Pool smell is due, not to chlorine, but to chloramines, chemical compounds that build up in pool water when it is improperly treated.
Unknown, shenhuifu.org

The “pool smell” is not chlorine, but chloramines, which are created with the combination of chlorine and human sweat, oil, or urine.

Preview photo credit: Unknown, Shenhuifu
Source: chlorine.americanchemistry.com/Scienc…