Respiratory status of surface coal miners in the United States
| Autor: | O'Brien Rj, E P Shoub, Amandus He, Fairman Rp, Swecker S |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Adult
Male Pathology medicine.medical_specialty Vital capacity Chronic bronchitis Vital Capacity Pulmonary function testing Environmental health Forced Expiratory Volume medicine Environmental Chemistry Humans Coal Lung Diseases Obstructive Bronchitis General Environmental Science business.industry Pneumoconiosis Smoking Public Health Environmental and Occupational Health Coal mining Age Factors Environmental Exposure Airway obstruction Middle Aged medicine.disease Coal Mining United States Occupational Diseases Radiography business |
| Zdroj: | Archives of environmental health. 32(5) |
| ISSN: | 0003-9896 |
| Popis: | The United States Public Health Service examined 1,438 surface coal miners to determine the prevalence of coal worker's pneumoconiosis (CWP), chronic bronchitis, and ventilatory impairment among them. Four percent (fifty-nine individuals) showed some roentgenographic evidence of pneumoconiosis, but only seven miners had films interpreted as CWP of category 2 or greater (according to the UICC/Cincinnati classification system). Moreover, most of the affected miners had worked in underground coal mines for prolonged periods. Significant decrements in pulmonary function to increasing exposure to surface mine dust were demonstrated only in the forced vital capacity of smokers. Increased prevalence of chronic bronchitis with increasing exposure was found in all smoking categories. However, significant airway obstruction was an uncommon finding (6.6%) in nonsmoking miners. Employment in surface mining was not likely to cause either the development of CWP or clinically significant respiratory impairment. |
| Databáze: | OpenAIRE |
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