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滹沱河冲洪积扇地下水中挥发性有机物的分布特征与健康风险

昌盛 赵兴茹 刘琰 耿梦娇 王山军

昌盛, 赵兴茹, 刘琰, 耿梦娇, 王山军. 滹沱河冲洪积扇地下水中挥发性有机物的分布特征与健康风险[J]. 环境科学研究, 2016, 29(6): 854-862.
引用本文: 昌盛, 赵兴茹, 刘琰, 耿梦娇, 王山军. 滹沱河冲洪积扇地下水中挥发性有机物的分布特征与健康风险[J]. 环境科学研究, 2016, 29(6): 854-862.
CHANG Sheng, ZHAO Xingru, LIU Yan, GENG Mengjiao, WANG Shanjun. Distribution Characteristics and Health Risk Assessment of Volatile Organic Compounds in Groundwater of Hutuo River Pluvial Fan[J]. Research of Environmental Sciences, 2016, 29(6): 854-862.
Citation: CHANG Sheng, ZHAO Xingru, LIU Yan, GENG Mengjiao, WANG Shanjun. Distribution Characteristics and Health Risk Assessment of Volatile Organic Compounds in Groundwater of Hutuo River Pluvial Fan[J]. Research of Environmental Sciences, 2016, 29(6): 854-862.

滹沱河冲洪积扇地下水中挥发性有机物的分布特征与健康风险

基金项目: 国家环境保护公益性行业科研专项(201409029);国家水体污染控制与治理科技重大专项(2014ZX07405-001)

Distribution Characteristics and Health Risk Assessment of Volatile Organic Compounds in Groundwater of Hutuo River Pluvial Fan

  • 摘要: 为研究滹沱河冲洪积扇地下水中VOCs(volatile organic compounds,挥发性有机物)的污染现状,于2014年9月在滹沱河冲洪积扇地区采集44个地下水样品,采用吹扫捕集-气相色谱-质谱法分析了25种VOCs的质量浓度,并对其分布特征和健康风险进行了讨论. 结果表明,研究区44个采样点均有VOCs检出,其中氯仿、二氯甲烷检出率为100%. 检出的VOCs中,ρ(氯仿)平均值最高,范围为15.4~52 195.9 ng/L;其次为ρ(四氯化碳)(nd~17 145.8 ng/L). VOCs的分布与工业布局密切相关,受制药企业排污影响,ρ(氯仿)、ρ(苯乙烯)、ρ(苯)、ρ(甲苯)、ρ(乙苯)、ρ(二甲苯)等均在G2-1采样点最高;而在石家庄石化炼制产业密集区域,地下水中检出的VOCs种类、检出频次及含量均较高. 研究显示,研究区地下水VOCs的非致癌风险指数介于1.8×10-5~4.7×10-2之间,均远小于1;G2-22采样点地下水VOCs的致癌风险指数最高,为1.1×10-5,处于可接受水平,但四氯化碳的污染现状值得关注.

     

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出版历程
  • 收稿日期:  2016-01-09
  • 修回日期:  2016-03-14
  • 刊出日期:  2016-06-25

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