The direct photolysis of triclosan (5-chloro-2-(2,4-dichlorophenoxy) phenol), an antimicrobial additive commonly detected in surface waters, is studied. It is found that 2,8-dichlorodibenzo-p-dioxin (2,8-DCDD) is produced in both buffered and natural (Mississippi River) water with yields ranging from 1 to 12% under a variety of conditions. This result indicates that triclosan is likely converted to 2,8-DCDD in sunlight-irradiated surface waters.
|Original language||English (US)|
|Number of pages||4|
|Journal||Journal of Photochemistry and Photobiology A: Chemistry|
|State||Published - May 30 2003|
- Direct photolysis
- Natural water
- Photochemical cyclization