摘要
采集并测定、分析山东省某化工厂及其下游地下水中14种挥发性有机物含量,运用内梅罗综合指数法对地下水水质进行评价,结合美国环境保护署推荐的风险评价模型,对地下水中挥发性有机物进行人体健康风险评价。结果表明:研究区挥发性有机物的检出率为1.32%~46.61%,主要污染物四氯化碳、1, 1, 2-三氯乙烷、四氯乙烯、氯仿、三氯乙烯的超标率为6.58%~35.53%,其中四氯化碳、 1, 1, 2-三氯乙烷平均浓度分别超过国家标准GB/T 14848—2017《地下水质量标准》中Ⅲ类水标准的142.43、 5.90倍;根据内梅罗综合指数法,将该研究区地下水水质分为4类,其中Ⅳ、Ⅴ类水样占26%,集中于化工厂区域,研究区下游地下水水质均为Ⅰ类,具有明显的空间差异性;通过饮水途径会对成人和儿童造成健康危害的区域面积占研究区面积的14.5%,下游地下水中挥发性有机物对人群不产生健康风险。
Contents of 14 volatile organic compounds in groundwater of a chemical plant and its downstream in Shandong province were collected, measured and analyzed. Nemerow comprehensive index method was used to evaluate groundwater quality, and the risk assessment model recommended by US Environmental Protection Agency was used to conduct human health risk assessment of volatile organic compounds in groundwater. The results show that the detection rates of volatile organic compounds in the study area are from 1.32% to 46.61%. The overstandard rates of main pollutants carbon tetrachloride, 1, 1, 2-trichloroethane, tetrachloroethylene, chloroform, and trichloroethylene are from 6.58% to 35.53%. The average concentrations of carbon tetrachloride and 1, 1, 2-trichloroethane exceed 142.43 times and 5.90 times of grade Ⅲ water standard in national standard GB/T 14848—2017 Standard for Groundwater Quality. The quality of groundwater in this study area is classified into 4 grades according to Nemerow comprehensive index method, in which water samples with grade IV and grade Ⅴ account for 26% and concentrate in the chemical plant and the quality of the groundwater in downstream of the study area was grade Ⅰ with obvious spatial difference. The area with health hazards to adults and children through drinking water accounts for 14. 5% of the study area,and the volatile organic compounds in the downstream groundwater do not have health risks to people.
作者
鲁栩春
刘本华
黄林显
孙慧中
毛伟健
LU Xuchun;LIU Benhua;HUANG Linxian;SUN Huizhong;MAO Weijian(School of Water Conservancy and Environment,University of Jinan,Jinan 250022,Shandong,China)
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2022年第6期645-652,共8页
Journal of University of Jinan(Science and Technology)
基金
国家自然科学基金项目(41772257)
山东省自然科学基金项目(ZR2019MD029)。
关键词
地下水
挥发性有机物
内梅罗综合指数法
健康风险
groundwater
volatile organic compound
Nemerow comprehensive index method
health risk
