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Modelling lead bioaccessibility in urban topsoils based on data from Glasgow, London, Northampton and Swansea, UK

Appleton, J.D.; Cave, M.R.; Wragg, J.. 2012 Modelling lead bioaccessibility in urban topsoils based on data from Glasgow, London, Northampton and Swansea, UK. Environmental Pollution, 171. 265-272. 10.1016/j.envpol.2012.06.018

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Abstract/Summary

Predictive linear regression (LR) modelling between bioaccessible Pb and a range of total elemental compositions and soil properties was executed for the Glasgow, London, Northampton and Swansea urban areas in order to assess the potential for developing a national urban bioaccessible Pb dataset for the UK. LR indicates that total Pb is the only highly significant independent variable for estimating the bioaccessibility of Pb. Bootstrap resampling shows that the relationship between total Pb and bioaccessible Pb is broadly the same in the four urban areas. The median bioaccessible fraction ranges from 38% in Northampton to 68% in London and Swansea. Results of this study can be used as part of a lines of evidence approach to localised risk assessment but should not be used to replace bioaccessibility testing at individual sites where local conditions may vary considerably from the broad overview presented in this study.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.envpol.2012.06.018
Programmes: BGS Programmes 2010 > Land Use, Planning and Development
ISSN: 0269-7491
Additional Keywords: Bioaccessibility; Lead; Urban; Topsoil; UK
NORA Subject Terms: Earth Sciences
Health
Date made live: 05 Sep 2012 11:19
URI: http://nora.nerc.ac.uk/id/eprint/19473

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