镇江市某矿段土壤重金属污染评价  

Evaluation of heavy metal pollution in soil of a mining section in Zhenjiang

作　　者：梅雯 秦勤 杨宇炳 刘建 MEI Wen;QIN Qin;YANG Yubing;LIU Jian(Field Monitoring Section,Zhenjiang Environmental Monitoring Center of Jiangsu Province,Zhenjiang 212004,China;Water Environment Monitoring Section,Zhenjiang Environmental Monitoring Center of Jiangsu Province,Zhenjiang 212004,China;Operation and Maintenance Division,Jiangsu Suli Environmental Technology Co.,Ltd,Nanjing 210019,China)

机构地区：[1]江苏省镇江环境监测中心现场监测科,江苏镇江212004 [2]江苏省镇江环境监测中心土壤环境监测科,江苏镇江212004 [3]江苏省苏力环境科技有限责任公司运行维护事业部,江苏南京210019

出　　处：《镇江高专学报》2024年第2期96-100,共5页Journal of Zhenjiang College

摘　　要：矿产资源的开发和利用不可避免会带来环境和灾害问题,其中重金属污染是主要环境问题之一。镇江市某矿段开采矿种为铜矿石和铁矿石。铜矿石中伴生金、银、铅、锌等元素。研究矿区内土壤重金属元素分布特征,评价污染状况,掌握调查区表层土壤中重金属污染情况,为环保决策者提供依据。调查显示,铜、镉、锌含量高,尤其铜的污染最严重,这与矿区含铜量最多相一致。相关性分析显示,铜、镉、锌密切相关,来源相同,均与采矿活动有关。矿区重金属污染有随矿山距离增加而降低的趋势,由内梅罗综合指数可知,调查区内农田已存在重金属污染,且部分点位污染程度较高,为重度污染。In the development and utilization of mineral resources,it is inevitable to bring many environmental and disaster problems,among which heavy metal pollution is one of the main environmental problems.A certain mining section in Zhenjiang mines copper sulfur ore and iron ore.Copper ore is accompanied by elements such as gold,silver,lead,and zinc.This thesis studies the distribution characteristics of heavy metal elements in the soil of the mining area,evaluates its pollution status,and further grasps the actual situation of heavy metal pollution in the surface soil of the investigation area,providing effective basis for environmental decision-makers.According to the survey,copper,cadmium,and zinc have the highest soil content in the survey area,with copper pollution being the most severe.This is consistent with the highest copper content in the mining area itself.Through correlation analysis,these three are closely related with the mining activities and share the same source.The heavy metal pollution in mining areas tends to decrease with the increase of mining distance.According to the Nemero index method,heavy metal pollution already exists in the farmland in the survey area,and some points have high levels of pollution,indicating severe pollution.

关 键 词：重金属 内梅罗污染指数 重度污染 

分 类 号：X53[环境科学与工程—环境工程]