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| 下辽河平原地下水健康风险评价 |
| Health Risk Assessment of Groundwater in Lower Liaohe River Plain |
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| DOI： |
| 中文关键词: 地下水 化学污染 健康风险评价 下辽河平原 |
| 英文关键词: Groundwater Chemical contamination Health risk assessment The Lower Liaohe River Plain |
| 基金项目:国家水体污染控制与治理科技重大专项基金资助项目（2014ZX07201-010） |
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| 中文摘要: |
| 通过在下辽河平原布设217个地下水采样点，调查监测其中典型的无机、有机化合物，并应用美国EPA健康风险评价模型进行风险评价。结果表明：该区域地下水中无机化合物较有机化合物浓度水平高；无机化合物中NO-3、NO-2、Mn及As浓度较高，有机化合物中γ-六六六浓度较高。所有监测的无机、有机化合物通过饮用水途径引起的致癌风险高于非致癌风险；所有化合物的非致癌风险数值均小于ICRP推荐的最大可接受风险水平10-6a-1，As致癌风险最大值为6.15×10-5 a-1，超过EPA推荐的可接受值 5.0×10-5 a-1。 |
| 英文摘要: |
| In this study, 217 groundwater sampling sites were set around the Lower Liaohe River Plain to monitor the concentration of inorganic and organic compounds, and the health risk of these compounds in groundwater were evaluated by the US EPA health risk assessment model. The results showed the concentration of inorganic compounds were higher than that of organic compounds, the concentrations of NO-3,NO-2,Mn and As in inorganic compounds were relatively high and the concentration of γ BHC in organic compounds was relatively high. The results of environmental health risk assessment indicated that the carcinogenic risk induced through drinking water pathway was higher than that of non carcinogenic risk；non carcinogenic risks of all compounds were lower than the standard recommended by ICRP. The highest carcinogenic risk of As was 6.15×10-5 a-1, which exceeded the acceptable value of 5.0×10-5 a-1 recommended by EPA. |
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