title: Residues and Distribution of Organochlorine Pesticides in Water and Suspended Particulate Matter from Hangzhou Bay, East China Sea.
abstract: The concentrations, distribution, and possible sources of organochlorine pesticides (OCPs) in Hangzhou Bay, East China Sea, were studied by analyzing water column and suspended particulate matter (SPM) samples from 13 sites. The results showed that OCP contamination remains widespread in the area. The OCP concentrations were 2.52-27.99 ng/L in the SPM samples and 1.35-26.36 ng/L in the water column samples. Pattern analysis suggested that both fresh and weathered hexachlorocyclohexane (HCH) were present. Low α-HCH/γ-HCH ratios and high β-HCH and γ-HCH levels contributed to the total HCH concentrations in both the water column and SPM samples. High p,p'-dichlorodiphenyltrichloroethane (DDT)/o,p'-DDT ratios and low (dichlorodiphenyldichloroethylene + dichlorodiphenyldichloroethane)/DDT ratios were found, reflecting a "dicofol-type" DDT input pattern, This suggested that new DDT inputs are occurring because of dicofol still being used in the area.
authors.affiliation: Department of Science and Technology, Qianjiang College of Hangzhou Normal University, No. 16 Xuelin Road, Jiang gan District, Hangzhou, 310036, China. lwd@hznu.edu.cn.|College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China. lwd@hznu.edu.cn.
authors.forename: Weidong
authors.initials: W
authors.lastname: Li
authors.affiliation: Department of Science and Technology, Qianjiang College of Hangzhou Normal University, No. 16 Xuelin Road, Jiang gan District, Hangzhou, 310036, China.
authors.forename: Huayun
authors.initials: H
authors.lastname: Yang
authors.affiliation: Department of Science and Technology, Qianjiang College of Hangzhou Normal University, No. 16 Xuelin Road, Jiang gan District, Hangzhou, 310036, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Jiang
authors.affiliation: College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Liu
authors.affiliation: Department of Science and Technology, Qianjiang College of Hangzhou Normal University, No. 16 Xuelin Road, Jiang gan District, Hangzhou, 310036, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Sun
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
authors.forename: Jiazhong
authors.initials: J
authors.lastname: Zhou
mesh_terms: D061006:Bays / Q000737:chemistry*; D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D052638:Particulate Matter / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D012623:Seawater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006843:Hydrocarbons, Chlorinated; D052638:Particulate Matter; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical
keywords: Hangzhou Bay; Organochlorine pesticides; Suspended particulate matter; Water