Acute toxicity formation potential of benzophenone-type UV filters in chlorination disinfection process

被引：0

作者：

Qi Liu ^{[1
,2
]}

Zhenbin Chen ^{[1
,3
]}

Dongbin Wei ^{[2
]}

Yuguo Du ^{[2
]}

机构：

[1] School of Material Science and Engineering, Lanzhou University of Technology

[2] State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences

[3] State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology

来源：

Journal of Environmental Sciences | 2014年 / 02期

关键词：

acute toxicity formation potential; benzophenones; UV filters; chlorination; photobacterium assay;

D O I：

暂无

中图分类号：

X50 [一般性问题];

学科分类号：

071012 ; 0713 ; 083002 ;

摘要：

Benzophenones(BPs) are a class of widely used UV filters, which have been frequently detected within multiple environmental matrices. Disinfection is a necessary process in water treatment processes. The transformation behaviors and toxicity changes of 14 BP-type UV filters during chlorination disinfection treatment were investigated in this study. A new index, the acute toxicity formation potential, was proposed to evaluate the toxicity changes and potential risks of BP-type UV filters during chlorination treatment. It was found that 13 of 14 BP-type UV filters exhibited toxicity decreases in the chlorination disinfection process, more or less, while one showed a toxicity increase. The toxicity changes were dependent on substitution effects, such that 2,4-di-hydroxylated or 3-hydroxylated BPs exhibited significant toxicity decreases after chlorination treatment due to the ready cleavage of the aromatic ring. Importantly, the acute toxicity changes could be duplicated in an ambient water matrix.

引用

页码：440 / 447

页数：8

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