| 村镇生活垃圾重金属含量及其土地利用中的环境风险分析 |
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| 引用本文： | 王瑜堂,张军,岳波,王敦球,於俊颖,黄启飞,吴小卉,靳琪.村镇生活垃圾重金属含量及其土地利用中的环境风险分析[J].农业环境科学学报,2017,36(8):1634-1639. |
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| 作者姓名： | 王瑜堂 张军 岳波 王敦球 於俊颖 黄启飞 吴小卉 靳琪 |
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| 作者单位： | 1. 桂林理工大学环境科学与工程学院,广西 桂林 541004;中国环境科学研究院,北京 100012;2. 桂林理工大学环境科学与工程学院,广西 桂林,541004;3. 中国环境科学研究院,北京,100012 |
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| 基金项目： | 国家科技支撑计划课题（2014BAL02B01） |
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| 摘 要： | 对全国12个省份72个典型村镇产生的生活垃圾进行采样调查,系统分析了我国村镇生活垃圾的重金属含量及其土地利用的环境风险。结果表明:我国典型村镇生活垃圾中重金属Hg、Pb、Cd、Cr、Cu和Zn的含量分别为(0.74±0.48)、(21.80±17.61)、(3.36±11.01)、(108.63±84.01)、(36.83±10.91)、(80.09±42.24)mg·kg~(-1);依据《城镇垃圾农用控制标准》,Hg、Pb、Cd、Cr的超标率分别是1.74%、3.44%、14.29%、2.09%。村镇生活垃圾土地利用的重金属环境风险评估表明:重金属单因子污染指数大小顺序为CdHgCrCuZnPb,其中Cd和Hg分别为重度和轻度污染;重金属内梅罗综合污染指数为4.08(重度污染),Cd和Hg的贡献最大;重金属潜在生态风险程度依次为CdHgCuPbCrZn,综合潜在生态风险等级为强生态危害。
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| 关 键 词： | 村镇生活垃圾 重金属含量 潜在生态风险 |
| 收稿时间： | 2016/12/12 0:00:00 |
Heavy metal content of the rural solid waste and its land utilization environmental risk analysis |
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| WANG Yu-tang,ZHANG Jun,YUE Bo,WANG Dun-qiu,YU Jun-ying,HUANG Qi-fei,WU Xiao-hui and JIN Qi.Heavy metal content of the rural solid waste and its land utilization environmental risk analysis[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2017,36(8):1634-1639. |
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| Authors: | WANG Yu-tang ZHANG Jun YUE Bo WANG Dun-qiu YU Jun-ying HUANG Qi-fei WU Xiao-hui and JIN Qi |
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| Institution: | College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;Research Academy of Environmental Sciences, Beijing 100012, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China,Research Academy of Environmental Sciences, Beijing 100012, China,College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China,Research Academy of Environmental Sciences, Beijing 100012, China,Research Academy of Environmental Sciences, Beijing 100012, China,Research Academy of Environmental Sciences, Beijing 100012, China and Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | In this study, living solid waste of 72 typical villages and towns in 12 provinces was investigated, and its heavy metal content and environmental risk from land utilization were analyzed. The results showed that the heavy metals contents of Hg, Pb, Cd, Cr, Cu, and Zn in the living solid waste were(0.74±0.48),(21.80±17.61),(3.36±11.01),(108.63±84.01),(36.83±10.91), and(80.09±42.24)mg·kg-1, re-spectively. Compared with"the pollution control standard of municipal solid waste agricultural utilization,"the heavy metal contents of Hg, Pb, Cd, and Cr exceeded the rates of 1.74%, 3.44%, 14.29%,and 2.09%, respectively. The environmental risk assessment of living solid waste land utilization showed that the order of the heavy metal single factor pollution indices were:Cd>Hg>Cr>Cu>Zn>Pb, of which the lev-els of Cd and Hg were classified as severe pollution and mild pollution, respectively. The Nemero comprehensive pollution index of heavy metals was 4.08(indicating severe pollution), in which Cd and Hg had the largest contribution. The order of potential ecological risk of heavy metals was:Cd>Hg>Cu>Pb>Cr>Zn, indicating strong comprehensive potential ecological risk. |
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| Keywords: | rural living solid waste heavy metal content potential ecological risk |
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