Exposure limits OSHA regulations

Exposure limits The U.S. EPA has set the maximum permissible level of benzene in drinking water at 5 ppb of water. OSHA has set limits of 1 ppm of workplace air for 8 hours (TWA). NIOSH recommends that the benzene be treated as a potential human carcinogen and that the exposure limit be regulated as a potential human carcinogen. ... 

Air Contaminants—Permissible Exposure Limit," Title 29 Code of Federal Regulations Part CFR 1910.1000, OSHA, 1989, p. 3112. 

OSHA regulations (149) limit exposure to inorganic lead compounds of an employee without a respirator to 50 air as a time-weighted... 

The Occupational Safety and Health Administration (OSHA) regulates the exposure to chemicals ia the workplace. From the poiat of view of the inorganic pigments iadustry, the limits estabUshed for lead and cadmium exposure are particularly important. A comprehensive lead standard adopted by OSHA ia 1978 has been successful ia reduciag the potential for lead contamination ia the workplace. 

Thiophene and 3-methylthiophene are Hsted on the TSCA chemical substances inventory. Thiophene is regulated as a hazardous material under OSHA and also regulated under the Clean Air Act, Section 110, 40 CFR 60.489, but there are no exposure limits or controls set for 3-methylthiophene. Both materials are regulated under sections 311/312 of the Superfund Amendments and Reauthorization Act, 1986 (SARA), as materials with an acute health and fire hazard, and under the Resource Conservation and Recovery Act, as ignitable hazardous wastes (DOOl). 

The handling of arsenic in the workplace should be in compliance with the Occupational Safety and Health Administration (OSHA) regulations the maximum permissible exposure limit for arsenic in the workplace is 10 p-g/m of air as deterrnined as an average over an 8-h period (33). 

Other toxicological effects that may be associated with exposure to benzyl chloride based on animal studies are skin sensitization and developmental embryo and/or fetal toxicity. A 1980 OSHA regulation has estabhshed a national occupational exposure limit for benzyl chloride of 5 mg/m (1 ppm). Concentrations of 160 mg/m (32 ppm) in air cause severe irritation of the eyes and respiratory tract (68). 

This concentration should be compared against permissible exposure limits estabhshed by OSHA (Occupational Safety and Health Act) and allowable discharges limits set by federal (EPA) and local emissions regulations. 

OSHA. 1989, Air Contaminants Permi.ssible Exposure Limits. Title 29 Code of Federal Regulations, Part 1910.1000. U.S. Department of Labor. OSHA 3112. 

Neither propane nor butane is toxic, but they do possess anaesthetic properties. There is a threshold limiting value for LPG at 1000 ppm given as an occupational exposure standard in OSHA regulations, for an 8-hour time-weighted average. 

Trichloroethylene levels in the workplace are regulated by the Occupational Safety and Health Administration (OSHA). The occupational exposure limit for an 8-hour workday, 40-hour workweek, is an average concentration of 100 ppm in air. The 15-minute average exposure in air that should not be exceeded at any time during a workday is 300 ppm. The OSHA standards are based on preventing central nervous system effects after trichloroethylene exposure. For more information, see Chapter 7. 

Mineral oil is the major chemical component of mineral oil hydraulic fluids. Mineral oil belongs to a larger class of chemicals called petroleum distillates. The Occupational Safety and Health Administration (OSHA) regulates petroleum distillate and mineral oil mist levels in workplace air. The occupational exposure limits for an 8-hour workday, 40-hour workweek are 2,000 milligrams per cubic meter (mg/m3) in air for petroleum distillates and 5 mg/m3 for mineral oil mists. The National Institute for Occupational Safety and Health (NIOSH) recommends an exposure limit of 350 mg/m3 of petroleum distillates for a 10-hour workday, 40-hour workweek. 

Regulations found for mineral oils include the OSHA occupational exposure limit for mineral oil mists of 5 mg/m3 (OSHA 1974). 

OSHA regulations limit the concentration of lead in workroom air to 50 ig/m3 for an 8-hour workday. If a worker has a blood lead level of 50 ig/dL, then OSHA requires that worker be removed from the workroom where lead exposure is occurring. 

OSHA ozone exposure limits, 17 815 OSHA Permissible Exposure Level (PEL), for sulfuric acid, 23 795 OSHA regulations, for vinyl chloride, 25 650, 651... 

NI0SH = National Institute of Occupational Safety and Health NSPS = New Source Performance Standards ODW = Office of Drinking Water OERR = Office of Emergency and Remedial Response 0PP = Office of Pesticide Programs OSHA = Occupational Safety and Health Administration 0SW = Office of Solid Waste OWRS = Office of Water Regulations and Standards PEL = Permissible Exposure Limit PSNS =... 

Exposure limits The permissible exposure limits (PELs) in air, set by the Occupational Health and Safety Administration (OSHA), can be found in the Code of Federal Regulations (General Industry Standards for Toxic and Hazardous Substances, 1977). Unless noted otherwise, the PELs are 8-h time-weighted average (TWA) concentrations. 

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