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CISDOC database

Document ID (ISN)111746
CIS number 11-0405
ISSN - Serial title 0019-8366 - Industrial Health
Year 2011
Convention or series no.
Author(s) Schoonover T., Conroy L., Lacey S., Plavka J.
Title Personal exposure to metal fume, NO2, and O3 among production welders and non-welders
Bibliographic information Jan. 2011, Vol.49, No.1, p.63-72. 44 ref.
Internet access Personal_exposure_to_metal_fume.pdf [in English]
Abstract The objective of this study was to characterize personal exposures to welding-related metals and gases for production welders and non-welders in a large manufacturing facility. Welding fume metals and irritant gases nitrogen dioxide (NO2 and ozone (O3) were sampled for 38 workers. Personal exposure air samples for welding fume metals were collected on open-face cassettes and nitrogen dioxide and ozone exposure samples were collected with diffusive passive samplers. Samples were analyzed for metals using inductively coupled plasma mass spectrometry (ICP-MS) and welding fume metal exposure concentrations were defined as the sum of welding-related metals mass per volume of air sampled. Welding fume metal exposures were highly variable among similar types of welding while NO2 and O3 exposure were less variable. Welding fume metal exposures were significantly higher (474 μg/m3) for welders than non-welders (60 μg/m3). Welders were exposed to higher concentrations NO2 and O3 than non-welders but the differences were not statistically significant. Welding fume metal exposure concentrations for welders performing gas metal arc welding (GMAW) and shielded metal arc welding (SMAW) were higher than welders performing gas tungsten arc welding (GTAW). Non-welders experienced exposures similar to GTAW welders despite a curtain wall barrier separating welding and non-welding work areas.
Descriptors (primary) breathing atmosphere; nitrogen dioxide; ozone; welding fumes; welding and cutting; personal sampling; metalworking industry
Descriptors (secondary) USA; shielded-arc welding; locomotives; sampling and analysis; case-control study
Document type D - Periodical articles
Subject(s) Metal production and metalworking
Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Exposure evaluation
Welding and cutting
Metalworking industry