Application of the health risk assessment of acetochlor in the development of water quality criteria  

作　　者：Wei An Chenhui Sang Kristian Marienlund Jensen Peter Borgen Sørensen Bin Zhang Min Yang 

机构地区：[1]Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China [2]Sino-Danish College,University of Chinese Academy of Sciences,Beijing 100190,China [3]Department of Bioscience,Aarhus University,Vejlsovej 25,PO BOX 314,Silkeborg,Denmark [4]University of Chinese Academy of Sciences,Beijing 100049,China [5]Department of Mathematical Sciences,Tsinghua University,Beijing 100084,China

出　　处：《Journal of Environmental Sciences》2021年第12期48-54,共7页环境科学学报（英文版）

基　　金：supported by the Foundation of Major Science and Technology Program for Water Pollution Control and Treatment (No. 2018ZX07502001);the National Natural Science Foundation of China (Nos. 21976205, 21477158 and 11771241);。

摘　　要：Acetochlor is a widely used herbicide in agricultural production. Studies have shown that acetochlor has obvious environmental hormone effects, and long-term exposure may pose a threat to human health. To quantify the hazards of acetochlor in drinking water, a health risk assessment of acetochlor was conducted in major cities of China based on the data of acetochlor residue concentrations in drinking water. The approach of the Species Sensitivity Distributions(SSD) method is used to extrapolate from animal testing data to reflect worst case human toxicity. Results show that hazard quotients related to acetochlor residues in drinking water for different age groups range from 1.94 × 10-4 to 6.13 × 10-4, so, there are no indication of human risk. Compared to the total estimated hazard quotient from oral intake of acetochlor, the chronic exposure imputed to acetochlor residues in drinking water in China accounts for 0.4%. This paper recommends 0.02 mg/L to be the maximum acetochlor residue concentration level in drinking water and source water criteria.

关 键 词：ACETOCHLOR Drinking water Source water Contribution rate Species sensitivity distributions(SSD) 

分 类 号：TU991.21[建筑科学—市政工程] X820.4[环境科学与工程—环境工程]