Morbidity and mortality of vermiculite miners and millers exposed to tremolite-actinolite: Part III. Radiographic findings
A study was conducted to estimate the exposure-response relationship for tremolite-actinolite fiber exposure and radiographic findings among 184 men employed at a Montana vermiculite mine and mill. Workers were included if they had been employed during 1975-1982 and had achieved at least 5 years tenure at the Montana site. Past fiber exposure was associated with an increased prevalence of parenchymal and pleural radiographic abnormalities. Smoking was not significantly related to the prevalence of small opacities. However, the number of workers who had never smoked was small, and this prevented measurement of the smoking effect. Under control for smoking and age, the prevalence of small opacities was significantly greater for vermiculite workers with greater than 100 fiber/cc-years exposure than for comparison groups (cement workers, blue collar workers, and coal miners) who had no known occupational fiber exposure. A logistic model predicted an increase of 1.3% in the odds ratio for small opacities at an additional exposure of 5 fiber-years.
- Research Organization:
- National Institute for Occupational Safety and Health, Morgantown, WV
- OSTI ID:
- 6934785
- Journal Information:
- Am. J. Ind. Med.; (United States), Vol. 1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Morbidity and mortality of vermiculite miners and millers exposed to tremolite-actinolite: Part I. Exposure estimates
X-ray findings, lung function, and respiratory symptoms in black South African vermiculite workers
Related Subjects
LUNGS
PATHOLOGICAL CHANGES
MINERS
OCCUPATIONAL DISEASES
VERMICULITE
HEALTH HAZARDS
BIOMEDICAL RADIOGRAPHY
DOSE-RESPONSE RELATIONSHIPS
MILLING
MONTANA
OCCUPATIONAL EXPOSURE
PLEURA
SILICA
SILICIC ACID
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
BODY
CHALCOGENIDES
DIAGNOSTIC TECHNIQUES
FEDERAL REGION VIII
HAZARDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON COMPOUNDS
IRON SILICATES
MACHINING
MAGNESIUM COMPOUNDS
MAGNESIUM SILICATES
MATERIALS
MEDICINE
MEMBRANES
MICA
MINERALS
NORTH AMERICA
NUCLEAR MEDICINE
ORGANS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PERSONNEL
RADIOLOGY
RESPIRATORY SYSTEM
SEROUS MEMBRANES
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
TRANSITION ELEMENT COMPOUNDS
USA
560300* - Chemicals Metabolism & Toxicology