title: Assessment and investigation on the fate of organochlorine pesticides in water and sediments of international Amir-kalaye wetland in north of Iran.
abstract: A total of 48 water samples and 24 sediment samples were collected at four sampling stations along the wetland during four seasons from 2009 to 2010 and analyzed by gas chromatograph-electron capture detector (GC-ECD). In water the total concentration of OCPs was 0.33, 0.01, 0.1 and 0.07 mg/L in summer, autumn, winter and spring, respectively. The most frequent OCP compounds detected were endrin and chlordane (0.08 and 0.07 mg/L), heaxachlorobenzene and chlordane (0.06, 0.02 mg/L), and chlordane (0.07 mg/L) in summer, winter and spring, respectively. The maximum concentration of ΣOCPs was found in samples collected from station 1 in summer (0.26 mg/L). In sediments the total concentrations of OCPs were 15.84 and 2.62 mg/g-dry weight (dw) in summer and winter, respectively. Chlordane was the most frequently found OCP compound, followed by lindane, 9.92 and 2.47 mg/g-dry weight (dw), respectively, in summer. While, lindane (2.52 mg/g-dw) and endosulfan I (0.1 mg/g-dw) were the highest OCP compounds detected in winter. The results obtained in this study show that there still exist a variety of organochlorine pesticide residues in the water and sediments from the Amir-kalaye wetland in Iran.
authors.affiliation: Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran. a_nekooei@yahoo.com
authors.forename: Azadeh Nekouei
authors.initials: AN
authors.lastname: Esfahani
authors.forename: Amir Hessam
authors.initials: AH
authors.lastname: Hassani
authors.forename: Parvin
authors.initials: P
authors.lastname: Farshchi
authors.forename: Mohssen
authors.initials: M
authors.lastname: Morowati
authors.forename: Faramarz
authors.initials: F
authors.lastname: Moatar
authors.forename: Abdolreza
authors.initials: A
authors.lastname: Karbassi
mesh_terms: D004784:Environmental Monitoring; D005618:Fresh Water / Q000737:chemistry; D019015:Geologic Sediments / Q000737:chemistry; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D007492:Iran; D008956:Models, Chemical; D010575:Pesticides / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data; D053833:Wetlands
chemical_list: D006843:Hydrocarbons, Chlorinated; D010575:Pesticides