Distribution and risk assessment of hexachlorobutadiene, pentachloroanisole, and chlorobenzenes in sediment and wild fish from a region affected by industrial and agricultural activities in South China
文献类型： 外文期刊
作者： Lu, Yan 1 ; Chen, Zhi-Feng 1 ; Chen, Yi-Jie 1 ; Xu, Ying-Zao 1 ; Chen, Yanyan 1 ; Dai, Xiaoxin 4 ; Yao, Li 5 ; Qi, Zenghu 1 ;
作者机构： 1.Guangdong Univ Technol, Sch Environm Sci & Engn, Inst Environm Hlth & Pollut Control,Guangdong Key, Guangzhou Key Lab Environm Catalysis & Pollut Con, Guangzhou 510006, Peoples R China
2.South China Normal Univ, Guangdong Prov Key Lab Chem Pollut & Environm Saf, Guangzhou 510006, Peoples R China
3.Hong Kong Baptist Univ, Dept Chem, State Key Lab Environm & Biol Anal, Hong Kong 999077, Peoples R China
4.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Key Lab Recreat Fisheries Res, Minist Agr,Lab Qual & Safety Risk Assessment Aqua, Guangzhou 510380, Peoples R China
5.Guangdong Acad Sci, Guangdong Inst Anal, China Natl Analyt Ctr, Guangzhou 510070, Peoples R China
关键词： Hexachlorobutadiene; Pentachloroanisole; Chlorobenzene; Distribution; Risk
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：10.588； 五年影响因子：10.129 ）
ISSN： 0304-3894
年卷期： 2021 年 417 卷
页码：
收录情况： SCI
摘要： Hexachlorobutadiene, pentachloroanisole, and chlorobenzenes are regulated to control their release into the environment. There is little information regarding the distribution and risks of these pollutants in Chinese rivers. Therefore, we selected a prosperous agricultural and industrial region in South China as our study area and investigated the contamination profiles and risks of these pollutants in sediment and fish tissue samples. The results showed that, when compared with their levels in sediment, these lipophilic pollutants tended to accumulate in fish tissues in the following order: liver > brain > muscle. Some trichlorobenzene was found to be the result of reductive dechlorination of higher chlorinated benzenes. Hexachlorobutadiene and hexachlorobenzene could pose medium risks at certain sampling sites, but in general, almost no risk was found to the ecosystem. When the estimated daily human intakes of analytes through fish consumption were calculated for different age groups, the results suggested the analytes were unlikely to be a serious health concern for human. Our results could be used to update the existing data on the occurrence of these pollutants in the aquatic environment and to provide information for further pollution control by the local government.
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