PMID- 23790592 OWN - NLM STAT- MEDLINE DCOM- 20140911 LR - 20140122 IS - 1618-131X (Electronic) IS - 1438-4639 (Linking) VI - 217 IP - 2-3 DP - 2014 Mar TI - Assessment of the biological effects of welding fumes emitted from metal inert gas welding processes of aluminium and zinc-plated materials in humans. PG - 160-8 LID - S1438-4639(13)00062-X [pii] LID - 10.1016/j.ijheh.2013.04.008 [doi] AB - The aim of this study was to investigate biological effects and potential health risks due to two different metal-inert-gas (MIG) welding fumes (MIG welding of aluminium and MIG soldering of zinc coated steel) in healthy humans. In a threefold cross-over design study 12 male subjects were exposed to three different exposure scenarios. Exposures were performed under controlled conditions in the Aachener Workplace Simulation Laboratory (AWSL). On three different days the subjects were either exposed to filtered ambient air, to welding fumes from MIG welding of aluminium, or to fumes from MIG soldering of zinc coated materials. Exposure was performed for 6 h and the average fume concentration was 2.5 mg m(-3). Before, directly after, 1 day after, and 7 days after exposure spirometric and impulse oscillometric measurements were performed, exhaled breath condensate (EBC) was collected and blood samples were taken and analyzed for inflammatory markers. During MIG welding of aluminium high ozone concentrations (up to 250 mug m(-3)) were observed, whereas ozone was negligible for MIG soldering. For MIG soldering, concentrations of high-sensitivity CRP (hsCRP) and factor VIII were significantly increased but remained mostly within the normal range. The concentration of neutrophils increased in tendency. For MIG welding of aluminium, the lung function showed significant decreases in Peak Expiratory Flow (PEF) and Mean Expiratory Flow at 75% vital capacity (MEF 75) 7 days after exposure. The concentration of ristocetin cofactor was increased. The observed increase of hsCRP during MIG-soldering can be understood as an indicator for asymptomatic systemic inflammation probably due to zinc (zinc concentration 1.5 mg m(-3)). The change in lung function observed after MIG welding of aluminium may be attributed to ozone inhalation, although the late response (7 days after exposure) is surprising. CI - Copyright (c) 2013 Elsevier GmbH. All rights reserved. FAU - Hartmann, L AU - Hartmann L AD - Institute for Occupational and Social Medicine, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany. Electronic address: laura.hartmann@rwth-aachen.de. FAU - Bauer, M AU - Bauer M AD - Institute for Occupational and Social Medicine, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany. FAU - Bertram, J AU - Bertram J AD - Institute for Occupational and Social Medicine, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany. FAU - Gube, M AU - Gube M AD - Institute for Occupational and Social Medicine, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany. FAU - Lenz, K AU - Lenz K AD - ISF - Welding and Joining Institute, RWTH Aachen University, Pontstrasse 49, D-52062 Aachen, Germany. FAU - Reisgen, U AU - Reisgen U AD - ISF - Welding and Joining Institute, RWTH Aachen University, Pontstrasse 49, D-52062 Aachen, Germany. FAU - Schettgen, T AU - Schettgen T AD - Institute for Occupational and Social Medicine, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany. FAU - Kraus, T AU - Kraus T AD - Institute for Occupational and Social Medicine, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany. FAU - Brand, P AU - Brand P AD - Institute for Occupational and Social Medicine, RWTH Aachen University, Pauwelsstr. 30, D-52074 Aachen, Germany. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20130529 PL - Germany TA - Int J Hyg Environ Health JT - International journal of hygiene and environmental health JID - 100898843 RN - 0 (Air Pollutants, Occupational) RN - 0 (Blood Coagulation Factors) RN - 0 (Particulate Matter) RN - 66H7ZZK23N (Ozone) RN - 9007-41-4 (C-Reactive Protein) RN - CPD4NFA903 (Aluminum) RN - J41CSQ7QDS (Zinc) SB - IM MH - Adult MH - Air Pollutants, Occupational/adverse effects MH - *Aluminum MH - Blood Coagulation Factors/metabolism MH - C-Reactive Protein/metabolism MH - Cross-Over Studies MH - Environmental Monitoring MH - Forced Expiratory Flow Rates MH - Humans MH - Inflammation/blood/*chemically induced MH - Lung/*drug effects/physiopathology MH - Lung Diseases/chemically induced/physiopathology MH - Male MH - Neutrophils/metabolism MH - Occupational Diseases/blood/chemically induced/physiopathology MH - Occupational Exposure/*adverse effects MH - Ozone/*adverse effects MH - Particulate Matter/adverse effects MH - Vital Capacity MH - *Welding/methods MH - Young Adult MH - *Zinc OTO - NOTNLM OT - Aluminium OT - Inflammation OT - Ozone OT - Welding OT - Zinc OT - hsCRP EDAT- 2013/06/25 06:00 MHDA- 2014/09/12 06:00 CRDT- 2013/06/25 06:00 PHST- 2012/10/11 00:00 [received] PHST- 2013/03/24 00:00 [revised] PHST- 2013/04/16 00:00 [accepted] PHST- 2013/06/25 06:00 [entrez] PHST- 2013/06/25 06:00 [pubmed] PHST- 2014/09/12 06:00 [medline] AID - S1438-4639(13)00062-X [pii] AID - 10.1016/j.ijheh.2013.04.008 [doi] PST - ppublish SO - Int J Hyg Environ Health. 2014 Mar;217(2-3):160-8. doi: 10.1016/j.ijheh.2013.04.008. Epub 2013 May 29.