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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

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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.