caa a22 4500 606200177 CHVBK 20210128100942.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10653-015-9697-9 doi (NATIONALLICENCE)springer-10.1007/s10653-015-9697-9 Measuring the solid-phase fractionation of lead in urban and rural soils using a combination of geochemical survey data and chemical extractions [Elektronische Daten] [Mark Cave, Joanna Wragg, Charles Gowing, Amanda Gardner] The study used 276 urban soils and 447 rural soils collected from in and around the UK town of Northampton and focussed on the fractionation of Pb. The Pb fractionation obtained from total element data was compared to the fractionation of Pb in a subset of 10 urban soils obtained using a sequential extraction method. The fractionation of the Pb from the total element data and from the sequential extractions was estimated using a self-modelling mixture resolution statistical model. The bioaccessibility of Pb in a subset of 50 of the urban soils, as measured using the unified BARGE method, was shown to be quantitatively linked with Pb fractionation from both the total element and the sequential extraction data. Three intrinsic soil components from the regional total element data model and one physico-chemical component from the sequential extraction data model were identified as the sources of bioaccessible Pb. The source of bioaccessible Pb in both rural and urban soils was tentatively identified as a fine-grained pyromorphite mineral. Springer Science+Business Media Dordrecht, 2015 Pb nationallicence Fractionation nationallicence Soil nationallicence Bioaccessibility nationallicence Chemometrics nationallicence Urban nationallicence Cave Mark Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut Wragg Joanna Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut Gowing Charles Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut Gardner Amanda Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut Environmental Geochemistry and Health Springer Netherlands 37/4(2015-08-01), 779-790 0269-4042 37:4<779 2015 37 10653 https://doi.org/10.1007/s10653-015-9697-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10653-015-9697-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cave Mark Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut NATIONALLICENCE 700 1- Wragg Joanna Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut NATIONALLICENCE 700 1- Gowing Charles Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut NATIONALLICENCE 700 1- Gardner Amanda Environmental Science Centre, British Geological Survey, N12 5GG, Keyworth, Nottingham, UK aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Springer Netherlands 37/4(2015-08-01), 779-790 0269-4042 37:4<779 2015 37 10653