LUO Qing,SUN Li-na,ZHANG Yao-hua.Health Risk Assessment of Persistent Organochlorine Pollutants in Groundwater from Xihe River Area[J].Research of Soil and Water Conservation,2011,18(06):119-124.
细河流域地下水中持久性有机氯污染物的健康风险评价
- Title:
- Health Risk Assessment of Persistent Organochlorine Pollutants in Groundwater from Xihe River Area
- Keywords:
- Xihe River Area; groundwater; POCPs; CSOIL model; health risk assessment
- 分类号:
- X522;X820.4
- 摘要:
- 为了保障细河流域沿岸居民的生活用水安全，分析了地下水样品中15种持久性有机氯污染物(POCPs)的含量，运用荷兰公共卫生和环境国家研究院提出的土壤地下水污染现场暴露评价(CSOIL)模型对持久性有机氯污染物的健康风险进行了初步评价。结果表明：细河流域各采样点地下水中∑PCBs含量为0.08~5.89 ng/L，∑OCPs含量为0.17~21.2 ng/L，均低于各自生活饮用水卫生标准(GB5749-2006)中的浓度限值。作物食入、饮水等经口摄入途径是地下水环境健康风险评价中最主要的暴露途径，各采样点地下水中POCPs由作物食入、饮水、洗澡过程中呼吸吸入和皮肤接触4种暴露途径产生的总的平均个人年健康风险值为1.63×10-7~6.21×10-6 a-1，其健康风险排序为：翟家>富官>双树>前庙>土西>大兀拉>黄蜡坨>前余>大潘，均低于国际辐射防护委员会(ICRP)推荐的最大可接受值，基本属于可接受范围，但其健康危害已不容忽视。
- Abstract:
- In order to insure the safety of water used by the residents along the Xihe River Area, a preliminary assessment of the health risk caused by POCPs was performed by CSOIL Model of Holland RIVM. Results showed that the total level of 6 PCB(∑PCBs) in groundwater ranged from 0.08 to 5.89 ng/L, 9 OCP(∑OCPs) ranged from 0.17 to 21.2 ng/L, which were below the concentration limits in the Standards for Drinking Water Quality(GB5749-2006). Crop ingestion and drinking water are the most important exposure pathways in health risk assessment of groundwater. The total average indiviual annual health risks caused by crop ingestion, drinking water, inhalation and demal ingestion in the bathing were 1.63×10-7～6.21×10-6 per year. Health risks at 9 sampling points followed the order: Zhaijia>Fuguan>Shuangshu>Qianmiao>Tuxi >Dawula >Huanglatuo >Qianyu >Dapan. Though risks of PAHs at all sampling points were less than the recommended maximum acceptable value of the International Commission on Radiological Protection(ICRP), the health risks could not be ignored.
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备注/Memo
收稿日期:2011-4-19;改回日期:2011-6-9。
基金项目:国家自然科学基金重点项目(40930739);国家自然科学基金面上项目(41071304);国家重大水专项项目(2008ZX07208-003-004);国家自然科学基金青年项目(40901282)
作者简介:罗庆(1984- )，男，湖北随州人，硕士，主要从事环境分析化学与环境风险评价研究。E-mail：luoqingyt@126.com
通讯作者:孙丽娜(1960- )，女，辽宁沈阳人，博士后，教授，博导，主要从事