No abstract available.
Coal* ; Germany*

No abstract available.
Coal* ; Rhabdomyolysis*

No abstract available.
Coal* ; Mortality* ; Pneumoconiosis*

Anthracosis* ; Coal* ; Humans ; Immunoglobulins

No abstract available.
Coal* ; Pneumoconiosis* ; Rheumatoid Factor*

400 workers in 4 coalmines were investigated, on the medical records, physical and laboratorial examinations. Working environment was studied. The common diseases observed are silicopneumoconiosis (5.82%) and mycodermatitis (64.69%).
Environment ; Coal ; Health status

A survey on chemical and physical factors was conducted in November 1996. The samples of air, water and dust were analysed at the Institute of Occupational Medicine. Results showed that: the conditions of air ventilation, microclimate, light, noise and air pollution, dust at 7 working places in tunnels of Yaly hydroelectric plant were not compatible with allowed hygienic standards.
Environment ; Coal ; Health status

The study was conducted on workers in Na Duong coal mine, Lang Son province to investigate the working environment, health status and diseases. The results showed that working environment was contaminated by toxics that were above allowed limits, such as high silic dust level. Some common diseases were ear-nose-throat diseases, accounting for 77.2%, eye diseases 39.9%, digestion 17.8%, heart diseases 15.1%, and respiratory diseases 14.1%. Among respiratory diseases, silic dust-related one was significant. The rate in the mine neighborhood area was 10% and at the working site was 11%. Coal mine workers’ health was a little below the average compared with other domestic manufacturing sectors, nobody had health status at level I.
Environment ; Health ; Coal Mining

OBJECTIVES: The incidence rate of pneumoconiosis among retired coal miners was studied at Taebackchungang hospital. METHODS: Newly developed pneumoconiosis0=1/0) cases were gathered from films of ex-coal miners who were diagnosed as normal at the previous examination after retirement. RESULTS: 228 exminers were confirmed as normal at the previous examination after retirement. 37 ex-miners were diagnosed as pneumoconiosis (equal or greater than 1/0) at the next examination. CONCLUSIONS: The incidence rate was 29.5/1000 person-year. The incidence was calculated by the examined year. In 1995, 1996, 1997, the incidence rates were 104. 8, 37. 1, 14.1 per 1000 person-year respectively. There was no development of pneumoconiosis among retired coal miners who retired more than 20 years ago or who worked less than 10 years.
Coal* ; Incidence* ; Pneumoconiosis* ; Retirement

These radiologic studies were carried out on 265 cases of silicosis which were diagnosed clinically atindustrial Accident Hospital affiliated with Catholic Medical Collage, suring the period of 3 years from 1974 to1976. 265 cases of silicosis consisted of 96 cases (35%) of coal miner, 91 cases (34%) of coal choicer and 82cases (31%) of others. The average age was 42.2 years and average working period was 9.2years. Qualitative andquantitative features in the analysis of roentgen findings were based on UICC/Cincinnati and KLO classification.The qualitative features showed 26% of "p" opacity, 46% of "q" opacity 4% of "r" opacity as rounded profusion and5% of "s" opacity, 11% of "t" opacity, 2% of "u" opacity as irregular profusion of small opacities.Large opacitiesshowed 3% of group A, 2% of group B and 1% of group C. Quantitative features revealed 25% of Type 1, 54% of Type2, 16% of Type 3 and 5% of Type 4. The qualitative and quantitative features showed significant differences as ageand working period increased with age and working period. Major complications were pulmonary emphysema,tuberculosis and pleural abnormalities.
Coal ; Miners ; Silicosis