NDLI: Levels and source of organochlorine pesticides in surface waters of Qiantang River, China

Content Provider	Springer Nature Link
Author	Zhou, Rongbing Zhu, Lizhong Chen, Yuyun
Copyright Year	2007
Abstract	Qiantang River is a typical river used for drinking water source, flowing through agricultural area in east China. Surface water samples at 45 sampling sites from the river were collected and analyzed for 13 organochlorine pesticides (OCPs) during six surveys in 2 years of 2005–2006. Sediments, soils, farmland runoff water and dry/wet deposition of this region were also measured for their OCPs residue in order to know possible source of OCPs contamination. The total OCPs concentrations in surface water were 7.68–615.2 ng/l. β-HCH, δ-HCH, Aldrin, Heptachlor, Heptachlor epoxide are the major OCPs in water. The maximum levels of OCPs in water were found in July, while significantly lower OCP concentrations were measured in January. Significant linear correlation was found between the concentration of HCH and that of total 13 OCPs in water. The measured OCP concentrations in sediments, soils, farmland runoff water and dry/wet deposition are discussed in relation to concentrations and patterns found in the surface water. Comparison of OCP levels in sediments and soils led to conclusion that erosion of soil contribute significantly to the contamination of water. The OCPs dry and wet deposition to water body was estimated to 0.49 and 0.86 ton/year, respectively. The ratio of α/γ-HCH and (DDE+DDD)/∑DDT in environmental matrix indicated there probably existed new OCPs input of lindane and dicofol into the river.
Starting Page	277
Ending Page	287
Page Count	11
File Format	PDF
ISSN	01676369
Journal	Environmental Monitoring and Assessment
Volume Number	136
Issue Number	1-3
e-ISSN	15732959
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-03-21
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Organochlorine pesticides HCH DDT Dry/wet deposition Sediments Soils Environmental Management Atmospheric Protection/Air Quality Control/Air Pollution Ecology Ecotoxicology
Content Type	Text
Resource Type	Article
Subject	Pollution Medicine Management, Monitoring, Policy and Law

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