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The significance of PCBs in the atmosphere of the southern hemisphere.

Ockenden, Wendy A. and Lohmann, Rainer and Shears, John R. and Jones, Kevin C. (2001) The significance of PCBs in the atmosphere of the southern hemisphere. Environmental Science and Pollution Research, 8 (3). pp. 189-194. ISSN 0944-1344

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Abstract

Air monitoring stations were set up at 2 sites in the southern hemisphere — Moody Brook, Falkland Islands (51° 25′ S, 57° 56′W) and Halley, Research Station, Antarctica (75° 35′ S, 26° 30′ W). PCBs were monitored at the stations throughout 1999. Highest concentrations were observed when temperatures were greater. In general, concentrations were greater at Moody Brook than at Halley, although the difference in concentrations between sites was less for more chlorinated congeners. Air concentrations at both sites were compared with samples collected nearby over-water. Over water air concentrations were found to be greater than over land air concentrations. Concentrations were also compared with literature data for air concentrations at a remote site in the Canadian Arctic. Atmospheric concentrations of tri-chlorinated biphenyls were found to be approximately double those reported for Ellesmere Island in the Canadian Arctic, whilst concentrations in samples from Antarctica were very similar to those found in the high Arctic. Most other PCBs were a factor of 2–4 greater in the Canadian Arctic.

Item Type: Article
Journal or Publication Title: Environmental Science and Pollution Research
Uncontrolled Keywords: Air - antarctica - atmosphere - long-range transport - PCBs - persistent organic pollutants (POPs) - polycyclic chlorinated biphenyls - POPs - southern hemisphere
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 21569
Deposited By: ep_ss_importer
Deposited On: 21 Jan 2009 16:33
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:49
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/21569

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