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Industrial Hygiene Survey Report, Rockwool Industries, Inc., Pueblo, Colorado.

PB82179797

Publication Date	1977
Personal Author	Fowler, D. P.
Page Count	86
Abstract	Worker exposures to mineral wool were surveyed at Rockwool Industries, Incorporated (SIC-3296) in Pueblo, Colorado from September 20 to 25, 1976. The facility employed 100 production and maintenance workers. The factory operated three shifts 7 days per week. First aid was given by supervisors. The factory gave pre-employment examinations and periodic examinations were given only in specific circumstances. No full time safety or industrial hygiene programs existed. Personal protective equipment included safety helmets, protective footgear and hearing devices, face shields and respirators. The time weighted average (TWA) fiber counts ranged from 0.038 to 234 fibers per cubic centimeter (f/cc). The TWA total airborne particulate concentrations ranged from 0.176 to 1.915 milligrams per cubic meter (mg/cu m). Individual fiber counts ranged from 0 to 213f/cc. Individual total airborne particulate concentrations ranged from 0.036 to 0.462mg/cu m. Zinc (7440666), manganese (7439965) and lead (7439921) concentrations ranged from less than detectable to 92 micrograms/cu m, and from less than 1 to 348 micrograms/cu m, respectively. The count median fiber diameters ranged from 1.2 to 2.0 micrometers and count median lengths ranged from 6.7 to 20 micrometers. Carbon-monoxide (630080) concentrations ranged from 4 to 30 parts per million which were below the 50ppm OSHA limit. Noise levels ranged from 76 to 110 decibels. The author notes that fiber exposures were relatively low; total particulate exposures occasionally approach the nuisance dust limit; and exposures to airborne lead and noise occasionally exceed current limits. He recommends continuation of engineering control measures and the institution of respirator training and hearing conservation programs.
Keywords	Environmental surveys Industrial medicine Exposure Toxicity Inspection Hazardous materials Zinc Manganese Lead(Metal) Carbon monoxide Toxic substances Occupational safety and health SIC-3296 CAS 7440-66-6 CAS 7439-96-5 CAS 7439-92-1 CAS 630-08-0
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 68G - Environmental Health & Safety
Corporate Authors	Stanford Research Inst., Menlo Park, CA.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
NTIS Issue Number	198213
Contract Number	PHS-NIOSH-210-76-0120

Industrial Hygiene Survey Report, Rockwool Industries, Inc., Pueblo, Colorado.

Industrial Hygiene Survey Report, Rockwool Industries, Inc., Pueblo, Colorado.
PB82179797

Publication Date	1977
Personal Author	Fowler, D. P.
Page Count	86
Abstract	Worker exposures to mineral wool were surveyed at Rockwool Industries, Incorporated (SIC-3296) in Pueblo, Colorado from September 20 to 25, 1976. The facility employed 100 production and maintenance workers. The factory operated three shifts 7 days per week. First aid was given by supervisors. The factory gave pre-employment examinations and periodic examinations were given only in specific circumstances. No full time safety or industrial hygiene programs existed. Personal protective equipment included safety helmets, protective footgear and hearing devices, face shields and respirators. The time weighted average (TWA) fiber counts ranged from 0.038 to 234 fibers per cubic centimeter (f/cc). The TWA total airborne particulate concentrations ranged from 0.176 to 1.915 milligrams per cubic meter (mg/cu m). Individual fiber counts ranged from 0 to 213f/cc. Individual total airborne particulate concentrations ranged from 0.036 to 0.462mg/cu m. Zinc (7440666), manganese (7439965) and lead (7439921) concentrations ranged from less than detectable to 92 micrograms/cu m, and from less than 1 to 348 micrograms/cu m, respectively. The count median fiber diameters ranged from 1.2 to 2.0 micrometers and count median lengths ranged from 6.7 to 20 micrometers. Carbon-monoxide (630080) concentrations ranged from 4 to 30 parts per million which were below the 50ppm OSHA limit. Noise levels ranged from 76 to 110 decibels. The author notes that fiber exposures were relatively low; total particulate exposures occasionally approach the nuisance dust limit; and exposures to airborne lead and noise occasionally exceed current limits. He recommends continuation of engineering control measures and the institution of respirator training and hearing conservation programs.
Keywords	Environmental surveys Industrial medicine Exposure Toxicity Inspection Hazardous materials Zinc Manganese Lead(Metal) Carbon monoxide Toxic substances Occupational safety and health SIC-3296 CAS 7440-66-6 CAS 7439-96-5 CAS 7439-92-1 CAS 630-08-0
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 68G - Environmental Health & Safety
Corporate Authors	Stanford Research Inst., Menlo Park, CA.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
NTIS Issue Number	198213
Contract Number	PHS-NIOSH-210-76-0120