{"schemaVersion":"1.0","generatedAt":"2026-09-22","data":{"schemaVersion":"1.0","generatedAt":"2026-09-22","lines":[{"key":"aroma-chemistry","label":"Aroma chemistry","evidenceClass":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"entries":9},{"key":"material-emissions","label":"Material emissions","evidenceClass":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"entries":15},{"key":"environmental-smellscape","label":"Smellscape documentation","evidenceClass":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"entries":27},{"key":"atmospheric-phenomenon","label":"Atmospheric and environmental science","evidenceClass":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"entries":1},{"key":"cultural-record","label":"Cultural and historical record","evidenceClass":"historical","sourceKinds":["HISTORICAL RECORD","ARCHIVE"],"entries":3}],"searchedWithoutQualifyingSource":55,"statuses":[{"key":"not-yet-searched","label":"Not researched yet: no search for a source has been recorded.","entries":0},{"key":"searched-no-qualifying-source","label":"Searched, nothing suitable found yet: each search is recorded with its date, the kind of evidence sought and the reason it found nothing.","entries":55}],"failureReasons":[{"key":"adjacent-subject","label":"The research found concerns a neighbouring subject, not this one.","entries":42},{"key":"no-smell-finding","label":"Studies measure this place or material, but report no smell or odour-relevant finding.","entries":14},{"key":"not-checkable","label":"A relevant source exists, but its text could not be checked or its rights could not be established.","entries":8},{"key":"fiction-only","label":"Only fiction or poetry describes this smell; no non-fiction source was found.","entries":12},{"key":"none-found","label":"No relevant study or record was found.","entries":39},{"key":"covered-by-related-entry","label":"The evidence found belongs to a related entry, which already cites it.","entries":5}],"evidenceTypes":[{"key":"scientific","evidenceClass":"scientific","label":"Peer-reviewed research","description":"Laboratory, chemical or review research in general."},{"key":"sensory","evidenceClass":"scientific","label":"Sensory research","description":"Sensory panels and perception studies that report what a smell is like."},{"key":"environmental","evidenceClass":"scientific","label":"Environmental science","description":"Measurements of outdoor air, weather, soil, water or vegetation."},{"key":"material-emission","evidenceClass":"scientific","label":"Material emissions","description":"Measurements of what materials, products or indoor spaces release into the air."},{"key":"ethnographic","evidenceClass":"scientific","label":"Smellscape and ethnographic research","description":"Peer-reviewed smellwalks, interviews and fieldwork on how places smell to people."},{"key":"historical","evidenceClass":"historical","label":"Historical text","description":"Published non-fiction from the past, read on a digitised page."},{"key":"archival","evidenceClass":"historical","label":"Archival record","description":"Catalogued archive or library records."}],"searchBoundary":"A recorded search found no source whose own text supports a narrow smell claim. It does not mean the entry is wrong, and it is not a score or ranking. The question stays open on the research agenda.","entries":[{"urn":"smellbook:smell:baked-apple","slug":"baked-apple","name":"Baked Apple","category":"Food & Drink","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give baked apple its characteristic smell?","searches":[{"searchedOn":"2026-10-03","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No study of baked apple aroma was found."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No study of baked or cooked apple aroma was found; the results concern cider, apple pomace and edible films."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; Europe PMC again with narrower odour and emission terms; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The results concern fresh apples and apple juice processing, not baked apples."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels mention baked apples, without describing their smell."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles for baked, cooked, heated or puréed apple and apple pomace combined with aroma and volatile words, most cited first.","reason":"adjacent-subject","note":"The results concern uses of apple pomace and the quality of cloudy apple juice, not the aroma of baked or cooked apples."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles for heat-treated, cooked, pasteurised and puréed apple combined with aroma and volatile words, most cited first.","reason":"adjacent-subject","note":"The results concern pasteurised apple juice, cider and dried apple slices, not baked apples."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","none-found"]},{"urn":"smellbook:smell:burnt-toast","slug":"burnt-toast","name":"Burnt Toast","category":"Food & Drink","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give burnt toast its characteristic smell?","searches":[{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No study of burnt or overtoasted bread aroma was found."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels mention the smell of burnt toast."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles for bread and toast combined with burnt, over-toasted and charring words, most cited first.","reason":"adjacent-subject","note":"The results report the aroma of ordinary breads made with different yeasts or sourdoughs; none studies burnt or over-toasted bread."},{"searchedOn":"2026-10-24","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched food-science literature organised by toasting degree, browning and toast colour for controlled toasting series that report aroma at the darkest levels.","reason":"adjacent-subject","note":"The toasting series found follows odorants as bread browns to a distinct or medium brown colour; no readable text reports a dark or burnt condition separately."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","none-found"]},{"urn":"smellbook:smell:campfire","slug":"campfire","name":"Campfire","category":"Phenomena","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give campfire its characteristic smell?","searches":[{"searchedOn":"2026-10-03","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"covered-by-related-entry","note":"The result concerns smoked cheese; wood smoke already has its own claim."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"covered-by-related-entry","note":"The wood smoke and fireplace studies already cited concern burning wood; no study of open campfire smoke itself was found."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels describe the smell of camp fires."},{"searchedOn":"2026-10-06","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"covered-by-related-entry","note":"The results concern fire ecology and wildfire smoke; wood smoke research is already cited on the wood smoke entry."}],"status":"searched-no-qualifying-source","reasons":["covered-by-related-entry","fiction-only"]},{"urn":"smellbook:smell:cat-fur","slug":"cat-fur","name":"Cat Fur","category":"Animals","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give cat fur its characteristic smell?","searches":[{"searchedOn":"2026-10-03","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern how rodents react to cat odour."