摘要
依据《土壤环境质量农用地土壤污染风险管控标准(试行)》,在大兴安岭松岭地区共采集601个土壤样品,检测土壤中的As、Cd、Cr、Hg、Pb等5种重金属元素含量,利用内梅罗指数法和地累积指数法,应用Excel、ArcGIS软件,研究该区域土壤中重金属的分布及污染程度.结果显示,研究区As、Cd、Cr、Hg、Pb含量平均值均低于国家标准的风险筛选值和污染管制值;Cd、Cr、Pb个别高值区超过国家标准的风险筛选值,但未超过污染管制值,存在一定的污染风险,属于尚清洁;As、Hg处于无污染水平.
According to the“Soil Environmental Quality Agricultural Land Soil Pollution Risk Control Standard(Trial)”,601 soil samples are collected in Songling area of Daxinganling Mountains to test the contents of 5 heavy metal elements of As,Cd,Cr,Hg and Pb in soil.The distribution and pollution degree of soil heavy metals in the area are studied based on Nemerow index and geoaccumulation index methods,assisted by Excel and ArcGIS software.The results show that the average contents of As,Cd,Cr,Hg and Pb are lower than the national standard risk screening values and pollution control values.In a few high value areas,the contents of Cd,Cr and Pb exceed the national standard risk screening values but not exceed the pollution control values,which has certain pollution risk,belonging to still clean level.As and Hg are at the pollution-free level.
作者
辛有涛
李蕴峰
陈卓
于俊博
李少文
XIN You-tao;LI Yun-feng;CHEN Zhuo;YU Jun-bo;LI Shao-wen(Harbin Natural Resources Comprehensive Survey Center,CGS,Harbin 150086,China)
出处
《地质与资源》
CAS
2024年第2期196-201,221,共7页
Geology and Resources
基金
中国地质调查局项目“大兴安岭山区生态地质调查”(DD20191014)
“松嫩平原绥化地区周边黑土地地表基质调查”(ZD20220103).
关键词
内梅罗指数法
地累积法
重金属
多因子综合评价模型
污染评价
Nemerow index
geoaccumulation index
heavy metal
multi-factor comprehensive evaluation model
pollution evaluation
