Occurrence and Distribution of Persistent Trace Organics in Rainwater in an Urban Region (India) |
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Authors: | Amrita Malik Vinod K Singh Kunwar P Singh |
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Institution: | (1) Environmental Chemistry Section, Industrial Toxicology Research Centre, Post Box 80, Mahatma Gandhi Marg, Lucknow, 226 001, India |
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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 ΣOCPs with the highest levels of β-HCH isomer.
The OCPs, which are currently banned in the country, were also observed. The residue levels of ΣOCPs in rainwater samples
ranged between BDL and 447.17 ng L−1. Endrin, β-endosulfan, heptachlor epoxide B and methoxychlor could not be detected in any of the sample. The levels of ΣPAHs
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. |
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Keywords: | Rainwater Trace-organics Pesticides PAHs |
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