HHE determination report no. MHETA-80-101-9001, Jones and Laughlin Steel Corporation, Vesta No. 5 General Machine Shop, Mine ID No. 3600960, Fredericksburg, PA.
Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, MHETA 80-101-9001, 1982 Jan; :1-26
Worker exposure to toxic metal fumes, flux fumes, and gases generated during routine welding and cutting operations at Jones and Laughlin Steel Corporation Vesta No. 5 General Machine Shop (SIC- 1211) in Fredericksburg, Pennsylvania, was studied. The investigation was requested by the United Mine Workers of America and was performed on November 14 and 15, 1979. The study was prompted by worker concern over a possible excess of mortality among welders in the shop. A total of 17 welders and 1 blacksmith worked in the welding shop. Some welders were exposed to inorganic nickel (7440020) in concentrations higher than the NIOSH recommended standard of 15 micrograms per cubic meter (mg/m3). Most of the welders were exposed to hexavalent chromium (18540299) in concentrations above the American Conference of Governmental Industrial Hygienists standard of 0.5mg/m3. Three of five 15 minute personal samples exceeded the NIOSH recommended limit of 1.8mg/m3 for nitrogen-dioxide (10102440). It was concluded that there was significant overexposure to nickel, hexavalent chromium, and nitrogen-dioxide. If the shop were to reopen, recommendations involving local exhaust ventilation, other control measures and process design changes should be implemented.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; MHETA-80-101-9001; Hazards-Confirmed; Welding-industry; Welders; Heavy-metals; Region-3; Nitrogen-compounds; Respiratory-protective-equipment; Time-weighted-average-exposure;
Author Keywords: Bituminous Coal Mine; Welding; nickel; hexavalent chromium; nitrogen dioxide
7440-02-0; 18540-29-9; 10102-44-0
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health