Plastic shed production systems: The migration of heavy metals from soil to vegetables and human health risk assessment

doi:10.1016/j.ecoenv.2021.112106

	Plastic shed production systems: The migration of heavy metals from soil to vegetables and human health risk assessment
	Meng, Min 1,2,3; Yang, Linsheng 1,2; Wei, Binggan 1; Cao, Zhiqiang 1; Yu, Jiangping 1; Liao, Xiaoyong 1,3
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2021-06-01
卷号	215 页码:10
关键词	DGT Heavy metals Soil under plastic shed Bioavailability Mobility Health risk assessment
ISSN号	0147-6513
DOI	10.1016/j.ecoenv.2021.112106
通讯作者	Liao, Xiaoyong(liaoxy@igsnrr.ac.cn)
英文摘要	Plastic shed production system (PSPS) provide abundant vegetable products for human consumption. Comprehensive and accurate heavy metal (HM) risk assessment of soil and vegetable under plastic sheds is crucial for human health. Pollution assessment, bioavailability and mobility evaluation and health risk assessment of Cd, Cr, Cu, Zn Ni, Pb, and As were performed in a presentative Plastic shed production system. The concentrations of the Cd, Cu and Zn exceeded their background value. Positive I-geo values suggested that soil under plastic sheds was widely contaminated with Cd. The bioavailability of heavy metals in soils was evaluated using DTPA extraction and DGT methods. The results of both methods demonstrated that Cd, Cu, and Zn have high bioavailability, especially Cd. Analogically, the results of mobility assignment based on DIFS showed that Cd has a high migration risk due to the large available pool. Based on specific cultivation and management patterns of plastic shed production system, pH reduction and salt and nutrient accumulation may increase the heavy metals migration risk in soil under plastic sheds, while a high organic matter content may reduce the heavy metals migration risk. The average concentrations of Cd, Cr, Cu, Zn, Ni, Pb, and As in vegetables were 0.023, 0.226, 0.654, 2.984, 0.329, 0.041, and 0.010 mg/kg, respectively. All samples were well below the threshold. The order of target hazard quotient of different heavy metals caused by vegetable consumption was Cd > Cr > As > Cu, Ni, Pb, Zn, and the average total hazard index value was below 1, which demonstrated that risk of vegetable consumption in the study area. However, due to its high concentration and transfer coefficient in spinach, Cd might pose a health risk to humans, which requires special attention. In this study, Cd caused a significant issue than other HMs, whether pollution level, health risk and migration risk. DGT and DIFS can be used as an effective evaluation tool in the research of controlling heavy metals migration in soil-crop systems.
资助项目	National Key Research and Development Program of China[2016YFD0801004] ; National Key Research and Development Program of China[2017YFD0800900] ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of the People?s Republic of China[2015FY111300]
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000637942500004
资助机构	National Key Research and Development Program of China ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of the People?s Republic of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161750]
专题	中国科学院地理科学与资源研究所
通讯作者	Liao, Xiaoyong
作者单位	1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Key Lab Environm Damage Assessment & Reme, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Meng, Min,Yang, Linsheng,Wei, Binggan,et al. Plastic shed production systems: The migration of heavy metals from soil to vegetables and human health risk assessment[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2021,215:10.
APA	Meng, Min,Yang, Linsheng,Wei, Binggan,Cao, Zhiqiang,Yu, Jiangping,&Liao, Xiaoyong.(2021).Plastic shed production systems: The migration of heavy metals from soil to vegetables and human health risk assessment.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,215,10.
MLA	Meng, Min,et al."Plastic shed production systems: The migration of heavy metals from soil to vegetables and human health risk assessment".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 215(2021):10.