Soil contamination by phthalate esters in Chinese intensive vegetable production systems with different modes of use of plastic film
Soil contamination by phthalate esters in Chinese intensive vegetable production systems with different modes of use of plastic film
复制标题
DOI：
10.1016/j.envpol.2013.05.036
复制
发表时间：
2013-09-01
影响因子：
8.9
通讯作者：
Li, Zhengao
中科院分区：
文献类型：
--
作者：
Wang, Jun;Luo, Yongming;Li, Zhengao
采用气相色谱-质谱法(GC-MS)分析了中国东部南京市郊区集约化菜园土壤中6种邻苯二甲酸酯类化合物的含量。土壤中PAE总量变化范围为0.15~9.68 mg kg(-1)，中位数为1.70 mg kg(-1)，其中邻苯二甲酸二丁酯(DnBP)、邻苯二甲酸二异辛酯(DEHP)和邻苯二甲酸二辛酯(DnOP)含量最高。土壤PAR浓度取决于地膜的使用方式，地膜中加入PAEs作为增塑剂，地膜和家禽粪便似乎都是土壤PAEs的重要来源。蔬菜与水稻轮作导致土壤中PAEs浓度较低。结果表明，农用地膜是土壤PAE污染的重要来源，不同地膜使用方式下集约农田土壤PAE污染机理有待进一步研究。皇冠版权所有(C)2013由爱思唯尔有限公司出版。保留所有权利。
The concentrations of six priority phthalic acid esters (PAEs) in intensively managed suburban vegetable soils in Nanjing, east China, were analyzed using gas chromatography-mass spectrometry (GC-MS). The total PAE concentrations in the soils ranged widely from 0.15 to 9.68 mg kg(-1) with a median value of 1.70 mg kg(-1), and di-n-butyl phthalate (DnBP), bis-(2-ethylhexyl) phthalate (DEHP) and di-n-octyl phthalate (DnOP) were the most abundant phthalate esters. Soil PAR concentrations depended on the mode of use of plastic film in which PAEs were incorporated as plasticizing agents and both the plastic film and poultry manure appeared to be important sources of soil PAEs. Vegetables in rotation with flooded rice led to lower concentrations of PAEs in soil. The results indicate that agricultural plastic film can be an important source of soil PAE contamination and further research is required to fully elucidate the mechanisms of PAE contamination of intensive agricultural soils with different use modes of use of plastic film. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.