摘要
为研究泰州市浅层地下水中挥发性有机物污染特征及风险水平,对2021年11月采集的17份具有代表性的样品进行分析,检测57种挥发性有机物(volatile organic compounds,VOCs)浓度,采用US EPA推荐的健康和生态风险评价模型评估VOCs风险。结果表明,有10个点位的地下水样品检测出VOCs,检出的VOCs以卤代烃和芳香烃类为主。单种挥发性有机物最高检出率为35.3%。检出的VOCs中,顺1,2-二氯乙烯质量浓度最高,为83.8μg·L^(-1)。工业企业区域地下水污染程度高于农业用地。泰州地区地下水VOCs污染程度较低。风险评价结果显示,地下水样品中VOCs的总致癌风险指数在0~5.0×10^(-5)之间,总非致癌风险指数在0~0.79之间,部分点位VOCs存在一定致癌风险。
To investigate the pollution characteristics and risk levels of volatile organic compounds(VOCs)in shallow groundwater of Taizhou,17 representative groundwater samples collected in November 2021 were analyzed for 57 VOCs using the purge-and-trap method.Health risk assessment and ecological risk assessment models recommended by the US EPA were applied to assess VOC risks.The results showed that VOCs were detected in 10 sampling points.The highest detection rate among individual VOCs was 35.3%.Cis-1,2-dichloroethylene showed the highest concentration of 83.8μg·L^(-1).The organic pollution levels across different land groundwater use types followed the order:industrial areas>agricultural areas.The total carcinogenic risk index of VOCs in groundwater samples was 0~5.0×10^(-5),and the total non-carcinogenic risk index was 0~0.79.Some samples may pose a carcinogenic risk and require attention.
作者
苏文鹏
SU Wenpeng(Taizhou Environmental Monitoring Center of Jiangsu Province,Key Laboratory for Monitoring of Soil Organic Pollutants of Jiangsu Province,Taizhou 225300,China)
出处
《生态毒理学报》
北大核心
2026年第1期514-520,共7页
Asian Journal of Ecotoxicology
基金
江苏省生态环境监测科研基金项目(2306)
江苏省环境保护土壤有机污染物监测重点实验室2023年生态环境监测科研基金项目(2305)。
关键词
挥发性有机物
泰州地下水
风险评价
气相色谱-质谱法
污染特征
volatile organic compounds
groundwater in Taizhou
health risk assessment
gas chromatography-mass spectrometry
pollution characteristics
