Phthalate esters in soil, plastic film, and vegetable from greenhouse vegetable production bases in Beijing, China: Concentrations, sources, and risk assessment

文献类型： 外文期刊

第一作者： Li, Cheng

作者： Li, Cheng;Chen, Jiayi;Wang, Jihua;Han, Ping;Luan, Yunxia;Ma, Xupu;Lu, Anxiang;Li, Cheng;Chen, Jiayi;Luan, Yunxia;Lu, Anxiang;Lu, Anxiang

作者机构：

关键词： Greenhouse vegetable production;Phthalate esters;Plastic film;Risk assessment

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： The increased use of plastic film in greenhouse vegetable production (GVP) could result in phthalate ester (PAE) contamination in vegetables. However, limited information is currently available on their occurrence and associated potential risks in GVP systems. The present study documents the occurrence and composition of 15 PAEs in soil, plastic film, and vegetable samples from eight large-scale GVP bases in Beijing, China. Results showed that PAEs are ubiquitous contaminants in these GVP bases. Total PAE concentrations ranged from 0.14 to 2.13 mg/kg (mean 0.99 mg/kg) in soils and from 0.15 to 6.94 mg/kg (mean 1.49 mg/kg) in vegetables. Di (2-ethylhexyl) phthalate, di-n-butyl phthalate, and diisobutyl phthalate were the most abundant components, which accounted for >90% of the total PAEs. This investigation also indicated that the widespread application of plastic film in GVP systems may be the primary source of these PAEs. The non-cancer and carcinogenic risks of target PAEs were estimated based on the exposures of vegetable intake. The hazard quotients of PAE in all vegetable samples were lower than 1 and the carcinogenic risks were also at acceptable levels for consumers. The data in this study can provide valuable information to understand the status of potential pollutants, specifically PAEs, in GVP systems. (C) 2016 Elsevier B.V. All rights reserved.

分类号： X1

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