Assessing cadmium exposure risks of vegetables with plant uptake factor and soil property

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Assessing cadmium exposure risks of vegetables with plant uptake factor and soil property
	Yang, Yang; Chang, Andrew C.; Wang, Meie; Chen, Weiping; Peng, Chi
刊名	ENVIRONMENTAL POLLUTION
	2018-07-01
卷号	238 页码:263-269
关键词	Risk assessment Soil property normalization Cd bioavailability Probabilistic analysis Trade-off relationship
ISSN号	0269-7491
文献子类	Article
英文摘要	Plant uptake factors (PUFs) are of great importance in human cadmium (Cd) exposure risk assessment while it has been often treated in a generic way. We collected 1077 pairs of vegetable-soil samples from production fields to characterize Cd PUFs and demonstrated their utility in assessing Cd exposure risks to consumers of locally grown vegetables. The Cd PUFs varied with plant species and pH and organic matter content of soils. Once normalized PUFs against soil parameters, the PUFs distributions were log-normal in nature. In this manner, the PUFs were represented by definable probability distributions instead of a deterministic figure. The Cd exposure risks were then assessed using the normalized PUF based on the Monte Carlo simulation algorithm. Factors affecting the extent of Cd exposures were isolated through sensitivity analyses. Normalized PUF would illustrate the outcomes for uncontaminated and slightly contaminated soils. Among the vegetables, lettuce was potentially hazardous for residents due to its high Cd accumulation but low Zn concentration. To protect 95% of the lettuce production from causing excessive Cd exposure risks, pH of soils needed to be 5.9 and above. (C) 2018 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40467]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Yang, Yang,Chang, Andrew C.,Wang, Meie,et al. Assessing cadmium exposure risks of vegetables with plant uptake factor and soil property[J]. ENVIRONMENTAL POLLUTION,2018,238:263-269.
APA	Yang, Yang,Chang, Andrew C.,Wang, Meie,Chen, Weiping,&Peng, Chi.(2018).Assessing cadmium exposure risks of vegetables with plant uptake factor and soil property.ENVIRONMENTAL POLLUTION,238,263-269.
MLA	Yang, Yang,et al."Assessing cadmium exposure risks of vegetables with plant uptake factor and soil property".ENVIRONMENTAL POLLUTION 238(2018):263-269.