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern anal-gland and urine scents, not fur."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Europe PMC again with narrower odour and emission terms.","reason":"adjacent-subject","note":"The results concern compounds in cat urine and in wine, not cat fur."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"none-found","note":"No historical text describing the smell of cat fur was found."},{"searchedOn":"2026-10-06","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"adjacent-subject","note":"The results concern rodents' responses to cat odour, not the smell of cat fur."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched OpenAlex titles and abstracts for cat fur together with odour words.","reason":"no-smell-finding","note":"The results test how rats and mice react to cat fur, urine and blood odours as predator cues, without describing how cat fur smells to people."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","no-smell-finding","none-found"]},{"urn":"smellbook:smell:cinnamon-roll","slug":"cinnamon-roll","name":"Cinnamon Roll","category":"Food & Drink","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give cinnamon roll its characteristic smell?","searches":[{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"Only studies of other baked goods and a gluten-free recipe were found."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of the aroma of cinnamon rolls or buns was found."},{"searchedOn":"2026-10-06","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned the aroma of cinnamon pastries."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles for cinnamon in bakery products, buns, pastries and rolls combined with aroma and volatile words, most cited first.","reason":"adjacent-subject","note":"The only result tests cinnamon and clove oils against mould on baked cakes and reports no aroma finding."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles for cinnamon and cinnamaldehyde in baked goods combined with aroma, flavour and retention words, most cited first.","reason":"adjacent-subject","note":"The results concern cinnamon as a spice or oil, its antimicrobial uses and coumarin content, not the aroma of cinnamon rolls or similar baked goods."},{"searchedOn":"2026-10-24","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"sensory","approach":"Searched sensory-evaluation and consumer-science literature for studies where panels evaluated cinnamon rolls or buns themselves and reported aroma attributes.","reason":"no-smell-finding","note":"The studies of cinnamon rolls found report only how well panels liked the aroma of recipe variants, not what the aroma was like."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","no-smell-finding","none-found"]},{"urn":"smellbook:smell:fresh-herb-bundle","slug":"fresh-herb-bundle","name":"Fresh Herb Bundle","category":"Nature","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give fresh herb bundle its characteristic smell?","searches":[{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern single herbs or health effects, not a mixed bundle of herbs."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject"]},{"urn":"smellbook:smell:grilled-bread","slug":"grilled-bread","name":"Grilled Bread","category":"Food & Drink","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give grilled bread its characteristic smell?","searches":[{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The toasting studies found concern oven toasting, now cited for toast, not bread grilled over a flame or griddle."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles for bread and toast with toasting, grilling and roasting words combined with aroma and volatile words, most cited first.","reason":"covered-by-related-entry","note":"The results concern bread toasted in an oven and contaminants formed by toasting; oven toasting is already cited for the toast entry, and none concerns bread grilled over a flame or griddle."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","covered-by-related-entry"]},{"urn":"smellbook:smell:lemonade","slug":"lemonade","name":"Lemonade","category":"Food & Drink","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give lemonade its characteristic smell?","searches":[{"searchedOn":"2026-10-03","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern lemon oil, not the drink."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern lemon juice, limonene metabolism and dairy desserts, not the drink."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"sensory","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Semantic Scholar, a third index, with plain phrases.","reason":"none-found","note":"No study of lemonade aroma was found; the results concern other lemon-flavoured drinks and dried lemon peel."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"none-found","note":"The household books found give lemonade recipes without describing its smell."},{"searchedOn":"2026-10-14","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"sensory","approach":"Searched Europe PMC titles for lemonade and lemon-flavoured drinks combined with aroma, flavour and citral words, most cited first.","reason":"no-smell-finding","note":"The closest study measures spoilage compounds in shop-bought lemon soft drinks, without any finding on how lemonade smells."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","no-smell-finding","none-found"]},{"urn":"smellbook:smell:wet-dog","slug":"wet-dog","name":"Wet Dog","category":"Animals","line":"aroma-chemistry","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"Which volatile compounds or processes are reported to give wet dog its characteristic smell?","searches":[{"searchedOn":"2026-10-03","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern allergens and dog food."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern disease markers in dog hair and a rat behaviour named after wet dogs."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; Europe PMC again with narrower odour and emission terms; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The results concern dry dogs' indoor emissions and dog hair volatiles that attract ticks, not wet fur."},{"searchedOn":"2026-10-05","line":"aroma-chemistry","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels and plays mention a wet dog, without describing its smell."},{"searchedOn":"2026-10-06","line":"aroma-chemistry","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"adjacent-subject","note":"The results concern dogs detecting odours, not the smell of dogs."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only"]},{"urn":"smellbook:smell:ocean-spray","slug":"ocean-spray","name":"Ocean Spray","category":"Nature","line":"atmospheric-phenomenon","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What environmental or atmospheric processes are reported to produce the smell of ocean spray?","searches":[{"searchedOn":"2026-10-03","line":"atmospheric-phenomenon","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The dimethyl sulfide results concern wine and oil."