Mechanism of Air-Flow Obstruction in Coal Miners

Details

• Personal Author:
  Lapp L ; Seaton A
• Description:
  Coal workers' pneumoconiosis (CWP) is a condition caused by inhalation and deposition of coal dust in the regions of the lungs concerned with gas exchange. In the early stages it is characterized pathologically by accumulation of dust around the first and second order respiratory bronchioles, a little surrounding fibrosis, and some dilation of the respiratory bronchioles. This latter is referred to as focal emphysema. Simple pneumoconiosis produces relatively little ventilatory impairment detectable by the standard spirometric tests unless accompanied by the presence of chronic obstructive airway disease. This latter is often a consequence of factors other than the deposition of coal dust. Most studies of the mechanical properties of the lungs have been performed on miners who were seeking medical care or industrial compensation and thus suffer from the selection bias often found in such populations. The present study was designed to investigate the mechanical properties of the lungs in working miners in order to determine what abnormalities result from simple coal workers' pneumonia itself. In particular, it was hoped to determine what the mechanism is that leads to airflow obstruction among coal miners. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Fibrosis Mining Occupational Health Safety Smokers
• Keywords:
  Bituminous Coal Coal Dust Coal Industry Coal Miners Pneumoconiosis Smoking
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRDS - Division of Respiratory Disease Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-4
• NIOSHTIC Number:
  nn:20052733
• Citation:
  Tri-State Regional Meeting American College of Physicians, October 13-14. 1972, Charleston, West Virginia. 1972 Oct; :1-4
• Federal Fiscal Year:
  1973
• Peer Reviewed:
  False
• Source Full Name:
  Tri-State Regional Meeting American College of Physicians, October 13-14. 1972, Charleston, West Virginia
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0cb9e77efedce784e82c6749819c54ba3336fe034700545ff85432041144148fb869596b90bbab313cc71f521ecbf0de7d9ce1714e69d19633d06c531f55a686
• Download URL:
  https://stacks.cdc.gov/view/cdc/212211/cdc_212211_DS1.pdf
• File Type:
  [PDF - 199.60 KB ]