during maintenance operations. Arsenic-containing contaminants may accumulate in pump oil, the nitrogen trap, oil-bubbler,
furnace, or exhaust vent line systems.
as a result of ampoule explosion/implosion.
while cleaning crystal growers.
during ampoule breakout.
during loading, unloading, or failure of the glove-box system.
during loading or unloading of the reactor.
Acute exposures to organic arsenic compounds by ingestion may result in burning lips,
throat constriction, abdominal pain, dysphagia, nausea, vomiting, diarrhea, convulsions,
coma, and death. Irritation of the respiratory tract, skin, and eyes may result from
Chronic exposure to organic arsenic compounds may result in dermatitis, anemia,
leukocytopenia, or the effects associated with several forms of cancer.
Identify arsenic hazards and perform appropriate exposure evaluations.
Use respiratory protection when necessary to further reduce exposure and protect employees. [29 CFR 1910.134]
Implement appropriate maintenance procedures and work practices designed to prevent or minimize exposure. Provide proper training for maintenance and other affected personnel.
Occupational Health Guidelines for Chemical Hazards. US Department of Health and Human Services (DHHS), National Institute for Occupational Safety and Health (NIOSH) Publication No. 81-123, (1981, January). Provides a table of contents of guidelines for many hazardous chemicals. The files provide technical chemical information, including chemical and physical properties, health effects, exposure limits, and recommendations for medical monitoring, personal protective equipment (PPE), and control procedures.
U.S. Department of Labor | Occupational Safety & Health Administration | 200 Constitution Ave., NW, Washington, DC 20210 Telephone: 800-321-OSHA (6742) | TTY www.OSHA.gov
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