Atmospheric polychlorinated biphenyls in Indian cities:levels, emission sources and toxicity equivalents

Chakraborty, Paromita and Zhang, Gan and Eckhardt, Sabine and Li, Jun and Breivik, Knut and Lam, Paul K.S. and Tanabe, Shinsuke and Jones, Kevin C. (2013) Atmospheric polychlorinated biphenyls in Indian cities:levels, emission sources and toxicity equivalents. Environmental Pollution, 182. pp. 283-290. ISSN 0269-7491

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Abstract

Atmospheric concentration of Polychlorinated biphenyls (PCBs) were measured on diurnal basis by active air sampling during Dec 2006 to Feb 2007 in seven major cities from the northern (New Delhi and Agra), eastern (Kolkata), western (Mumbai and Goa) and southern (Chennai and Bangalore) parts of India. Average concentration of Σ25PCBs in the Indian atmosphere was 4460 (±2200) pg/m−3 with a dominance of congeners with 4–7 chlorine atoms. Model results (HYSPLIT, FLEXPART) indicate that the source areas are likely confined to local or regional proximity. Results from the FLEXPART model show that existing emission inventories cannot explain the high concentrations observed for PCB-28. Electronic waste, ship breaking activities and dumped solid waste are attributed as the possible sources of PCBs in India. Σ25PCB concentrations for each city showed significant linear correlation with Toxicity equivalence (TEQ) and Neurotoxic equivalence (NEQ) values.

Item Type: Journal Article
Journal or Publication Title: Environmental Pollution
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3000/3005
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 67051
Deposited By: ep_importer_pure
Deposited On: 09 Oct 2013 08:57
Refereed?: Yes
Published?: Published
Last Modified: 19 Feb 2020 08:15
URI: https://eprints.lancs.ac.uk/id/eprint/67051

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