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Health hazard evaluation report: HETA-93-1092-2461, UNR-Rohn Manufacturing, Peoria, Illinois.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HETA 93-1092-2461, 1994 Sep; :1-29
In response to a confidential request, an investigation was begun into reports of headaches and nausea in workers in the galvanizing department at UNR-Rohn Manufacturing (SIC-3479), Peoria, Illinois. The facility manufactured solid member hot dip galvanized towers and did customized galvanizing work. The company employed 51 workers in the galvanizing department. Personal breathing zone samples for zinc (7440666), cadmium (7440439), chromium (7440473), ammonia (7664417) and aluminum (7429905) all were well below the allowable limit. Samples for lead (7439921) ranged from trace to 56.1 micrograms/cubic meter (microg/m3) of air; the OSHA permissible exposure limit (PEL) was 50microg/m3. Surface wipe samples were collected and found to contain zinc at a range of 5.3 to 331mg/m2, lead from nondetectable to 16.3mg/m2, chromium ranging from nondetectable to 4.6mg/m2, and nondetectable for cadmium. The author concludes that workers were potentially exposed to lead levels in excess of the PEL. The author recommends that surface metal contamination levels should be kept at a minimum in areas such as the break area and rest rooms. Cadmium concentrations should be kept to the lowest feasible limit. Exposure monitoring should be continued, and improvements made in worker personal hygiene, and workplace cleanliness.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-93-1092-2461; Region-5; Hazard-Confirmed; Heavy-metals; Occupational-exposure; Metal-finishing; Industrial-hygiene; Author Keywords: hot-dip galvanization; zinc; lead; cadmium; aluminum; chromium; sulfuric acid; hydrochloric acid; ammonia; galvanizing
7440-66-6; 7440-43-9; 7440-47-3; 7664-41-7; 7429-90-5; 7439-92-1
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division