},{"searchedOn":"2026-10-05","line":"atmospheric-phenomenon","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern iodine and sulfate chemistry of marine aerosol, not its smell."},{"searchedOn":"2026-10-05","line":"atmospheric-phenomenon","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; Europe PMC again with narrower odour and emission terms; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The dimethyl sulfide studies concern how seabirds, seals and turtles detect it, not how sea spray smells to people."},{"searchedOn":"2026-10-05","line":"atmospheric-phenomenon","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"not-checkable","note":"The only non-fiction description found is in the 1923 book whose rights could not be established."},{"searchedOn":"2026-10-06","line":"atmospheric-phenomenon","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned the smell of sea spray."},{"searchedOn":"2026-10-14","line":"atmospheric-phenomenon","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC for dimethyl sulfide together with phrases for the smell of the sea, and OpenAlex titles and abstracts for the smell of the sea.","reason":"adjacent-subject","note":"The results concern seabirds detecting dimethyl sulfide, bacteria that break it down and the flavour of fish and seaweed, not what people smell in sea spray."},{"searchedOn":"2026-10-24","line":"atmospheric-phenomenon","evidenceClass":"historical","evidenceType":"historical","approach":"Identified the previously found 1923 book on smells through library and bibliographic records, established its rights and read its chapter on remembered smells.","reason":"adjacent-subject","note":"The book (Aromatics and the Soul, 1923) describes the sea's smell carried inland and seaweed on a beach, which concerns sea air, its own entry, not spray from breaking waves."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found","not-checkable"]},{"urn":"smellbook:smell:baby-powder","slug":"baby-powder","name":"Baby Powder","category":"Objects","line":"cultural-record","evidenceClassSought":"historical","sourceKinds":["HISTORICAL RECORD","ARCHIVE"],"question":"Where is the smell of baby powder described in historical, literary or cultural records?","searches":[{"searchedOn":"2026-10-05","line":"cultural-record","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern plasticisers and cosmetic use, not fragrance."},{"searchedOn":"2026-10-05","line":"cultural-record","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Europe PMC again with narrower odour and emission terms.","reason":"adjacent-subject","note":"The fragranced baby products studied were shampoos, lotions, oils and sprays, not powder."},{"searchedOn":"2026-10-06","line":"cultural-record","evidenceClass":"scientific","evidenceType":"sensory","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned the scent of talcum or baby powder."},{"searchedOn":"2026-10-24","line":"cultural-record","evidenceClass":"scientific","evidenceType":"scientific","approach":"Searched cosmetic-control and analytical-chemistry literature for laboratory analyses of the fragrance substances in talcum and baby powders themselves.","reason":"not-checkable","note":"A 2012 analytical study quantifying perfumes in talcum powder was identified, but neither its abstract nor its text could be read to check what it measured."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found","not-checkable"]},{"urn":"smellbook:smell:clean-linen","slug":"clean-linen","name":"Clean Linen","category":"Objects","line":"cultural-record","evidenceClassSought":"historical","sourceKinds":["HISTORICAL RECORD","ARCHIVE"],"question":"Where is the smell of clean linen described in historical, literary or cultural records?","searches":[{"searchedOn":"2026-10-05","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","reason":"fiction-only","note":"Only novels mention the smell of clean linen; no non-fiction source with a checkable page was found."},{"searchedOn":"2026-10-05","line":"cultural-record","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"covered-by-related-entry","note":"The sun-dried laundry study is cited for fresh laundry and fresh towels; no study of linen itself was found."},{"searchedOn":"2026-10-05","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"none-found","note":"The household manuals found give washing instructions without describing a smell."},{"searchedOn":"2026-10-06","line":"cultural-record","evidenceClass":"scientific","evidenceType":"sensory","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"adjacent-subject","note":"The results concern malodour developing in worn textiles, not the smell of clean linen."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","covered-by-related-entry","fiction-only","none-found"]},{"urn":"smellbook:smell:cotton","slug":"cotton","name":"Cotton","category":"Objects","line":"cultural-record","evidenceClassSought":"historical","sourceKinds":["HISTORICAL RECORD","ARCHIVE"],"question":"Where is the smell of cotton described in historical, literary or cultural records?","searches":[{"searchedOn":"2026-10-05","line":"cultural-record","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern cotton plants and clothing chemistry, not the smell of cotton fabric."},{"searchedOn":"2026-10-05","line":"cultural-record","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The results concern odours taken up by cotton fabric, not the smell of cotton itself."},{"searchedOn":"2026-10-06","line":"cultural-record","evidenceClass":"scientific","evidenceType":"sensory","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"adjacent-subject","note":"The closest study compares how worn cotton and polyester shirts smell after exercise, which concerns sweat on fabric rather than clean cotton."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"adjacent-subject","note":"The only result speaks figuratively of the smell of cotton factories, not of cotton itself."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject"]},{"urn":"smellbook:smell:airport","slug":"airport","name":"Airport","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of airport been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern exhaust pollution and health screening, not airport odour."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The results concern aircraft emissions and air quality around airports, not the air inside terminals."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned odour or scent in airports."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:asphalt-after-rain","slug":"asphalt-after-rain","name":"Asphalt After Rain","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of asphalt after rain been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"Rain and petrichor studies concern soil; none studies wet asphalt."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The results concern emissions from hot asphalt during paving, already cited for hot pavement, not wet asphalt after rain."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned wet asphalt or pavement odour."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"adjacent-subject","note":"The results concern sun-heated asphalt or rain in later novels whose rights were not established, not asphalt after rain in a checkable text."