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Occupation related fire fighter hearing loss
American Industrial Hygiene Association Journal
|September 1, 1981
Summary
Firefighters experience significant hearing loss due to occupational noise exposure, particularly at higher frequencies. This study recommends a hearing conservation program to mitigate risks for fire service personnel.
Area of Science:
- Occupational Health
- Audiology
- Environmental Health
Background:
- Firefighters are exposed to high noise levels during their duties.
- Hearing loss is a common occupational hazard in noisy professions.
- Previous studies suggest a link between noise exposure and hearing impairment.
Purpose of the Study:
- To assess the impact of noise exposure on hearing loss in Los Angeles City firefighters.
- To identify specific frequencies affected by occupational noise.
- To determine if lifestyle factors contribute to hearing threshold changes.
Main Methods:
- Conducted a noise exposure survey among 750 firefighters.
- Performed audiometric assessments to measure hearing thresholds.
- Collected medical history and lifestyle data.
Main Results:
- Evidence of excess hearing loss at 3000Hz, 4000Hz, and 6000Hz.
- Hearing loss exceeded age-related norms for the general population.
- Medical history and lifestyle factors did not significantly correlate with hearing changes.
Conclusions:
- Occupational noise overexposure is a likely cause of increased hearing loss in firefighters.
- A hearing conservation program is recommended for the fire service.
- Protecting firefighter hearing is crucial for long-term health and well-being.