上海闵行部分地区土壤中铊的背景值研究

Research on background level of thallium in soil in part of Minhang District Shanghai

铊作为一种剧毒重金属,在土壤中的含量值得引起关注。《土壤环境质量建设用地土壤污染风险管控标准(试行)》(GB 36600—2018)中未对于土壤中铊的筛选值做出规定,但我国部分省市已制定了土壤中铊的相关地方标准。本文根据实验室实测数据探讨了上海闵行部分地区土壤中铊的背景值,同时依据《建设用地土壤污染风险评估技术导则》(HJ 25.3—2019)计算出土壤中铊的风控值,从而对上海市闵行部分地区土壤中铊含量的风险进行初步判断。

As a kind of toxic heavy metal,concentration of thallium in soil needs to be concerned.Screening level of thallium is not stipulated in “Soil Environmental Quality Risk Control Standard of Soil Contamination of Development Land(GB 36600—2018)”,though included in some local standards developed by some cities or provinces.This article introduces background level of thallium in soil in part of Minhang District,Shanghai according to testing data from qualified labs,while calculated risk control level of thallium in soil based on “Technical Guidelines for Risk Assessment of Soil Contamination of Land for Construction(HJ 25.3—2019)”.Thus,primary conclusion on risk of thallium in soil in part of Minhang District could be deducted.