NIOSH comments to DOL on the Mine Safety and Health Administration's proposed rule on air quality, chemical substances, and respiratory protection standards by J. D. Millar, March 1, 1990
The testimony concerns the views of NIOSH regarding the Mine Safety and Health Administration (MSHA) proposed rule on permissible exposure limits; exposure monitoring, abrasive blasting; drill dust control; dangerous atmospheres; and prohibited areas for food and beverages. NIOSH continues to endorse the recommended exposure limit of 1 part per million (ppm) as a 15 minute short term exposure limit for nitrogen-dioxide (10102440). NIOSH supports MSHA in proposing an 8 hour time weighted average of 25ppm for nitric-oxide (10102439). NIOSH supports MSHA in proposing a limit of 35ppm as an 8 hour time weighted average (TWA) for carbon-monoxide (630080) and recommends that sulfur-dioxide (7446095) exposure be limited to 0.5ppm as an 8 hour TWA. NIOSH recommends that routine air monitoring be required on a periodic basis. NIOSH recommends that mine operators be required to establish a written exposure monitoring plan for each facility that outlines where area and personal samples should be taken, how many samples should be taken, and the implementation of the remaining portions of the proposed rule change. NIOSH supports the rules for abrasive blasting for both coal and metal/nonmetal mines and has identified several substitutive materials for silica sand that could be used in abrasive blasting.
- Research Organization:
- National Inst. for Occupational Safety and Health, Cincinnati, OH (United States)
- OSTI ID:
- 5674516
- Report Number(s):
- PB-91-173997/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
AIR QUALITY
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
ENVIRONMENTAL QUALITY
INDOOR AIR POLLUTION
MAXIMUM PERMISSIBLE EXPOSURE
MINING
NATIONAL ORGANIZATIONS
NIOSH
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OCCUPATIONAL EXPOSURE
OXIDES
OXYGEN COMPOUNDS
POLLUTION
RECOMMENDATIONS
SAFETY STANDARDS
STANDARDS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
US ORGANIZATIONS