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In-depth survey report of U.S. Chrome, Fond du Lac, Wisconsin.

Authors
Sheehy-JW
Source
NIOSH 1982 Aug; :1-36
NIOSHTIC No.
00131999
Abstract
An indepth survey of control technology was conducted at US Chrome (SIC-3471), Fond du Lac, Wisconsin, in September 1981. The survey was conducted to evaluate engineering control technology used in a production plating and cleaning operation. Personal air samples were collected for hexavalent-chromium (18540299) (CrVI), sulfuric- acid (7664939), and nitric-acid (7697372). Area samples were also collected for these and for chromium (7440473) (Cr) and hydrofluoric- acid (7664393). OSHA permissible exposure limits for CrVI, sulfuric- acid, and nitric-acid were 0.100, 1.0, and 5.0 milligrams per cubic meter, respectively, for an 8 hour time weighted average. Personal samples showed good control of CrVI, Cr, sulfuric-acid, and nitric- acid for most tanks. A mixed acid tank showed escape of some sulfuric-acid not captured by the one sided local exhaust ventilation. Low exposures to Cr compounds and acids were due to good local exhaust ventilation, low density of plating and cleaning tanks, high ceilings, and general exhaust ventilation. A 300 percent increase in plating production did not affect Cr concentrations in the room air or around the tanks. The author recommends the facility for a followup study to test the hypothesis that higher plating production increases emissions and worker exposure.
Keywords
NIOSH-Author; Control-technology; Atmosphere-analyzers; Exposure-levels; Air-sampling; Worker-health; Sampling-methods; Air-sampling-techniques; Industrial-hygiene; Region-5
CAS No.
18540-29-9; 7664-93-9; 7697-37-2; 7440-47-3; 7664-39-3
Publication Date
19820816
Document Type
Field Studies; Control Technology
Fiscal Year
1982
NTIS Accession No.
PB83-197145
NTIS Price
A04
Identifying No.
CT-106-19a
NIOSH Division
DPSE
Priority Area
Control-technology
SIC Code
3471
Source Name
National Institute for Occupational Safety and Health
State
WI; OH
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