四川某地工业集中区周边农用地重金属污染评价  

Evaluation of Heavy Metal Pollution in Agricultural Land around an Industrial Concentration Area in Sichuan Province

作　　者：冯振华 魏菲[1,2] 周梅竹 裴玲芳 李强 张妮[1,2] Feng Zhenhua;Wei Fei;Zhou Meizhu;Pei Lingfang;Li Qiang;Zhang Ni(Chengdu Analytical &Testing Center, Sichuan Bureau of Geology & Mineral Resources (Chengdu Mineral Resources Supervision and Testing Center, Ministry of Landand Resources) Chengdu 610081;Evaluation and Utilization of Strategic Rare Metals and Rare Earth Resource Key Laboratory of Sichuan Province;College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China)

机构地区：[1]四川省地质矿产勘查开发局成都综合岩矿测试中心,四川成都610081 [2]四川省地质矿产勘查开发局成都综合岩矿测试中心(国土资源部成都矿产资源监督检测中心)稀有稀土战略资源评价与利用四川省重点实验室,四川成都610081 [3]成都理工大学材料与化学化工学院,四川成都610059

出　　处：《广东化工》2019年第17期220-222,共3页Guangdong Chemical Industry

基　　金：四川省科技计划项目,页岩气开发土壤污染风险评估与联合修复技术研究(重大前沿)(2018JY0017)

摘　　要：选取四川西南某地工业区周边的农田土壤进行研究,采集了31个土壤样品进行重金属含量分析,采用单因子污染指数法和地累积指数法对土壤中重金属的污染状况进行评价。单因子指数法评价结果显示:研究区土壤中土壤重金属污染程度为Cd>Zn>Cu>Cr>Pb>Ni>As>Hg。地累积指数法评价结果显示:土壤重金属污染强度由强到弱依次为:Zn>Cd>Cr>Ni>Pb>As>Cu>Hg,通过相关性分析结果表明Cd-Pb-Zn相关系数均大于0.88,三种元素之间呈高度相关,其可能具有相同来源。以上两种不同评价方法结果均显示,调查区污染程度较高的地区主要分布在EBT10、EBT14、EBT18、EBT22,为重点污染区域,结合点位分布图可以看出,污染程度严重区域与周边企业相邻,由此推断研究区土壤重金属污染可能受工业区的影响,主要污染因子为Cd、Pb、Zn、Cr。This paper studied the agricultural land around a certain industrial zone in the southwest of Sichuan province, collected 31 soil samples for heavy metal content analysis, and evaluated the heavy metal pollution status in soil by the single factor index evaluation method and Geo-accumulation index method. The single factor index evaluation method and Geo-accumulation index method showed that the degree of heavy metal pollution in the soil was Cd>Zn>Cu>Cr>Pb>Ni>As>Hg and Zn>Cd>Cr>Ni>Pb>As>Cu>Hg,respectively. The correlation analysis results show that the correlation coefficients of Cd-Pb-Zn are greater than 0.88, and these three heavy metals are highly correlated, which may have the same source. The two different evaluation method results showed that EBT10, EBT14, EBT18, EBT22 a total of four point in the survey area of high pollution area, combining with the stationing figure can be seen that the degree of polluted area and the surrounding adjacent enterprises, thus concluded that the soil heavy metal pollution in the study area may be affected by industrial zone, the main pollution factor for Cd, Pb, Zn, Cr.

关 键 词：农用地 重金属 土壤 评价 

分 类 号：TQ[化学工程]