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:bookstore","slug":"bookstore","name":"Bookstore","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of bookstore been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"covered-by-related-entry","note":"Book-emission studies concern historic books, already cited for the library and old-book entries."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Semantic Scholar, a third index, with plain phrases.","reason":"not-checkable","note":"One study of formaldehyde released by books in a large bookshop was found, but no abstract or identifier was available to check."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned the air or smell of bookshops."},{"searchedOn":"2026-10-14","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex titles and abstracts for bookstores together with formaldehyde.","reason":"not-checkable","note":"Two papers report more formaldehyde where many books are shelved in large bookstores, but carry no identifier and could not be checked against a claim."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"none-found","note":"Bookshops appear in the results, but none describes a smell."},{"searchedOn":"2026-10-24","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Tried to recover the citations of the two previously found bookshop formaldehyde papers through bibliographic, publisher and Chinese-language records.","reason":"not-checkable","note":"No citable record, journal, volume or identifier, could be found for either paper, so neither can be checked."}],"status":"searched-no-qualifying-source","reasons":["covered-by-related-entry","none-found","not-checkable"]},{"urn":"smellbook:smell:cinema-popcorn","slug":"cinema-popcorn","name":"Cinema Popcorn","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of cinema popcorn been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"covered-by-related-entry","note":"The cinema study measured compounds breathed out by audiences, not popcorn; popcorn has its own claim."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"covered-by-related-entry","note":"Popcorn aroma is already cited for the popcorn entry; no study of cinema air was found."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned popcorn smell in cinemas."}],"status":"searched-no-qualifying-source","reasons":["covered-by-related-entry","none-found"]},{"urn":"smellbook:smell:elevator","slug":"elevator","name":"Elevator","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of elevator been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"no-smell-finding","note":"Only one study of elevator air quality was found, without a smell finding."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of the air in lifts was found."}],"status":"searched-no-qualifying-source","reasons":["no-smell-finding","none-found"]},{"urn":"smellbook:smell:farmers-market","slug":"farmers-market","name":"Farmers Market","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of farmers market been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No smellscape study of food markets was found."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No smellscape or smellwalk study of food markets was found."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"none-found","note":"The market descriptions found in magazines do not describe the smell."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned market smellscapes."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"no-smell-finding","note":"A smellwalk study of a traditional market in Kunming divides the market into planning zones without reporting what the market smells like."}],"status":"searched-no-qualifying-source","reasons":["no-smell-finding","none-found"]},{"urn":"smellbook:smell:florist-shop","slug":"florist-shop","name":"Florist Shop","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of florist shop been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern floral scent genes and breeding, not shops."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The results concern flower scent biology and the vase life of cut flowers, not flower shops."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels mention florists' shops, without describing their smell."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"adjacent-subject","note":"The results concern how single species of cut flowers emit scent under storage conditions, not the smell of a florist shop."},{"searchedOn":"2026-10-24","line":"environmental-smellscape","evidenceClass":"historical","evidenceType":"historical","approach":"Searched digitised florists' trade journals, trade catalogues and accounts of the flower trade for descriptions of the scent inside florists' shops.","reason":"adjacent-subject","note":"A 1900 florists' supply catalogue and accounts of street flower sellers mention the fragrance of single flowers only, not the inside of a florist's shop."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only"]},{"urn":"smellbook:smell:greenhouse","slug":"greenhouse","name":"Greenhouse","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of greenhouse been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern plant defence volatiles, not greenhouse air."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The results concern air pollution in general and plants that remove pollutants indoors, not greenhouse air."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"none-found","note":"No historical text describing the smell of hothouses was found."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"adjacent-subject","note":"The results concern odour from composting, manure and biogas, not greenhouses."},{"searchedOn":"2026-10-14","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles for greenhouses combined with volatile organic compound and odour words, most cited first.","reason":"adjacent-subject","note":"The results concern greenhouse gas emissions from farms and waste treatment and insect responses to crop volatiles, not the air of a greenhouse as people meet it."},{"searchedOn":"2026-10-14","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC for greenhouses and glasshouses with crop volatiles and air-monitoring words, most cited first.","reason":"adjacent-subject","note":"The results concern greenhouse gases, whitefly attraction to crops and pest control with added volatiles, with no measurement of the air inside a greenhouse."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:grocery-bakery-aisle","slug":"grocery-bakery-aisle","name":"Grocery Bakery Aisle","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of grocery bakery aisle been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The store scent studies concern scents added to shops, not bread baked in a supermarket."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject"]},{"urn":"smellbook:smell:hotel-bathroom","slug":"hotel-bathroom","name":"Hotel Bathroom","category":"Spaces","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of hotel bathroom been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of hotel bathrooms with a smell finding was found."