A survey of the techniques used to control occupational exposure to nonvolatile paint components, paint solvents, metal compound dusts of lead (7439921), titanium-dioxide (13463677), zinc-oxide (1314132), and formaldehyde (50000) was conducted at the Streater Division of the Litton Business Systems Group (SIC-2542), Albert Lea, Minnesota, in March, 1981. The facility used ventilation and exhaust air systems to control the emission of paint particulates and solvents. Analysis of area and breathing zone samples showed that the airborne concentrations of all substances were below the OSHA and NIOSH limits, although concentrations of the solvents n- butyl-alcohol (71363) and RC Lacquer Solvent were elevated at 2.0 to 7.9 milligrams per cubic meter (mg/m3) for the former, and 98.0 to 135.0mg/m3 for the latter. The authors conclude that improved work practices such as spraying paint directly into the booth, not out of it, and utilization of covered solvent containers would significantly reduce exposures. It is recommended that the local exhaust systems at the paint booths be tested, and changes be made to improve the ventilation system where necessary.
Industrywide Studies Branch, NIOSH, Cincinnati, Ohio, 74 pages, 14 references