Comparing exposure levels by type of welding operation and evaluating the effectiveness of fume extraction guns.
Wallace
M
M
Engineering and Physical Hazards Branch, NIOSH, Cincinnati, OH 45226, USA.
Shulman
S
S
Sheehy
J
J
D016902:Air Pollution, Indoor / Q000517:prevention & control*; D004867:Equipment Design; D006801:Humans; D008420:Manufactured Materials; D016273:Occupational Exposure; D014691:Ventilation; D014896:Welding