}],"status":"searched-no-qualifying-source","reasons":["none-found"]},{"urn":"smellbook:smell:hotel-breakfast","slug":"hotel-breakfast","name":"Hotel Breakfast","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of hotel breakfast been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of hotel breakfast rooms was found."}],"status":"searched-no-qualifying-source","reasons":["none-found"]},{"urn":"smellbook:smell:hotel-lobby","slug":"hotel-lobby","name":"Hotel Lobby","category":"Spaces","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of hotel lobby been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The hotel scent studies concern fragrance added for marketing; the one on lobbies analyses online reviews and was not confirmed as peer-reviewed research."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned scent in hotel lobbies."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"none-found","note":"No result concerned scent in hotel lobbies."},{"searchedOn":"2026-10-14","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex titles and abstracts for hotel lobby scent, and Europe PMC titles for hotels and lobbies with scent, odour and fragrance words.","reason":"not-checkable","note":"A study of online reviews reports floral scents in hotel lobbies, but it could not be confirmed as peer-reviewed research; the rest are patents."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found","not-checkable"]},{"urn":"smellbook:smell:kitchen-sink","slug":"kitchen-sink","name":"Kitchen Sink","category":"Spaces","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of kitchen sink been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern sewer gas poisoning, not kitchen sinks."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The results concern kitchen sponges and their microbes, not the smell at the sink."},{"searchedOn":"2026-10-14","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles for drains and sinks with odour and sulfur words, and OpenAlex titles and abstracts for drain malodour.","reason":"adjacent-subject","note":"The results concern storm drains, hospital sink-drain bacteria, sewers and latrines, not the smell of a household kitchen sink."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"no-smell-finding","note":"An 1860 nursing manual names the sink among places in a house from which unwholesome air reaches a sickroom, but describes no smell of the sink itself."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","no-smell-finding"]},{"urn":"smellbook:smell:laundromat","slug":"laundromat","name":"Laundromat","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of laundromat been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern microfibres from dryers and dry-cleaning solvents, not the smell of a laundromat."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of the air in laundromats was found."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned laundromat or dryer vent odour."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:morning-kitchen","slug":"morning-kitchen","name":"Morning Kitchen","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of morning kitchen been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The cooking studies found measure pollutants from cooking meals, not the mix of coffee, toast and fruit in a morning kitchen."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"adjacent-subject","note":"The closest study compares odour intensity from cooking coffee, cabbage and clams in laboratory tests, not a home kitchen in the morning."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"adjacent-subject","note":"The results concern food safety, stoves and the social history of kitchens, not the smell of a kitchen in the morning."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"not-checkable","note":"A novel of 1899 mentions the smell of coffee lingering in a clean kitchen, but its transcription has no scanned pages to cite."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","not-checkable"]},{"urn":"smellbook:smell:morning-street","slug":"morning-street","name":"Morning Street","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of morning street been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The urban smellscape studies found concern post-socialist Poland and a temple in Hong Kong, not morning streets."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The urban smellscape studies found map city smells in general, not streets in the morning."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject"]},{"urn":"smellbook:smell:old-attic","slug":"old-attic","name":"Old Attic","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of old attic been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern emissions in libraries and archives, not attics."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The results concern attic temperatures and ventilation, not their air or smell."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels and stories describe the smell of garrets and attics."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"none-found","note":"No result concerned the smell of attics or lofts."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","none-found"]},{"urn":"smellbook:smell:open-window-after-rain","slug":"open-window-after-rain","name":"Open Window After Rain","category":"Spaces","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of open window after rain been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The geosmin studies concern earthy smells in water, foods and molds indoors, not rain air through a window."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject"]},{"urn":"smellbook:smell:rain-on-concrete","slug":"rain-on-concrete","name":"Rain on Concrete","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of rain on concrete been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"Rain and petrichor studies concern soil; none studies wet concrete."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of rain on concrete was found."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:rainy-bus-stop","slug":"rainy-bus-stop","name":"Rainy Bus Stop","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of rainy bus stop been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of bus stops with a smell finding was found."}],"status":"searched-no-qualifying-source","reasons":["none-found"]},{"urn":"smellbook:smell:rainy-park","slug":"rainy-park","name":"Rainy Park","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of rainy park been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No smellscape study of parks in the rain was found."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"adjacent-subject","note":"Smellwalk studies of urban parks in Beijing and Guangzhou concern parks in dry summer weather, not parks in the rain."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:school-cafeteria","slug":"school-cafeteria","name":"School Cafeteria","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of school cafeteria been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The school canteen studies concern what pupils eat and waste, not the smell of the room."