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Industrial hygiene sampling survey report of Arco Solar, Inc., Chatsworth, California.
Briggs T; Garrison R
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, IWS 68-17, 1979 Jul; :1-28
Worker exposures to silver (7440224), lead (7439921), trichlorotrifluoroethane (76131) (TCF), 1,1,1-trichloroethane (71556) (TCE), silica (7631869) and total dust were surveyed at Arco Solar, Incorporated (SIC-3674) in Chatsworth, California, from April 4 to 6, 1979, as part of health research on photovoltaic solar energy conversion to direct electrical current. The company employs less than 100 people, of whom approximately 65 percent are employed in the production area. Employees were given physical examination on hiring and regularly thereafter. Personal and area air samples for particulate, silica, silver, lead, TCF and TCE were collected. Sample analysis revealed concentrations of particulate dust of 0.01 to 0.74 milligrams per cubic meter; silver, 10.4 to 21.4 micrograms per cubic meter; lead, less than 1.3 micrograms per cubic meter; TCE, 6.1 to 149 parts per million (ppm); and TCF a short term peak of 1390ppm. Silver exceeded the OSHA standard of 10 micrograms per cubic meter for both samples. TCF exceeded the threshold limit volume of 1000ppm. The authors conclude that no significant health hazards were found. They recommend that elevated exposures to silver and TCF be reduced to acceptable concentrations by installing local ventilation and monitoring work practices.
NIOSH-Author; NIOSH-Survey; Field-Study; Region-9; Health-surveys; Workplace-studies; Air-contamination; Health-services; Industrial-processes; Control-methods; Occupational-health-programs; Heavy-metals; Metallic-poisons; Metallic-dusts
7440-22-4; 7439-92-1; 76-13-1; 71-55-6; 7631-86-9
Field Studies; Industry Wide
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division