Chlorine and antimicrobials cause concern

摘要

Washing dishes by hand with an antibacterial dishwashing liquid can do more than just ensure that the plates, glasses, and silverware are free from grease and germs, according to Peter Vikesland of the Virginia Polytechnic Institute and State University. In research published in this issue of ES&T(pp 3176-3185), he and his colleagues show that the triclosan used in household dishwashing soaps reacts with chlorinated water to produce significant quantities of chloroform. The research also suggests that triclosan can photochemically react with chlorine to produce highly chlorinated dioxins. Because of its antibacterial, antifungal, and antiviral properties, triclosan is found in toothpastes, deodorants, lotions, and hand soaps. It is also incorporated into a wide range of consumer goods, including kitchen tiles, children's toys, and athletic clothing. As triclosan flows down drains, it makes its way into surface waters and sewage treatment plants, the bile of fish, and breast milk, according to the Alliance for the Prudent Use of Antibiotics, a consumer group.