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| 某化工厂致癌有机污染物分层健康风险评估 |
| Layered Health Risk Assessment to Carcinogenic Organic Pollutants for A Chemical Contaminated Site |
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| DOI： |
| 中文关键词: 有机污染场地 健康风险评估 分层评估 风险控制值 |
| 英文关键词: Organic chemical contaminated site Health risk assessment Layered assessment Risk controlling targets |
| 基金项目:苏州市环保局科研基金资助项目（B20130601) |
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| 摘要点击次数: 1995 |
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| 中文摘要: |
| 以某化工厂污染场地为例，根据《污染场地风险评估技术导则》(HJ 25.3-2014)，运用HERA风险评估软件，将污染场地分为4层分别进行人体健康风险评估，结果表明：该场地存在高致癌风险，需要修复后才能开发再利用；关注污染物氯仿、苯，在地下0 m～3 m的风险控制值分别为0.07 mg/kg、0.83 mg/kg，在地下3 m～5 m的风险控制值分别为0.15 mg/kg、1.91 mg/kg，在地下5 m～9 m的风险控制值分别为0.40 mg/kg、5.05 mg/kg，在地下9 m～18 m的风险控制值分别为0.73 mg/kg、7.82 mg/kg。与以往计算单一的风险控制相比，分层计算污染物的风险控制值能有效减少治理土方量，降低治理成本。 |
| 英文摘要: |
| Taking a chemical plant as an example, according to the guideline of contaminated sites risk assessment technology (HJ 25.3-2014), the pollution area was divided into four levels to carry on the layered human health risk assessment by HERA software. The results showed that the ground there is high risk of cancer, and contaminated soil needs to be repaired before development and reutilization. As for the pollutants chloroform and benzene, the risk control targets were 0.07 mg/kg and 0.83 mg/kg for 0 m to 3 m under the ground, 0.15 mg/kg and 1.91 mg/kg for 3 m to 5 m under the ground, 0.40 mg/kg and 5.05 mg/kg for 5 m to 9 m under the ground, and 0.73 mg/kg and 7.82 mg/kg for 9 m to 18 m under the ground, respectively. Compared with the single risk calculation, the layered risk calculation method can reduce both the repairing earthwork quantity and the repairing cost. |
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