吉林省某垃圾填埋场地下水有机污染风险评价
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摘要
以吉林省某垃圾填埋场地下水为研究对象,监测其中的有机污染物,并进行风险评价。结果表明:(1)有机污染物总计检出18种,5种检出率大于50%。其中,三氯甲烷检出率最高,达到85.7%,质量浓度高达0.217mg/L,超过《生活饮用水卫生标准》(GB 5749—2006)限值(0.06mg/L)。(2)地下水污染指数表明,10种有机污染物具有高淋溶迁移性。(3)以三氯甲烷为典型污染物,14个采样点中,非致癌风险指数均未超过1,12个采样点致癌风险指数超过10~(-6),不在可接受范围。主要暴露途径为饮水摄入。
One of the landfills in Jilin province was taken as the object.Monitoring of organic pollutants and risk assessment were completed.The results showed that:(1)18 kinds of organic pollutants were detected,the detection rate of 5 organic pollutants was more than 50%.The highest detection rate of trichloromethane was 85.7%.And the mass concentration of trichloromethane in the landfill was as high as 0.217 mg/L,which exceeding the limit of"Hygienic standard for drinking water"(GB 5749-2006)(0.06 mg/L).(2)It was showed that 10 kinds of organic pollutants were high leaching mobility with Groundwater Pollution Index.(3)The trichloromethane was selected as the target pollutant.For the 14 monitored points,none of non-carcinogenic risk index was more than 1,but the carcinogenic risk index of 12 sampling points was more than 10~(-6),which was not within the acceptable range.The main route of exposure was drinking water.
One of the landfills in Jilin province was taken as the object.Monitoring of organic pollutants and risk assessment were completed.The results showed that:(1)18 kinds of organic pollutants were detected,the detection rate of 5 organic pollutants was more than 50%.The highest detection rate of trichloromethane was 85.7%.And the mass concentration of trichloromethane in the landfill was as high as 0.217 mg/L,which exceeding the limit of"Hygienic standard for drinking water"(GB 5749-2006)(0.06 mg/L).(2)It was showed that 10 kinds of organic pollutants were high leaching mobility with Groundwater Pollution Index.(3)The trichloromethane was selected as the target pollutant.For the 14 monitored points,none of non-carcinogenic risk index was more than 1,but the carcinogenic risk index of 12 sampling points was more than 10~(-6),which was not within the acceptable range.The main route of exposure was drinking water.
引文
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[11]蔡睿堃,邓玉,倪福全,等.农村饮用水水源氮污染及健康风险的时空变化特征研究---以名山区为例[J].四川大学学报(工程科学版),2015,47(增刊2):40-46.
[12]郑春苗,贝聂特.地下水污染物迁移模拟[M].北京:高等教育出版社,2009.
[2]王兰化,李明明,张莺,等.某废弃化工场地地下水有机污染健康风险评价[J].地质调查与研究,2012,35(4):293-298.
[3]张浩杰.垃圾填埋场对地下水的污染与防治[D].长春:吉林大学,2016.
[4]王力敏.北方垃圾填埋场渗漏对地下水污染的风险评价研究[D].北京:华北电力大学,2013.
[5]滕志坤,张颖,梁慧.黑龙江省垃圾填埋场地下水污染调查评价研究[J].环境科学与管理,2016,41(11):187-190.
[6]余璇,康亭,郑晓笛,等.陈家冲垃圾填埋场地下水环境健康风险评价[J].南水北调与水利科技,2017,15(5):82-88.
[7]BARBASH J,ROBERTS P V.Volatile organic chemical contamination of groundwater resources in the U.S.[J].Journal(Water Pollution Control Federation),1986,58(5):343-348.
[8]PETERSON L E,CUCINOTTA F A.Monte Carlo mixture model of lifetime cancer incidence risk from radiation exposure on shuttle and international space station[J].Mutation Research,1999,430(2):325-327.
[9]李亚松,费宇红,王昭,等.三氯甲烷在浅层地下水中的赋存特征及迁移淋溶性研究[J].环境污染与防治,2011,33(7):36-38.
[10]王昭.华北平原地下水质量评价及微量有机污染物淋溶迁移性研究[D].北京:中国地质科学院,2008.
[11]蔡睿堃,邓玉,倪福全,等.农村饮用水水源氮污染及健康风险的时空变化特征研究---以名山区为例[J].四川大学学报(工程科学版),2015,47(增刊2):40-46.
[12]郑春苗,贝聂特.地下水污染物迁移模拟[M].北京:高等教育出版社,2009.