title: Occurrence and distribution of persistent trace organics in rainwater in an urban region (India).
abstract: The rainwater samples collected from the Lucknow city (India) were analyzed for selected organochlorine pesticides (OCPs) and polycyclic aromatic hydrocarbons (PAHs). HCH-isomers contributed most to the SigmaOCPs with the highest levels of beta-HCH isomer. The OCPs, which are currently banned in the country, were also observed. The residue levels of SigmaOCPs in rainwater samples ranged between BDL and 447.17 ng L(-1). Endrin, beta-endosulfan, heptachlor epoxide B and methoxychlor could not be detected in any of the sample. The levels of SigmaPAHs in rainwater samples ranged between 19.32 and 11,112.09 ng L(-1 )and the most abundant hydrocarbon was acenaphthylene. Further, the lower molecular weight PAHs dominated over the high molecular weight compounds.
authors.affiliation: Environmental Chemistry Section, Industrial Toxicology Research Centre, Post Box 80, Mahatma Gandhi Marg, Lucknow 226 001, India.
authors.forename: Amrita
authors.initials: A
authors.lastname: Malik
authors.forename: Vinod K
authors.initials: VK
authors.lastname: Singh
authors.forename: Kunwar P
authors.initials: KP
authors.lastname: Singh
mesh_terms: D001556:Hexachlorocyclohexane / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D008970:Molecular Weight; D010573:Pesticide Residues / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D011891:Rain / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006843:Hydrocarbons, Chlorinated; D010573:Pesticide Residues; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical; D001556:Hexachlorocyclohexane; C023888:beta-hexachlorocyclohexane