POLYVINYL-CHLORIDE PNEUMOCONIOSIS - EPIDEMIOLOGICAL-STUDY OF EXPOSED WORKERS

  • 1 January 1979
    • journal article
    • research article
    • Vol. 21  (8) , 540-542
Abstract
Among 1216 workers who were employed in a polyvinyl chloride [PVC] production factory and who had had no previous dust exposure elsewhere, 20 cases of pneumoconiosis were found. Chest X-ray abnormalities were characterized by limited profusion, irregular type and low gravity. All 20 workers were exposed to high PVC dust levels. The chest X-ray changes were observed after a minimum exposure of 5 yr and, in a small percentage of cases, were associated with slight restrictive respiratory function impairments. In the whole group of workers 388 cases (31.9%) were found with non-specific X-ray abnormalities mainly related to age and smoking.

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