The advances on the formation and toxic effects of haloacetaldehydes disinfection by-products in drinking water
10.3760/cma.j.cn112150-20200405-00515
- VernacularTitle:饮用水卤乙醛类消毒副产物的生成及毒效应研究进展
- Author:
Wuren MA
1
;
Wei LU
;
Zhiqiang JIANG
;
Weiwei ZHENG
;
Weidong QU
Author Information
1. 复旦大学公共卫生学院公共卫生安全教育部重点实验室 卫生健康委员会卫生技术评估重点实验室，上海 200032
- Keywords:
Drinking water;
Disinfection;
Toxic actions;
Haloacetaldehydes
- From:
Chinese Journal of Preventive Medicine
2021;55(3):418-423
- CountryChina
- Language:Chinese
-
Abstract:
Haloacetaldehydes (HALs), as emerging disinfection by-products in drinking water, are the third largest group by weight of identified disinfection by-products (DBPs) in drinking water. The formation of HALs is associated with the level of natural organic matter and halide in the source water, the treatment process of drinking water and the type of disinfectant. Recent studies have shown that HALs are more cytotoxic and genotoxic than regulated trihalomethanes and halo-acetic acids in drinking water. Currently, only a few countries and regions have set limit values for trichloroacetaldehyde with high detection rate in drinking water. However, there is growing evidence that unregulated HALs have a higher potential risk to human health compared to regulated HALs. This paper reviews the current research progress on the formation and transformation, cytotoxicity and genotoxicity of HALs in drinking water, and looks forward to the problems that should be paid attention in the future toxicological research of HALs in order to support the development of scientific drinking water standards.
