This research deals with the assessment of the risk to which air traffic is
exposed in zones of increased level of radioactive radiation. Natural
disasters and war conflicts, which take place around nuclear power plants
and the radioactive area (Chernobyl), create fear that large amounts of
radioactive material may be released into the atmosphere. The paper analyzed
the effects of: the efficiency of the HEPA filter in relation to the size of
the radioactive dust particles, radioactivity on the aircraft
instrumentation, radioactivity on the engine and the contribution of the
engine in the spread of radioactivity to the crew in the aircraft. An
assessment of the risk of exposure to radioactive radiation in the aircraft
was put in perspective, depending on the type of aircraft and the dose of
radiation.