Soil contamination by phthalate esters in Chinese intensive vegetable production systems with different modes of use of plastic film

详细信息    查看全文

• 作者：Jun Wang ; Yongming Luo ; Ying Teng ; Wenting Ma ; Peter Christie ; Zhengao Li
• 关键词：Phthalate esters ; Plastic film ; Plasticizers ; Soil contamination ; Vegetable production
• 刊名：Environmental Pollution
• 出版年：2013
• 出版时间：September, 2013
• 年：2013
• 卷：180
• 期：Complete
• 页码：265-273
• 全文大小：737 K

文摘

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 PAE 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.