Bromoform is a chemical byproduct of water chlorination, found in treated drinking water and pools. It can potentially damage the liver and kidneys and may be carcinogenic.

Bromoform is a volatile organic compound (VOC) that forms when chlorine used in water treatment reacts with naturally occurring organic matter. It's typically measured in parts per billion (ppb). While primarily a byproduct of chlorination, bromoform can also enter water sources through industrial discharges. The EPA regulates its presence in drinking water due to potential health concerns. Reducing organic matter in water before chlorination can help minimize bromoform formation.