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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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The variability of polychlorinated biphenyls levels in urban soils from five European cities

Cachada, A. and Lopes, L.V. and Hursthouse, A.S. and Biasioli, M. and Grcman, H. and Otabbong, E. and Davidson, C.M. and Duarte, A.C. (2009) The variability of polychlorinated biphenyls levels in urban soils from five European cities. Environmental Pollution, 157 (2). pp. 511-518. ISSN 0269-7491

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Abstract

The concentration of PCBs in topsoils from five European cities was assessed and the highest levels were found in Glasgow (Scotland), followed by Torino (Italy), Aveiro (Portugal), Ljubljana (Slovenia) and Uppsala (Sweden). All cities showed the presence of local sources in addition to diffuse contamination from global atmospheric transport. The association of general soil parameters with PCBs in Glasgow and with heavier congeners in Torino and Ljubljana indicates that retention of these compounds is occurring. The profiles obtained resemble Aroclor 1254 and 1260, which are important local sources. Nevertheless, differences in PCB profiles were observed among cities, due to the combined effects of the age of the contamination (which determines the time available for volatilisation and degradation), different sources of PCBs and differences in climate (which influence volatilisation and deposition). The distribution of PCBs in topsoils from five European cities was studied and differences were observed in terms of total concentration and congener profiles.