| 典型地区农用地污染调查及风险管控标准探讨 |
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| 引用本文： | 于洋,刘文清,许人骥,张霖琳,孙聪,魏复盛.典型地区农用地污染调查及风险管控标准探讨[J].中国环境监测,2019,35(3):1-7. |
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| 作者姓名： | 于洋 刘文清 许人骥 张霖琳 孙聪 魏复盛 |
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| 作者单位： | 中国科学院合肥物质科学研究院安徽光机所;中国科学技术大学;中国环境监测总站国家环境保护环境监测质量控制重点实验室 |
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| 基金项目： | 2016年国家重点研发计划项目(2016YFC0500205)子课题:生态质量综合评价与生态保护绩效考核方法研究 |
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| 摘 要： | 针对《土壤污染风险管控标准——农用地土壤污染风险管控标准》(GB 15618—2018),提出以土壤中全量浓度筛选值和管控值作为衡量农用地土壤污染风险管控的标准,对湖南省部分稻田农用地土壤及点对点稻米样品中镉、铅、砷、汞的总量和有效态浓度及稻米中含量进行监测,根据重金属总量浓度分为低风险、中风险、高风险3组。结果显示:(1)土壤及稻米中镉含量基本为随着风险级别的升高而增加,铅、砷在土壤和稻米中含量无规律性结果,汞监测结果均为未检出。(2)低风险组稻米镉超标率为12. 0%,高风险组稻米镉达标率为33. 3%,表明利用总量浓度对农用地土壤潜在风险进行分组存在一定的局限性。(3)依据4种重金属在土壤中总量及稻米(早稻)中含量情况,对风险级别进行调整并综合判断:有58个样品为低风险组,占样品总数的68. 2%,超标率为零;有15个样品为中风险组,占样品总数的17. 7%,超标率为80. 0%;有12个样品为高风险组,占样品总数的14. 1%,超标率为100. 0%。调整后评价结果与上述标准的划分目标更接近,能够提高上述标准的准确性和实用性。
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| 关 键 词： | 农用地 土壤重金属 有效态 稻米中重金属 风险评价 |
| 收稿时间： | 2018/11/9 0:00:00 |
| 修稿时间： | 2019/3/14 0:00:00 |
Investigation of Agricultural Land Pollution in Typical Areas and Discussion on Risk Control Standards |
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| YU Yang,LIU Wenqing,XU Renji,ZHANG Linlin,SUN Cong and WEI Fusheng.Investigation of Agricultural Land Pollution in Typical Areas and Discussion on Risk Control Standards[J].Environmental Monitoring in China,2019,35(3):1-7. |
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| Authors: | YU Yang LIU Wenqing XU Renji ZHANG Linlin SUN Cong and WEI Fusheng |
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| Institution: | Hefei Institute of Physical Sciences,Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China ;University of Science and Technology of China, Hefei 230026, China ;State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012 , China,Hefei Institute of Physical Sciences,Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China ;University of Science and Technology of China, Hefei 230026, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012 , China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012 , China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012 , China and State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012 , China |
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| Abstract: | |
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| Keywords: | agricultural land heavy metal in soil available contents heavy metal in rice risk evaluation |
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