HHE Report No. HETA-85-433-1638, Current, Inc., Colorado Springs, Colorado.
Breathing zone and environmental samples were analyzed for toluene (108883), xylene (1330207), ethylbenzene (100414), methylene- chloride (75092), perchloroethylene (127184), and isopropanol (67630) at Current, Incorporated (SIC-2771), Colorado Springs, Colorado in August, 1985. The evaluation was requested by the safety and health department to investigate chemical exposures at the facility. An unspecified number of employees were interviewed. Average solvent exposures were: toluene, 1.4 milligrams per cubic meter (mg/m3); xylene, 1.7mg/m3; ethylbenzene, 0.4mg/m3; methylene- chloride, 28mg/m3; perchloroethylene, 0.4mg/m3; and isopropanol, 30mg/m3. The maximum methylene-chloride exposure, 344mg/m3, exceeded the NIOSH standard of 260mg/m3. The OSHA standard for methylene-chloride is 1,700mg/m3. All other exposures were well below their relevant standards. Employee interviews indicated that the workers were satisfied with their jobs and complaints were limited. The complaints were not sufficient to warrant a medical evaluation. The author concludes that there is a potential health hazard from methylene-chloride exposure. He recommends substituting less toxic solvents for methylene-chloride and perchloroethylene if possible, installing local exhaust ventilation next to all printing presses, and prohibiting smoking and eating in the pressroom.
Hazard Evaluations and Technical Assistance Branch, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-85-433-1638, 11 pages, 7 references