黄河头道拐冰封期水中HCHs的健康风险评价研究  

HCHs Residue Level and Health Risk Assessment in Icebound Season at First Bent of Yellow River

作　　者：韩珍 张琦[2] 裴国霞[2] Han Zhen;Zhag Qi;Pei Guoxia(Vocational and Technical College of Inner Mongolia Agricultural University Construction Engineering Technology Department, Inner Mongolia, Baotou 014199, China;Water Conservancy and Civil Engineering College of Inner Mongolia Agricultural University, Inner Mongolia, Hohhot 010018, China)

机构地区：[1]内蒙古农业大学职业技术学院建筑工程技术系,内蒙古包头014199 [2]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018

出　　处：《环境科学与管理》2021年第11期177-181,共5页Environmental Science and Management

基　　金：国家自然基金项目黄河(内蒙段)冰封期典型POPs在多相介质中输移机理及规律的研究(51169018);多因素共同作用下黄河(内蒙段)河道演变特性及规律研究(51369021);内蒙古黄灌区土壤环境中典型POPs迁移机制及降解特性研究(51469023)资助。

摘　　要：通过GC-ECD检测器检测得出,黄河头道拐冰封期水中∑HCH平均值为60.895 ng/L。经分析,δ-HCH是HCHs的主要残留物,占HCHs残留总量的65%。利用USEPA推荐的暴露评价模型,从饮水、食鱼和皮肤接触三个途径对HCHs的四种异构体进行了健康风险评价,结果显示HCHs的四种异构体中,δ-HCH的致癌风险质量分数最大;HCHs综合致癌风险值为1.46×10^(-4);食鱼途径为主要的致癌风险来源,其综合致癌风险值为1.22×10^(-4);HCHs综合非致癌风险值为0.391。The GC-ECD detector finds that the average value of∑HCH in freezing period of the first Bent of Yellow River was 60.895 ng/L.δ-HCH was the main residue of HCHs,accounting for 65%of the total residue of HCHs.Using the exposure assessment model recommended by USEPA,the health risk of four HCHs isomers was analyzed from three ways:drinking water,eating fish and skin contact.The results showed that of the four isomers of HCHs,δ-HCH had the highest carcinogenic risk mass fraction,combined cancer risk of HCHs was 1.46×10^(-4).Fish-eating was the major cancer risk source with HCHs combined cancer risk of 1.22×10^(-4).The combined non-cancer risk of HCHs is 0.391.

关 键 词：黄河头道拐 冰封期 HCHS 健康风险评价 

分 类 号：X820.4[环境科学与工程—环境工程]