title: Distribution and uptake pathways of organochlorine pesticides in greenhouse and conventional vegetables.
abstract: The application of greenhouse vegetable cultivation has dramatically expanded worldwide during the last several decades. However, little information is available on the distribution and uptake of pesticides in greenhouse vegetables. To bridge this knowledge gap, the present study was initiated to investigate the distribution and uptake of organochlorine pesticides (OCPs) in vegetables from plastic greenhouse and conventional cultivation methods. The uptake pathways of OCPs were not significantly different between these two cultivation methods. The arithmetic means of OCP concentrations in greenhouse vegetables were higher than those in conventional vegetables, although there was no significant difference. This small difference raised the concern of whether the tiny difference could be magnified to a significant difference by bioaccumulation in the food chain. The issue should be addressed by a well-designed scheme in future studies.
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Top Key Discipline of Environmental Science and Engineering, Zhejiang University of Technology, Hangzhou 310032, China. Electronic address: azhang@zjut.edu.cn.
authors.forename: Anping
authors.initials: A
authors.lastname: Zhang
authors.affiliation: Top Key Discipline of Environmental Science and Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
authors.forename: Wenxiu
authors.initials: W
authors.lastname: Luo
authors.affiliation: Top Key Discipline of Environmental Science and Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
authors.forename: Jianqiang
authors.initials: J
authors.lastname: Sun
authors.affiliation: Institute of Urban Environment, Chinese Academy of Science, Xiamen 361021, China.
authors.forename: Hang
authors.initials: H
authors.lastname: Xiao
authors.affiliation: MOE Key Laboratory of Environmental Remediation & Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
authors.forename: Weiping
authors.initials: W
authors.lastname: Liu
mesh_terms: D000383:Agriculture / Q000379:methods; D006843:Hydrocarbons, Chlorinated / Q000032:analysis / Q000378:metabolism*; D010573:Pesticide Residues / Q000032:analysis / Q000378:metabolism*; D010575:Pesticides / Q000032:analysis / Q000378:metabolism*; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism; D014675:Vegetables / Q000378:metabolism*
chemical_list: D006843:Hydrocarbons, Chlorinated; D010573:Pesticide Residues; D010575:Pesticides; D012989:Soil Pollutants
keywords: Fugacity fraction; Greenhouse; Organochlorine pesticides; Vegetables