露天铅锌采矿区周边土壤重金属污染空间分布特征研究  

Spatial Distribution Characteristics of Heavy Metal Pollution in Soil Around Open-pit lead-zinc Mining Areas

作　　者：付小东 王宗元 孙聪伍 姚叶婷 Fu Xiaodong;Wang Zongyuan;Sun Congwu;Yao Yeting(Yunnan Nonferrous Geological Bureau 308 Team,Kunming 650000,China)

机构地区：[1]云南省有色地质局三0八队,云南昆明650000

出　　处：《环境科学与管理》2025年第2期56-61,共6页Environmental Science and Management

摘　　要：为了研究露天铅锌采矿区周边土壤重金属污染空间分布特征,在选取露天铅锌采矿区特征污染物实施分析时,选定Ni、Cu、Hg、Zn、As、Pb、Cd这七种露天铅锌采矿区内较为典型的土壤特征重金属污染元素。对于设置的表层采样点,实施土壤样品采样以及消解预处理,并使用原子荧光法与电感耦合-王水提取等离子体质谱法实施重金属含量检测,利用Sufer.0地学软件实施Kriging插值以生成分析结果图。结果显示,重金属污染元素的最高值位于露天铅锌采矿区边缘,并向周围扩散逐渐降低。在垂直方向上,重金属污染元素也逐步向周围扩散,并且浓度逐渐降低。To study the spatial distribution characteristics of heavy metal pollution in the soil around open-pit lead-zinc mining areas,seven typical soil characteristic heavy metal pollutants were selected:Ni,Cu,Hg,Zn,As,Pb,and Cd.Surface sampling points were set up,and soil sample collection and digestion pretreatment were performed.Atomic fluorescence spectrometry and inductively coupled plasma mass spectrometry with aqua regia extraction were used to detect the heavy metal content.Surfer.0 geospatial software was employed to implement Kriging interpolation and generate analysis result maps.The results revealed that the highest values of heavy metal pollutants were located at the edges of the open-pit lead-zinc mining areas,gradually decreasing towards the surrounding areas.In the vertical direction,the pollutants also spread gradually towards the surroundings,with decreasing concentrations.Overall,zinc exhibited the highest concentration.

关 键 词：土壤重金属污染 露天铅锌采矿区 土壤样品取样器 空间分布特征 

分 类 号：X53[环境科学与工程—环境工程]