|Document ID (ISN)||105122|
|ISSN - Serial title
||1545-9624 - Journal of Occupational and Environmental Hygiene
|Convention or series no.
||Harris M.K., Ewing W.M., Longo W., DePasquale C., Mount M.D., Hatfield R., Stapleton R.
||Manganese exposures during shielded metal arc welding (SMAW) in an enclosed space
||Aug. 2005, Vol.2, No.8, p.375-382. Illus. 24 ref.
||This study evaluated the effectiveness of various rates of dilution ventilation in controlling welder exposures to manganese in shielded metal arc welding (SMAW) fumes when working in enclosed or restricted spaces. Personal and area monitoring using total and respirable sampling techniques, along with multiple analytical techniques, was conducted during the welding operations. Results indicated that 2000 cubic feet per minute (CFM) general dilution ventilation may not be a sufficient means of controlling respirable manganese exposures for either welders or their helpers in restricted or enclosed spaces. In the absence of site-specific monitoring data indicating otherwise, it is prudent to employ respiratory protection or source capture ventilation rather than depending solely on 2000 CFM general dilution ventilation in enclosed spaces.
||shielded-arc welding; manganese and compounds; exhaust ventilation; welding fumes; work in confined spaces
||local exhaust; personal sampling; manganese; determination in air; air exchange rate; exposure evaluation; respirators; respirable dust
||D - Periodical articles
|Country / State or Province||USA|
||Metal production and metalworking
Toxic and dangerous substances
|Broad subject area(s)
Welding and cutting