title: Monitoring of organochlorine and organophosphorus pesticide residues in water during different seasons of Tighra reservoir Gwalior, Madhya Pradesh, India.
abstract: Analysis of pesticides during different seasons for pesticidal contamination in water samples of Tighra reservoir was carried out on gas chromatograph-electron capture detector with capillary columns following multiresidual analytical technique. Organochlorine pesticides, viz., hexachlorobenzene (HCB), alpha-benzene hexachloride (BHC), beta-BHC, γ-BHC, heptachlor, aldrin, alpha-endosulfan, beta-endosulfan, p,p-DDE, dieldrin, o,p-dichlorodiphenyldichloroethane (DDD), p,p-DDD, p,p-dichlorodiphenyltrichloroethane (DDT), and endrin, and organophosphorus pesticides, viz., choloropyrifos, methyl parathion, diazion, dicholorovos, ethion, malathion, and parathion, were detected in water samples during different seasons. However, the pesticide concentration varied during different seasons at different sites. The prominent reason of contamination is the use of pesticides (both organochlorine and organophosphorus) in the agricultural fields near Tighra reservoir. On the basis of our observations, more extensive monitoring studies need to be carried out, covering all wetlands of Madhya Pradesh to enforce the policies for the restricted application of pesticides in agricultural fields adjacent to wetlands.
authors.affiliation: Department of Environmental Science, Jiwaji University, Gwalior, Madhya Pradesh, India. tanu_tashu25@yahoo.com.
authors.lastname: Mamta
authors.affiliation: Department of Environmental Science, Jiwaji University, Gwalior, Madhya Pradesh, India.
authors.forename: R J
authors.initials: RJ
authors.lastname: Rao
authors.affiliation: Department of Environmental Science, ITM University, Gwalior, Madhya Pradesh, India.
authors.forename: Khursheed Ahmad
authors.initials: KA
authors.lastname: Wani
mesh_terms: D002849:Chromatography, Gas; D004784:Environmental Monitoring; D006843:Hydrocarbons, Chlorinated / Q000032:analysis* / Q000737:chemistry; D007194:India; D009943:Organophosphorus Compounds / Q000032:analysis* / Q000737:chemistry; D010573:Pesticide Residues / Q000032:analysis* / Q000737:chemistry; D012621:Seasons; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry
chemical_list: D006843:Hydrocarbons, Chlorinated; D009943:Organophosphorus Compounds; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical; D014867:Water
keywords: Agriculture; Concentration; Pesticides; Tighra