Health Risks Assessment of Heavy Metal Pollution in the Soil-Crop System from an E-Waste Dismantling Area  

作　　者：Shengting Rao Jia Fang Keli Zhao 

机构地区：[1]Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province,Zhejiang Agriculture and Forestry University,Hangzhou,311300,China

出　　处：《Phyton-International Journal of Experimental Botany》2022年第12期2669-2685,共17页国际实验植物学杂志（英文）

基　　金：supported by the National College Students’Innovation and Entrepreneurship Training Program(202110341014).

摘　　要：Soil is an essential resource for agricultural production.In order to investigate the pollution situation of heavy metals in the soil-crop system in the e-waste dismantling area,the crop and soil samples(226 pairs,including leaf vegetables,solanaceous vegetables,root vegetables,and fruits)around the e-waste dismantling area in southeastern Zhejiang Province were collected.The concentrations of Cd,Cu,Pb,and Cr were determined.The average concentrations of Cd,Cu,Pb,and Cr in soils were 0.94,107.79,80.28,and 78.14 mg kg-1,respectively,and their corresponding concentrations in crops were 0.024,0.7,0.041,and 0.06 mg kg-1,respectively.The transfer capacity of leaf vegetables was significantly higher than that of non-leaf vegetables,and the accumulation of four heavy metals in crops tended to be Cd>Cu>Cr/Pb.The pollution index’s results revealed that the soil pollution degree under different land uses ranked as root vegetables soil>leaf vegetables soil>solanaceous vegetables soil>fruit soil.The carcinogenic and non-carcinogenic risks of heavy metal exposure were ranked as food intake>accidental ingestion>dermal contact>inhalation.The comprehensive non-carcinogenic risk was ranked as Cr>Cd>Pb/Cu.Our results could be used to provide useful information for further crop cultivation layout in the study area,which can guarantee the local residents’health and food safety.

关 键 词：E-waste dismantling area soil-crop system heavy metal pollution risk assessment 

分 类 号：Q94[生物学—植物学]