Cosmic radiation contributes to radiation exposure of man, in particular at high altitudes. Pilots and flight attendants may receive annual effective doses that are comparable to doses received at workplaces where ionising radiation is used or radioactive sources are handled. For this reason, the European Council Directive 96/29 EURATOM requires dose monitoring for aircraft crew members
In the Guide to the Monitoring of Radiation Exposure in Work Activities, basic legal and practical information is provided for the protection of radiation exposure in work activities, considering in particular work places with natural terrestrial radiation sources such as radon or uranium and thorium and their decay products.
