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Health hazard evaluation report: HETA-81-338-1070, Public Services Company of Colorado, Pueblo, Colorado.
Gunter BJ; Pryor P; Thoburn TW
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 81-338-1070, 1982 Mar; :1-12
Local 111 of the International Brotherhood of Electrical Workers requested an evaluation of fly-ash, silica, and arsenic exposures to workers who repair electrostatic precipitators at the Public Service Company of Colorado (SIC-4911), Pueblo, Colorado. On July 18 and 19, 1981, all eight workers were monitored for crystalline silica, total dust particulates, arsenic (7440382), lead (7439921), selenium (7782492), and cadmium (7440439). Most respirable and total particulate breathing zone air samples exceeded the OSHA standards of 10 milligrams per cubic meter (millig/m3). Arsenic concentrations peaked at 0.01millig/m3, above the evaluation criteria of 0.002millig/m3. One sample for silica exceeded the evaluation criteria of 0.05 milligrams per cubic meter. Three workers reported they had skin problems due to fly-ash. One worker had a significant loss of pulmonary function. The authors conclude that a potential health hazard exists from over exposure to particulates, arsenic, and crystalline silica. The exposure to fly- ash during cleanout does not appear to have resulted in pulmonary disease. They recommend shower facilities, a respiratory program, shaving so that respirators will fit properly, and yearly physical examinations.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; Hazards-Confirmed; Employee-exposure; Electrostatic-precipitators; Airborne-particles; Electric-power-generation; Respiratory-protective-equipment; Respiratory-irritants; Pulmonary-function; HETA-81-338-1070; Region-8; NIOSH-Technical-Assistance-Report; Author Keywords: Electric Power Generation; respirable free silica; quartz; cristobalite; fly-ash; arsenic; total and respirable particulates; trace metals
7440-38-2; 7439-92-1; 7782-49-2; 7440-43-9
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: November 6, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division