|Document ID (ISN)||111746|
|ISSN - Serial title
||0019-8366 - Industrial Health
|Convention or series no.
||Schoonover T., Conroy L., Lacey S., Plavka J.
||Personal exposure to metal fume, NO2, and O3 among production welders and non-welders
||Jan. 2011, Vol.49, No.1, p.63-72. 44 ref.
||Personal_exposure_to_metal_fume.pdf [in English]
||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.
||breathing atmosphere; nitrogen dioxide; ozone; welding fumes; welding and cutting; personal sampling; metalworking industry
||USA; shielded-arc welding; locomotives; sampling and analysis; case-control study
||D - Periodical articles
||Metal production and metalworking
Toxic and dangerous substances
|Broad subject area(s)
Welding and cutting