A study of dermatitis in trona miners and millers
Trona (sodium sesquicarbonate) is mined from an underground deposit in Wyoming and processed for use in the manufacture of glass, paper, and detergents, and in chemical applications. Trona dust is alkaline (pH 10.5) and may have an irritant effect on the respiratory airways, mucous membranes, and the skin. One hundred forty-two underground miners and 88 surface workers from one trona facility participated voluntarily in an epidemiologic and clinical study. Their mean age was 37.6 and their mean working period, 10.0 years. One half of the study participants complained of skin symptoms; dermatologic symptoms increased from twofold to fifteenfold after the subjects began trona mining. Trona dermatitis consists of pruritic, erythematous, raised, dry, and fissured lesions commonly affecting the hands, arms, and legs. A dose-response relationship was observed among underground workers. Patch testing with 10% aqueous trona and sodium carbonate was negative, suggesting that the dermatitis was primarily irritant in nature.
- Research Organization:
- Rocky Mountain Center for Occupational and Environmental Health, University of Utah School of Medicine, Salt Lake City
- OSTI ID:
- 5584583
- Journal Information:
- JOM, J. Occup. Med.; (United States), Vol. 25:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
TRONA
TOXICITY
DERMATITIS
DOSE-RESPONSE RELATIONSHIPS
EPIDEMIOLOGY
MILLING
MINERS
OCCUPATIONAL DISEASES
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATES
DISEASES
MACHINING
MINERALS
OXYGEN COMPOUNDS
PERSONNEL
SKIN DISEASES
SODIUM CARBONATES
SODIUM COMPOUNDS
560306* - Chemicals Metabolism & Toxicology- Man- (-1987)