American Journal of Epidemiology – To investigate lung cancer risk of welding fumes, hexavalent chromium, and nickel, researchers analyzed data from two German case-control studies. They developed a welding-process exposure-matrix from measurements of these agents, which was linked with welding histories from a job-specific questionnaire to calculate cumulative exposure variables. They found that welding fumes, hexavalent chromium, and nickel may contribute independently to the excess lung cancer risk associated with welding.
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