| 土壤环境重金属污染风险的综合评价模型 |
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| 引用本文： | 王晓钰.土壤环境重金属污染风险的综合评价模型[J].环境工程,2013,31(2):115-118. |
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| 作者姓名： | 王晓钰 |
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| 作者单位： | 新乡学院化学与化工学院,河南新乡453003;湖南大学环境科学与工程学院,长沙410082 |
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| 摘 要： | 综合考虑了土壤环境中重金属的总量富集污染及各重金属在土壤中不同赋存形态的生物有效性差异,将风险评估指数(RAC)嵌入地累积指数模型,建立了土壤环境重金属污染风险的综合评价模型。应用所建模型评价某典型污灌区土壤中各重金属污染的风险程度,通过分析评价结果以及和同类模型评价结果的对比,所建模型更全面、真实地表征了该区域土壤重金属污染的风险水平,为我国土壤资源管理和优先控制因子的选取提供了新思路。
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| 关 键 词： | 土壤 重金属 风险评估指数(RAC) 生物可利用性 |
AN INTEGRATED MODEL FOR ASSESSING THE RISK OF HEAVY METALS POLLUTION IN SOIL ENVIRONMENT |
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| Wang Xiaoyu.AN INTEGRATED MODEL FOR ASSESSING THE RISK OF HEAVY METALS POLLUTION IN SOIL ENVIRONMENT[J].Environmental Engineering,2013,31(2):115-118. |
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| Authors: | Wang Xiaoyu |
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| Institution: | Wang Xiaoyu1,2(1.College of Chemistry and Chemical Engineering,Xinxiang University,Xinxiang 453003,China; 2.College of Environmental Science and Engineering,Hunan University,Changsha 410082,China) |
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| Abstract: | In consideration of the pollution degree with gross content of heavy metals and the corresponding bioavailability of different chemical speciations of heavy metal,an integrated model for assessing the risk of soil environmental pollution was established based on index of geo-accumulation and risk assessment code(RAC).As a study case,the soil pollution of heavy metal in a typical sewage irrigation area was put forward to test and verify the developed integrated assessment model.In a sense,according to the comparative analysis among the results of other common assessment methods,the developed model could provide new ideas and methods for the soil resource management and the selecting of priority control section of the case region. |
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| Keywords: | soil heavy metals risk assessment code(RAC) bioavailability |
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