J. Phys. IV France 107 (2003) 1037
DOI: 10.1051/jp4:20030476

Speciation of lead in ambient air dust combining individual particle analysis by ESEM-EDS, micro-Raman, micor-PIXE and bulk analysis by ICP-MS and selective chemical extractions

E. Perdrix¹, G. Lecornet¹, P. Delalain², S. Sobanska³, H. Guegan⁴, J. Laureyns³, A. Robache¹ and A. Morin<sup>2

1</sup>  Département Chimie et Environnement, École des Mines de Douai, 941 rue Charles Bourseul, BP. 838, 59508 Douai, France
²  Unité de Chimie Analytique Environnementale, Unité des Risques Chroniques, INERIS, Parc Technologique Alata, BP. 2, 60550 Verneuil-en-Halatte, France
³  Laboratoire de Spectrochimie Infrarouge et Raman (LASIR), Université des Sciences et Technologies de Lille, bâtiment C5, 59655 Villeneuve-d'Ascq cedex, France
⁴  ARCANE-CENBG, Le Haut Vigneau, 33175 Gradignan cedex, France

Abstract
In order to determine the speciation of lead in ambient air dust, a combination of two complementary levels of investigation is used. The first one consists in a quantitative bulk analysis of the samples by applying selective chemical extractions followed by ICP-MS analysis. The second one is an individual particle analysis done by ESEM-EDS, micro-PIXE and micro-Raman. This paper presents the results from initial studies aiming to demonstrate the relevance of our methodology. Primary information about the main physico-chemical species of lead found in ambient air particulate matter, collected in the vicinity of a lead and zinc smelter, are given.

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