Photochemical conversion of triclosan to 2,8-dichlorodibenzo-p-dioxin in aqueous solution

被引：223

作者：

Latch, DE

Packer, JL

Arnold, WA

McNeill, K

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

[2] Univ Minnesota, Dept Civil Engn, Minneapolis, MN 55455 USA

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2003年 / 158卷 / 01期

关键词：

triclosan; 2,8-dichlorodibenzo-p-dioxin; direct photolysis; photochemical cyclization; natural water;

D O I：

10.1016/S1010-6030(03)00103-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：63 / 66

页数：4

共 39 条

[1] Triclosan, a commonly used bactericide found in human milk and in the aquatic environment in Sweden [J].