摘要
对河南省中部某历史遗留工业场地的土壤污染情况做了研究。结果表明:土壤中有机物检出因子18项均无超标;Zn和Cr最大值均超过河南省住宅及公共用地筛选值,其余重金属未超标。风险评估表明,在第一类用地和第二类用地中Cd的致癌风险分别为2.70×10^(-8)和1.42×10^(-8),均小于可接受致癌风险10^(-6);在第一类用地和第二类用地中Cd、Cu、Hg、Zn危害熵范围分别为0.023~0.542和0.006~0.060,均小于可接受非致癌危害熵。Cd、Cu、Hg、Zn风险值均在可接受范围内。
The soil pollution of a historical industrial site in central Henan Province was studied.The results showed that none of the 18 detection factors of organic matter in the soil exceeded the standard;the maximum values of Zn and Cr both exceeded the selected values for residential and public land in Henan,and the remaining heavy metals did not exceed the standard.The risk assessment showed that the carcinogenic risk of Cd in the first type of land and the second type of land were 2.70×10^(-8) and 1.42×10^(-8),respectively,which were less than the acceptable carcinogenic risk of 10^(-6);the hazard entropies of Cd,Cu,Hg,and Zn in Class II land and Class II land were 0.023 to 0.542 and 0.006 to 0.060,which were all less than the acceptable non-carcinogenic hazard entropy.The risk values of Cd,Cu,Hg,and Zn are all within an acceptable range.
作者
林斌
Lin Bin(Fujian Environmental Protection Design Institute Co.,Ltd.Fuzhou 350002,China)
出处
《皮革制作与环保科技》
2021年第24期11-13,共3页
Leather Manufacture and Environmental Technology
关键词
重金属
有机物
土壤
污染场地调查
风险评估
heavy metals
organic matter
soil
polluted site survey
risk assessment
