Pollution characteristics and risks of volatile organic compounds in drinking water sources of Hailar River and nearby rivers groundwater

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摘要：

为明晰海拉尔河及傍河地下水饮用水源中挥发性有机物(volatile organic compounds,VOCs)的污染特征和风险水平,对2020年8月在海拉尔河及傍河地下水采集的12个水样采用吹扫捕集气相色谱质谱联用仪进行了检测分析.结果表明,12个采样点均有VOCs检出,研究区域水体中VOCs污染程度低,总体呈现地下水污染略高于地表水的状况,其中溴二氯甲烷、1,1-二氯乙烷、2,2-二氯丙烷、1,2-二溴-3-氯丙烷、二溴甲烷、1,3-二氯丙烷检出率为100.00%.检出的VOCs中,1,3-二氯丙烷的质量浓度ρ最高,平均值为2480.23 ng·L-1,范围为1135.59~3491.53 ng·L-1;ρ(氯苯)最低,平均值仅为2.96 ng·L-1.采用USEPA(美国环境保护局)推荐的健康和生态风险评价模型评估VOCs风险,结果显示各采样点位无非致癌健康风险,致癌健康风险在可接受范围内;水生生物有中等强度生态风险.

In order to clarify the pollution characteristics and risk levels of volatile organic compounds(VOCs)in the drinking water sources of the Hailar River and nearby rivers groundwater,the 12 water samples collected in the Hailar River and nearby rivers groundwater in August 2020 were purged.The trapping gas chromatography mass spectrometer was used for detection and analysis.The results showed that VOCs were detected in 12 sampling points,and the degree of VOCs pollution in the water bodies in the study area was low,and the pollution in the groundwater was generally slightly higher than that in surface water.Among them,the detection rate of bromodichloromethane,1,1-dichloroethane and 2,2-dichloropropane 1,2-dibromo-3-chloropropane,dibromomethane,and 1,3-dichloropropane was 100.00%.Among the detected VOCs,ρ(1,3-dichloropropane)was the highest,with an average value of 2480.23 ng·L-1,ranging from 1135.59 to 3491.53 ng·L-1;ρ(chlorobenzene)was the lowest,with an average value of only 2.96 ng·L-1.The health and ecological risk assessment models recommended by the USEPA were used to assess the risk of VOCs.The results showed that each sampling site had no non-carcinogenic health risks,and the carcinogenic health risks were within an acceptable range;aquatic organisms had moderate ecological risks.

作者：

张坤锋赵少延孙兴滨付青昌盛樊月婷张茉莉杨光

Zhang Kunfeng;Zhao Shaoyan;Sun Xingbin;Fu Qing;Chang Sheng;Fan Yueting;Zhang Moli;Yang Guang(College of Forestry,Northeast Forestry University,Harbin 150040,China;National Environmental Protection Key Laboratory of Drinking Water Source Protection,National Engineering Laboratory for Lake Water Pollution Control and Ecological Restoration Technology,Chinese Research Academy of Environmental Science,Beijing 100012,China)

机构地区：

东北林业大学林学院中国环境科学研究院国家环境保护饮用水水源地保护重点实验室

出处：

《betway官方app 学报：自然科学版》 CAS 北大核心 2021年第5期74-82,共9页

Journal of Henan Normal University(Natural Science Edition)

基金：

中央级公益性科研院所基本科研业务专项(2020YSKY-009) 饮用水水源及重大工程项目区环境监管(2110302).

关键词：

挥发性有机物海拉尔河地下地表饮用水源污染特征风险评估

volatile organic compounds Hailar River underground surface drinking water source pollution characteristics risk assessment

分类号：

X53 [环境科学与工程—环境工程]