caa a22 4500 606199772 CHVBK 20210128100940.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10653-014-9634-3 doi (NATIONALLICENCE)springer-10.1007/s10653-014-9634-3 The mobility and human oral bioaccessibility of Zn and Pb in urban dusts of Estarreja (N Portugal) [Elektronische Daten] [C. Patinha, A. Reis, A. Dias, A. Abduljelil, Y. Noack, S. Robert, M. Cave, E. Ferreira da Silva] Twenty-one samples of urban dust were collected from Estarreja city (Portugal). The main objective of this work was to assess the potential availability of Pb and Zn present dust samples from Estarreja city via the oral ingestion exposure route using a combination of geochemical tests: (a) using sequential extraction to identify the fractionation of the Pb and Zn within the geochemical components that make up the dust and (b) in vitro bioaccessibility (BA) measurements to identify which components are the source(s) of the bioaccessible fraction (Bf). These samples were analysed for their quasi-total contents of Pb and Zn by inductively coupled plasma mass spectrometry, for their element solid-phase distribution using selective sequential extraction method and for the Bfs of these elements using a physiologically based extraction test. The study showed that the concentrations of Zn were higher than Pb, but both are site-specific. The sequential extraction test shows that the exchangeable and acid-soluble phases are important bearing phases for Pb and Zn. The BA test showed that a high proportion of the total concentration is available for absorption into the human body (ranges from 22.5 to 84.1% for Pb and 28.7 to 86.3% for Zn). Springer Science+Business Media Dordrecht, 2014 Urban dust nationallicence Selective sequential extraction nationallicence Geoavailability nationallicence Bioaccessibility nationallicence Patinha C. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut Reis A. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut Dias A. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut Abduljelil A. International Master for Advanced Clay Science, Poitiers, France aut Noack Y. CNRS, UMR 7330, CEREGE, 13545, Aix en Provence Cedex 4, France aut Robert S. CNRS, ESPACE, UMR 6012, MMSH, BP 647, 13094, Aix en Provence, France aut Cave M. British Geological Survey, Nottingham, UK aut Ferreira da Silva E. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut Environmental Geochemistry and Health Springer Netherlands 37/1(2015-02-01), 115-131 0269-4042 37:1<115 2015 37 10653 https://doi.org/10.1007/s10653-014-9634-3 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/s10653-014-9634-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Patinha C. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 700 1- Reis A. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 700 1- Dias A. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 700 1- Abduljelil A. International Master for Advanced Clay Science, Poitiers, France aut NATIONALLICENCE 700 1- Noack Y. CNRS, UMR 7330, CEREGE, 13545, Aix en Provence Cedex 4, France aut NATIONALLICENCE 700 1- Robert S. CNRS, ESPACE, UMR 6012, MMSH, BP 647, 13094, Aix en Provence, France aut NATIONALLICENCE 700 1- Cave M. British Geological Survey, Nottingham, UK aut NATIONALLICENCE 700 1- Ferreira da Silva E. GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Springer Netherlands 37/1(2015-02-01), 115-131 0269-4042 37:1<115 2015 37 10653