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Related Experiment Videos

A longitudinal study of pulmonary function in fire fighters.

A Tepper1, G W Comstock, M Levine

  • 1Division of Surveillance, National Institute for Occupational Safety and Health, Cincinnati, OH 45226.

American Journal of Industrial Medicine
|January 1, 1991
PubMed
Summary

Firefighter pulmonary function declines significantly with mask non-use and ammonia exposure. Active firefighters show a greater decline in forced expiratory volume in 1 second (FEV1) than retired personnel.

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Area of Science:

  • Occupational Health
  • Pulmonary Medicine
  • Environmental Health

Background:

  • Firefighters face significant occupational exposures.
  • Long-term effects of firefighting on pulmonary function require further investigation.
  • Understanding risk factors for respiratory decline in firefighters is crucial for prevention.

Purpose of the Study:

  • To evaluate long-term pulmonary function changes in firefighters.
  • To identify specific exposures and work conditions associated with respiratory decline.
  • To compare pulmonary function decline between active and former firefighters.

Main Methods:

  • Longitudinal study of 632 Baltimore city firefighters with 6-10 year follow-up.
  • Spirometry used to measure forced expiratory volume in 1 second (FEV1).

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  • Exposure data collected via questionnaires and fire department records.

    • Main Results:

    • Firefighters not wearing masks during fires had 1.7x greater FEV1 decline than mask wearers.
    • Ammonia exposure was associated with 1.7x greater FEV1 decline.
    • Active firefighters experienced 2.5x greater FEV1 decline compared to retired/resigned individuals.

    Conclusions:

    • Mask use and avoidance of ammonia exposure are critical for preserving firefighter lung function.
    • Occupational exposures significantly impact long-term respiratory health in firefighters.
    • Work status (active vs. retired) is a key factor in the rate of pulmonary function decline.