Assessing human exposure to aluminium, chromium and vanadium through outdoor dust ingestion in the Bassin Minier de Provence, France
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The Western part of the “Bassin Minier de Provence”, a former coal mining area, is still occupied by old polluting industries such as a coal-fired power plant and an alumina factory. The identified pollution sources that raise more concern in the population are the emission of gases and dusts, as well as the storage of raw and transformed materials. In 2011, a preliminary survey was carried out in the area as the first step to an exposure and health risk-assessment study. This first survey intends to assess human exposure through ingestion and health risk associated with potentially harmful elements (PHEs) in ground-level dusts collected in recreational areas used by children. Dust samples were taken at 19 sites distributed across the study area, depending on the location of public parks, public gardens, playgrounds and schools. Pseudo-total concentrations of 53 elements were determined by ICP-MS. Bioaccessible concentrations were estimated using the unified bioaccessibility method. This study presents the results obtained for Al, V and Cr, which seem to be related with industry and show similar distribution patterns. PHEs presumably related to traffic or other urban pollution sources are not discussed in this study. The highest total concentrations occur in dusts near the alumina plant that have significant amounts of Al mineral phases (gibbsite and alumina). However, in these dusts only small fractions of the elements under study are in bioaccessible forms. The highest bioaccessible fractions occur in dusts collected near the coal-fired power plant. Further investigation is required to assess potential pathways of exposure and health risk in this area.
KeywordsCoal-fired plant Alumina plant Ground-level dust Oral bioaccessibility Potentially harmful elements
The authors acknowledge the Labex DRIIHM and the Réseau des Observatoire Hommes-Millieux-Centre National de la Recherche Scientifique (ROHM-CNRS) for the support to the project “Analyse comparée de la perception de la pollution atmosphérique en milieu urbain et industriel: Société, géochimie et analyse spatial”, and the Foundation for Science and the Technology (FCT) for the support to the project PEst-C/CTE/UI4035/2011. The authors also want to express their gratitude to the anonymous reviewers for their helpful comments that significantly improved the paper.
- Costa, C., Reis, A. P., Ferreira da Silva, E., Rocha, F., Patinha, C., Dias, A. C., et al. (2012). Assessing the control exerted by soil mineralogy in the fixation of potentially harmful elements in the urban soils of Lisbon, Portugal. Environmental Earth Sciences,. doi: 10.1007/s12665-011-1362-8.Google Scholar
- Hachimi, A., Van Vaeck, L., Poels, K., Adams, F., & Muller, J. F. (1998). Speciation of chromium, lead and nickel compounds by laser microprobe mass spectrometry and application to environmental and biological samples. Spectrochimica Acta Part B: Atomic Spectroscopy, 53, 347–365.CrossRefGoogle Scholar
- Harford, A. J., Hogan, A. C., Tsang, J. J., Parry, D. L., Negri, A. P., Adams, M. S., et al. (2010). Effects of alumina refinery wastewater and signature metal constituents at the upper thermal tolerance of: 1. The tropical diatom Nitzschia closterium. Science of the Total Environment,. doi: 10.1016/j.scitotenv.2009.10.075.Google Scholar
- Huggins, F. E., Seidu, L. B. A., Huffman, G. P., Honaker, R. Q., Kyger, J. R., Higgins, B. L., et al. (2009). Elemental modes of occurrence in an Illinois #6 coal and fractions prepared by physical separation techniques at a coal preparation plant. International Journal of Coal Geology,. doi: 10.1016/j.coal.2008.10.002.Google Scholar
- Kabata-Pendias, A. (2001). Trace elements in soils and plants (3rd ed.). USA: CRC Press.Google Scholar
- Noack, Y., Leoni, C., Robert, S., Reis, A. P., Patinha, C., Fleury, J. (2012). Tree leaves used as indicators of dispersion of particulate atmospheric pollution. Book of Abstracts of the 9th ISEG-International Symposium on Environmental Geochemistry (pp. 250–251). July 15–21, Aveiro, Portugal.Google Scholar
- Pontes, F. V. M., Mendes, B. A. O., de Souza, E. M. F., Ferreira, F. N., da Silva, L. I. D., Carneiro, M. C., et al. (2010). Determination of metals in coal fly ashes using ultrasound-assisted digestion followed by inductively coupled plasma optical emission spectrometry. Analytica Chimica Acta,. doi: 10.1016/j.aca.2009.11.055.Google Scholar
- Salminen, R., Batista, M. J., Demetriades, A., Lis, J., & Tarvainen, T. (2005). Sampling. In R. Salminen (Ed.), Geochemical atlas of Europe. Part 1: Background information, methodology and maps. Espoo: Geological Survey of Finland.Google Scholar
- Schumacher, B. A. (2002). Methods for the determination of total organic carbon (TOC) in soils and sediments. Washington, DC: U.S. Environmental Protection Agency. EPA/600/R-02/069 (NTIS PB2003-100822).Google Scholar
- Smołka-Danielowska, D. (2006). Heavy metals in fly ash from a coal-fired power station in Poland. Polish Journal of Environmental Studies, 15, 943–946.Google Scholar