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"none-found","note":"No result concerned odour in school canteens or cafeterias."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:sports-hall","slug":"sports-hall","name":"Sports Hall","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of sports hall been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"no-smell-finding","note":"The results concern particles and artificial turf, not the smell of sports halls."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of the air in sports halls or gyms with a smell finding was found."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"none-found","note":"No result concerned odour in sports halls or gymnasiums."}],"status":"searched-no-qualifying-source","reasons":["no-smell-finding","none-found"]},{"urn":"smellbook:smell:supermarket-produce","slug":"supermarket-produce","name":"Supermarket Produce","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of supermarket produce been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern produce storage and shelf life, not store air."},{"searchedOn":"2026-10-06","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned the smell of produce sections in shops."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:tram-interior","slug":"tram-interior","name":"Tram Interior","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of tram interior been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Europe PMC again with narrower odour and emission terms.","reason":"no-smell-finding","note":"Trams appear in one exposure study only for pollutant levels on their upper and lower decks, without a smell finding."},{"searchedOn":"2026-10-07","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"ethnographic","approach":"Searched OpenAlex and Semantic Scholar, which also index planning, tourism and social-science research, for smellscape, smellwalk and perception studies of the setting itself.","reason":"adjacent-subject","note":"The closest study concerns how odour adds to perceived crowding in public transport in general, not the smell of trams."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"none-found","note":"Tram-cars appear in the results, but none describes the smell inside one."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","no-smell-finding","none-found"]},{"urn":"smellbook:smell:vintage-clothing-shop","slug":"vintage-clothing-shop","name":"Vintage Clothing Shop","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of vintage clothing shop been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The only study found tests an odour added to a second-hand store's air, not the shop's own smell."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of the smell of stored or second-hand clothing was found."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:wet-forest","slug":"wet-forest","name":"Wet Forest","category":"Places","line":"environmental-smellscape","evidenceClassSought":"cultural","sourceKinds":["PRIMARY RESEARCH","HISTORICAL RECORD","ARCHIVE"],"question":"How has the smell of wet forest been documented in smellscape, sensory-ethnography or historical records?","searches":[{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern drought effects on forest emissions, not wet forests."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; Europe PMC again with narrower odour and emission terms; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The results concern forest emissions in drought or the wet season in general, not forests just after rain."},{"searchedOn":"2026-10-05","line":"environmental-smellscape","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"adjacent-subject","note":"An 1878 travel book compares the smell of forests in general, not forests after rain; the rest are novels."},{"searchedOn":"2026-10-14","line":"environmental-smellscape","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles for rain, rainfall and wetting in forests and canopies combined with plant-emission words, most cited first.","reason":"no-smell-finding","note":"The results cover tree growth, seasonal emissions above the Amazon and rain-splashed fungal spores, with no measurement of forest emissions during or just after rain."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","no-smell-finding"]},{"urn":"smellbook:smell:backpack","slug":"backpack","name":"Backpack","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from backpack, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"no-smell-finding","note":"The only relevant study measures plasticisers in children's backpacks, not smell."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of backpacks or school bags with a smell or emission finding was found."}],"status":"searched-no-qualifying-source","reasons":["no-smell-finding","none-found"]},{"urn":"smellbook:smell:beach-towel","slug":"beach-towel","name":"Beach Towel","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from beach towel, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern towel malodour and microbes, not beach towels."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of beach towels was found."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:clay","slug":"clay","name":"Clay","category":"Nature","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from clay, and under which conditions?","searches":[{"searchedOn":"2026-10-03","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern contaminated soil and wine stored in clay jars."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern geosmin-producing soil bacteria, not clay or pottery."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"not-checkable","note":"The classic study of the odour of moistened clay has no abstract available to check; newer results concern soil bacteria."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"none-found","note":"No historical text describing the smell of moistened clay was found."},{"searchedOn":"2026-10-14","line":"material-emissions","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched for the summary of the classic study of the odour of moistened clay on its publisher's page.","reason":"not-checkable","note":"The classic study of the odour of moistened clay still has no summary that could be read to check a claim."},{"searchedOn":"2026-10-24","line":"material-emissions","evidenceClass":"scientific","evidenceType":"environmental","approach":"Checked whether the previously found classic study of moistened clay is the 1964 argillaceous-odour paper, and sought its readable text through publisher and bibliographic records.","reason":"not-checkable","note":"The study appears to be the 1964 paper already cited for rain and soil, but no abstract or readable text could be found to check a statement about clay."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found","not-checkable"]},{"urn":"smellbook:smell:dry-leaves","slug":"dry-leaves","name":"Dry Leaves","category":"Nature","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from dry leaves, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"Leaf-litter studies concern decomposing or freshly fallen leaves, not leaves that have dried."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The results concern leaf litter decomposition and methanol budgets, not dry fallen leaves."