安全与环境工程2024，Vol.31Issue(4)：223-235,13.DOI:10.13578/j.cnki.issn.1671-1556.20221525
遵义市典型锰矿区土壤重金属污染空间分布特征及生态风险评价
Spatial distribution characteristics and ecological risk assessment of heavy metals in soils of typical manganese mining area in Zunyi City
摘要
Abstract
Collecting the soil samples(including sediments and slags)of a typical manganese mining area in Zunyi City,Guizhou Province,the contents of 9 heavy metals,including Cr,Ni,Cu,Cd,Pb,Fe,Hg,As and Mn,were measured and analyzed.The Inverse Distance Weight(IDW)was used in ArcGIS to reveal the spatial distribution characteristics of these heavy metals,the Geoaccumulation Index(Igeo)and Potential Ecological Risk Index(PERI)were conducted for pollution status assessment and potential ecological risk assessment,and the sources of heavy metal pollution were analyzed at last.The results show that the aver-age contents of Hg,Mn and Cd in the sediments of the study area are 44,16 and 5 times of the soil back-ground values in Guizhou Province,respectively.The individual potential ecological risk coefficient of Hg and Cd is the highest,which demonstrates that these 2 heavy metals are the main ecological risk factors in the study area.Hg in the sediments is heavily or seriously contaminated,and 80％of the sampling areas have considerable or high potential ecological risks.关键词
重金属污染/土壤/空间分布/生态风险/锰矿区Key words
heavy metal pollution/soil/spatial distribution/ecological risk/manganese mining area分类
资源环境引用本文复制引用
谢配红,补建伟,徐庆方,肖春山,黄胤赫..遵义市典型锰矿区土壤重金属污染空间分布特征及生态风险评价[J].安全与环境工程,2024,31(4):223-235,13.基金项目
贵州省地勘基金项目(黔地矿科合[2016]15号) （黔地矿科合[2016]15号）
贵州省一○六地质大队地质科研项目(黔地矿106科合[2021]5号) （黔地矿106科合[2021]5号）
国家自然科学基金项目(41907177) （41907177）
