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Martin Lehnert1,†, Beate Pesch1,*,†, Anne Lotz1, Johannes Pelzer2, Benjamin Kendzia1, Katarzyna Gawrych1, Evelyn Heinze1, Rainer Van Gelder3, Ewald Punkenburg4, Tobias Weiss5, Markus Mattenklott6, Jens-Uwe Hahn7, Carsten Möhlmann2, Markus Berges2, Andrea Hartwig8, Thomas Brüning9 and The Weldox Study Group
1Center of Epidemiology, Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bochum, Germany
2Exposure assessment, Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA), Sankt Augustin, Germany
3Monitoring of working conditions, Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA), Sankt Augustin, Germany
4BerufsgenossenschaftHolz und Metall, Hannover, Germany
5Human Biomonitoring, Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bochum, Germany
6Dusts – fibres, Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA), Sankt Augustin, Germany
7Chemical agents I, Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA), Sankt Augustin, Germany
8Institute of Applied Biosciences, Food Chemistry, and Toxicology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
9Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bochum, Germany ?* Author to whom correspondence should be addressed. Tel: +49-(0)234-302-4536; fax: +49-(0)234-302-4505; e-mail: pesch{at}ipa-dguv.de Received January 6, 2012. Accepted February 20, 2012. This investigation aims to explore determinants of exposure to particle size-specific welding fume. Area sampling of ultrafine particles (UFP) was performed at 33 worksites in parallel with the collection of respirable particles. Personal sampling of respirable and inhalable particles was carried out in the breathing zone of 241 welders. Median mass concentrations were 2.48 mg m-3 for inhalable and 1.29 mg m-3 for respirable particles when excluding 26 users of powered air-purifying respirators (PAPRs). Mass concentrations were highest when flux-cored arc welding (FCAW) with gas was applied (median of inhalable particles: 11.6 mg m-3). Measurements of particles were frequently below the limit of detection (LOD), especially inside PAPRs or during tungsten inert gas welding (TIG). However, TIG generated a high number of small particles, including UFP. We imputed measurements © The Author 2012. Published by Oxford University Press [on behalf of the British Occupational Hygiene Society
]. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. This Article
Ann Occup Hyg (2012) 56 (5): 557-567. doi: 10.1093/annhyg/mes025 First published online: April 26, 2012 PubMed citationArticles by Lehnert, M.Articles by Pesch, B.Articles by Lotz, A.Articles by Pelzer, J.Articles by Kendzia, B.Articles by Gawrych, K.Articles by Heinze, E.Articles by Van Gelder, R.Articles by Punkenburg, E.Articles by Weiss, T.Articles by Mattenklott, M.Articles by Hahn, J. U.Articles by Möhlmann, C.Articles by Berges, M.Articles by Hartwig, A.Articles by Brüning, T.Current Issue
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