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only poems and novels describe the smell of dead leaves."},{"searchedOn":"2026-10-14","line":"material-emissions","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched Europe PMC titles for leaf litter, senescent, dead and fallen leaves combined with volatile and emission words, most cited first.","reason":"no-smell-finding","note":"The results concern leaf-litter decomposition, leaf pigments, composting and one weed whose litter volatiles harm other plants, without describing the smell of dry fallen leaves."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","no-smell-finding"]},{"urn":"smellbook:smell:dust","slug":"dust","name":"Dust","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from dust, and under which conditions?","searches":[{"searchedOn":"2026-10-03","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"no-smell-finding","note":"The results concern semi-volatile pollutants carried in dust."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"no-smell-finding","note":"The results concern allergens and semi-volatile pollutants in house dust, not its smell."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","reason":"not-checkable","note":"A 1923 book on smells describes dust, but the rights status of its text could not be established."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Europe PMC again with narrower odour and emission terms.","reason":"adjacent-subject","note":"The results concern dust in livestock buildings and house-dust allergens; no study of how settled indoor dust smells was found."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels describe the smell of dust, besides the 1923 book whose rights could not be established."},{"searchedOn":"2026-10-06","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"no-smell-finding","note":"The results measure flame retardants and plasticisers in house dust, without any smell finding."},{"searchedOn":"2026-10-24","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Identified the previously found 1923 book on smells through library and bibliographic records, established its rights and read its digitised transcription.","reason":"not-checkable","note":"The book, Dan McKenzie's Aromatics and the Soul (1923), mentions dust only among other smells in the chapters read, and no scanned edition could be found to cite."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","no-smell-finding","not-checkable"]},{"urn":"smellbook:smell:fresh-concrete","slug":"fresh-concrete","name":"Fresh Concrete","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from fresh concrete, and under which conditions?","searches":[{"searchedOn":"2026-10-03","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The result concerns cement pipe linings in drinking water."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern damp floors and sewer corrosion, not freshly poured concrete."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Europe PMC again with narrower odour and emission terms.","reason":"adjacent-subject","note":"The ammonia studies concern walls made with an antifreeze additive and floors in animal housing, not freshly poured concrete."},{"searchedOn":"2026-10-14","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles for building-materials terms for cement, mortar and concrete combined with odour, emission or volatile words, most cited first.","reason":"adjacent-subject","note":"The results concern cement kiln emissions, emission inventories of cement plants and concrete materials, not the odour or volatiles of freshly poured concrete."},{"searchedOn":"2026-10-14","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles for cement, mortar, concrete and screed emissions together with indoor, building, curing and admixture words, most cited first.","reason":"adjacent-subject","note":"The results concern cement production, dust from cutting concrete and ammonia released for years from finished walls made with an antifreeze additive, not freshly poured concrete."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject"]},{"urn":"smellbook:smell:new-shoes","slug":"new-shoes","name":"New Shoes","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from new shoes, and under which conditions?","searches":[{"searchedOn":"2026-10-03","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The result concerns emissions inside shoe factories."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern factory emissions, shoe soles and foot odour, not new shoes."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The results concern rubber industry emissions and consumer products in general, not new shoes."},{"searchedOn":"2026-10-06","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"adjacent-subject","note":"The results concern solvent and emission exposure in footwear factories, not the smell of new shoes."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"none-found","note":"New boots appear in novels and magazines, but none describes their smell."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:newspaper","slug":"newspaper","name":"Newspaper","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from newspaper, and under which conditions?","searches":[{"searchedOn":"2026-10-03","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No study of the smell of printed paper was found."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"The results concern urban emissions and chemical sensors; no study of the smell of printed newspapers was found."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","reason":"fiction-only","note":"Only novels describe the smell of printer's ink; none was registered."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"An indoor air survey found higher toluene at newspaper stands but did not attribute it to newspapers or their ink."},{"searchedOn":"2026-10-06","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned newsprint or printing ink odour."},{"searchedOn":"2026-10-14","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles for printing ink, printed paper and newsprint combined with odour, volatile and emission words, most cited first.","reason":"adjacent-subject","note":"The results concern printed sensors, ink formulation, de-inking and toluene from printed magazines indoors, with no odour or volatile finding for newspapers."},{"searchedOn":"2026-10-14","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex titles and abstracts for printing ink odour.","reason":"adjacent-subject","note":"The relevant results analyse odorous compounds in recycled food-packaging board and printing-ink development, not newsprint."},{"searchedOn":"2026-10-24","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched digitised printing-trade books and journals and accounts of newspaper production for descriptions of freshly printed newspapers and printer's ink.","reason":"no-smell-finding","note":"An 1878 account of how a daily newspaper is produced and a printing-trade journal volume describe presses and paper, but say nothing about how newspapers smell."