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Health hazard evaluation report: HETA-91-0109-2426, Duracell Battery Company, Cleveland, Tennessee.
Hanley KW; Lenhart SW; Boudreau AY
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 91-0109-2426, 1994 May; :1-30
In response to a report from an occupational physician of suspected Parkinson like neurological effects resulting from manganese (7439965) (Mn) exposure in the powder areas of the Duracell Battery Company (SIC-3692), Cleveland, Tennessee, exposures to Mn dust and the effectiveness of the respiratory protection program were evaluated. Workers were screened for symptoms related to Mn overexposure. Press operators, mechanics, material handlers and other workers were evaluated for full shift and short term personal breathing zone dust samples. Fifty four full shift time weighted average exposure concentrations of total Mn ranged from 0.1 to 5.4mg/m3. The Recommended Exposure Limit for Mn dust was 1.0mg/m3 total Mn. Area sample comparisons of total and respirable manganese revealed the mean respirable particulate manganese fraction to be 21% of the total manganese concentration. Respiratory protection was worn by workers in the powder processing and press room areas. Respirator performance was evaluated. Six of the employees from the powder processing area and press rooms, 8% of the total number, participated in private medical interviews. All denied awareness of symptoms of manganism, and none showed signs of the disease. The authors recommend measures for controlling exposure, including installing additional process enclosures and local exhaust ventilation; ventilation design improvements; increased filtration of recirculated air; elimination of dry sweeping; and medical surveillance of manganese exposed workers.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-91-0109-2426; Region-4; Hazard-Confirmed; Metal-dusts; Dust-control; Dust-exposure; Industrial-hygiene; Occupational-exposure; Nervous-system-disorders; Battery-manufacturing-industry; Author Keywords: Dry cell battery manufacturing; manganese dioxide; dust; manganism; Parkinson-like symptoms; neurological disorder; respirator in-mask sampling; program protection factor; particle sizing; Marple Impactors
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health
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Content source: National Institute for Occupational Safety and Health Education and Information Division