Linked to the odour · the claim says “with a penetrating odour”
In the air of chlorinated indoor swimming pools, trichloramine, a volatile and irritant compound with a penetrating odour, forms as a disinfection by-product when chlorine reacts with nitrogen compounds; acid amides, especially urea, as well as ammonium ions and α-amino acids, were its most efficient precursors at acidic and neutral pH.
Scope: Formation chemistry and water-to-air transfer of trichloramine, studied experimentally and by calculation; it does not measure the air of a particular pool. CLM-POOL-001 ↗
Checked against PubChem and Wikidata on 2026-10-05 by an automated identifier check. Every name SmellBook uses must resolve to the same single PubChem compound.
WHAT THIS MEANS
SmellBook lists a molecule only where a VERIFIED claim names it, in the role and scope that claim states. A molecule reported in a smell's evidence is not the whole smell: most smells come from many compounds together, and the studies measured particular samples, such as one cultivar, an essential oil or a cooked product.