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","no-smell-finding","none-found"]},{"urn":"smellbook:smell:pencil-case","slug":"pencil-case","name":"Pencil Case","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from pencil case, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No study of erasers or stationery with a smell finding was found."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of erasers, pencils or pencil cases was found."}],"status":"searched-no-qualifying-source","reasons":["none-found"]},{"urn":"smellbook:smell:raincoat","slug":"raincoat","name":"Raincoat","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from raincoat, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern volatiles in toys and packaging, not rain clothing."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of raincoats or rainwear with a smell or emission finding was found."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"none-found","note":"Results on mackintoshes and india-rubber concern their making and use, not their smell."},{"searchedOn":"2026-10-24","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched digitised india-rubber trade literature and periodical accounts of the waterproofing trade for descriptions of the smell of rubberised waterproof coats.","reason":"adjacent-subject","note":"An 1859 periodical account of the india-rubber trade describes the smell of vulcanised rubber in general, not of waterproof coats or the cloth they were made of."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:tennis-ball","slug":"tennis-ball","name":"Tennis Ball","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from tennis ball, and under which conditions?","searches":[{"searchedOn":"2026-10-03","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"No relevant study was found."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"none-found","note":"Only a composting study using discarded tennis balls was found."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Semantic Scholar, a third index, with plain phrases.","reason":"adjacent-subject","note":"The results concern odours at rubber processing plants and tennis ball mechanics, not tennis balls."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"none-found","note":"No historical text describing the smell of tennis balls was found."},{"searchedOn":"2026-10-06","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"No result concerned the smell of tennis balls or rubber balls."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","none-found"]},{"urn":"smellbook:smell:umbrella-after-rain","slug":"umbrella-after-rain","name":"Umbrella After Rain","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from umbrella after rain, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of umbrellas was found."}],"status":"searched-no-qualifying-source","reasons":["none-found"]},{"urn":"smellbook:smell:wet-stone","slug":"wet-stone","name":"Wet Stone","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from wet stone, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern wine minerality and aquifer chemistry; the classic petrichor study is already registered for rain and soil."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"environmental","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"adjacent-subject","note":"The petrichor results concern soil and rock in general, already cited for rain and soil, not wet stone."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only poems and novels describe the smell of wet earth and stone."},{"searchedOn":"2026-10-06","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"none-found","note":"The results concern minerals and water chemistry, with no study of the smell of wet stone."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","none-found"]},{"urn":"smellbook:smell:wet-wool","slug":"wet-wool","name":"Wet Wool","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from wet wool, and under which conditions?","searches":[{"searchedOn":"2026-10-03","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern wool used as an air filter."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"scientific","reason":"adjacent-subject","note":"The results concern livestock odours and fibres used as filters, not damp wool."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"historical","evidenceType":"historical","approach":"Searched Wikisource for non-fiction such as encyclopaedias, household manuals and magazines, then read the candidate pages.","reason":"fiction-only","note":"Only novels describe the smell of wet wool; an 1877 science article on wet clothing does not mention smell."},{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research; and Semantic Scholar, a third index, with plain phrases.","reason":"not-checkable","note":"A study of sheep wool volatiles and wool odour was found, but no abstract was available to check a claim against; the other results concern body odour held by fabrics."},{"searchedOn":"2026-10-06","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles and abstracts with technical terms for the material or setting itself, combined with odour words, most cited first, in one round for the Iconic 100 entries still without a VERIFIED claim.","reason":"no-smell-finding","note":"The results concern the chemistry and processing of wool, without any smell finding."},{"searchedOn":"2026-10-14","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched Europe PMC titles for wool and lanolin combined with odour and volatile words, most cited first.","reason":"no-smell-finding","note":"The results cover sheep biology, wool chemistry, shrink resistance and flame retardancy of wool fabric, with no odour or volatile finding for wet wool."}],"status":"searched-no-qualifying-source","reasons":["adjacent-subject","fiction-only","no-smell-finding","not-checkable"]},{"urn":"smellbook:smell:winter-coat","slug":"winter-coat","name":"Winter Coat","category":"Objects","line":"material-emissions","evidenceClassSought":"scientific","sourceKinds":["PRIMARY RESEARCH","REVIEW"],"question":"What volatile emissions have been measured from winter coat, and under which conditions?","searches":[{"searchedOn":"2026-10-05","line":"material-emissions","evidenceClass":"scientific","evidenceType":"material-emission","approach":"Searched OpenAlex, a second index that also covers social-science, hospitality, building and transport research.","reason":"none-found","note":"No study of the smell of stored coats or wool garments was found."},{"searchedOn":"2026-10-19","line":"cultural-record","evidenceClass":"historical","evidenceType":"historical","approach":"Searched English and French Wikisource full text for period phrases naming the setting or object with smell words, then read the candidate chapters and their scanned pages.","reason":"none-found","note":"No result described the smell of an overcoat or winter coat."}],"status":"searched-no-qualifying-source","reasons":["none-found"]}],"boundary":"The agenda lists open research questions, not findings. It names no sources and makes no claim; an answer enters SmellBook only through source intake with a checked citation and classified rights. The agenda data lists entries alphabetically by line and entry; that order, like any order on a page, is not a priority or importance ranking."}}