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Medical helicopters: carbon monoxide risk?
Aviation, Space, and Environmental Medicine
|February 1, 1987
Summary
Medical helicopter operations pose risks. Exposure to carbon monoxide (CO) and jet fuel vapors beneath the rotors can cause mild illness in personnel.
Area of Science:
- Aviation Safety
- Occupational Health
- Environmental Monitoring
Background:
- Medical helicopters are essential for emergency transport.
- Personnel working near helicopter rotors may be exposed to engine exhaust.
- Previous observations suggested potential health effects from this exposure.
Purpose of the Study:
- To quantify carbon monoxide (CO) levels beneath a helicopter rotor.
- To assess potential health risks for ground personnel.
Main Methods:
- Measured CO concentrations at various locations under a jet helicopter rotor.
- Evaluated levels under two different engine operating conditions.
Main Results:
- CO levels varied significantly based on sampling location and engine speed.
- Measured concentrations ranged from 8 to 76 parts per million (ppm).
Conclusions:
- Carbon monoxide exposure beneath helicopter rotors is a significant concern.
- Inhalation of jet fuel vapor also presents a potential risk.
- Safety protocols should address airborne contaminants for ground crew.