Phthalate esters contamination in soils and vegetables of plastic film greenhouses of suburb Nanjing, China and the potential human health risk
Phthalate esters contamination in soils and vegetables of plastic film greenhouses of suburb Nanjing, China and the potential human health risk
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DOI：
10.1007/s11356-015-4401-2
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发表时间：
2015-08-01
影响因子：
5.8
通讯作者：
Luo, Yong Ming
中科院分区：
文献类型：
--
作者：
Ma, Ting Ting;Wu, Long Hua;Luo, Yong Ming
邻苯二甲酸酯（PAEs）的污染已成为环境和人类健康的潜在威胁，因为它们很容易作为增塑剂从日常生活用品中释放出来，特别是在聚乙烯薄膜中。在中国东部南京市郊区的4个温室区土壤和蔬菜中，研究了被美国环境保护署（USEPA）列为重点污染物的6种PAEs的浓度水平。土壤中PAEs总浓度为930 +/- 840 ~ 2450 +/- 710 μ g kg-1（干重），蔬菜中PAEs总浓度为790 +/- 630 ~ 3 010 +/- 2 130 μ g kg-1。除所石地区和蔬菜外，土壤中PAEs含量较高，尤以芥和紫菜为高。风险评估主要基于土壤摄取量和每日蔬菜摄取量，结果表明固里（GL）和胡树（HS）样品中邻苯二甲酸二乙酯（2-乙基己基）对6岁以下儿童的危害最大。因此，土壤和蔬菜中PAEs污染的人体健康风险应引起高度关注，特别是其环境雌激素模拟效应。
The contamination of phthalate esters (PAEs) has become a potential threat to the environment and human health because they could be easily released as plasticizers from the daily supply products, especially in polyethylene films. Concentration levels of total six PAEs, nominated as priority pollutants by the US Environmental Protection Agency (USEPA), were investigated in soils and vegetables from four greenhouse areas in suburbs of Nanjing, East China. Total PAEs concentration ranged from 930 +/- 840 to 2 450 +/- 710 mu g kg-1 (dry weight (DW)) in soil and from 790 +/- 630 to 3 010 +/- 2 130 mu g kg(-1) in vegetables. Higher concentrations of PAEs were found in soils except in Suo Shi (SS) area and in vegetables, especially in potherb mustard and purple tsai-tai samples. Risk assessment mainly based on the exposures of soil ingestion and daily vegetable intake indicated that bis(2-ethylhexyl) phthalate (DEHP) in the samples from Gu Li (GL) and Hu Shu (HS) exhibited the highest hazard to children less than 6-year old. Therefore, the human health risk of the PAEs contamination in soils and vegetables should greatly be of a concern, especially for their environmental estrogen analog effects.