2. Natural sources modified by technology
Many products are naturally radioactive and only irradiate people if they are processed before use. Fertilizers, for example, are derived from natural minerals and irradiate the people who use them. Moreover, while irradiation by cosmic rays is inevitable, operating an airline exposes people to a level of irradiation that would not exist if transport were purely terrestrial. All these activities are sources of exposure to natural radiation brought about by the development of new technologies.
2.1 Mining and quarrying
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Natural sources modified by technology
Technological sources of radiation
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Bibliography
- Recommandations of the International Commission on Radiological Protection. - ICRP Publication 60 (Annals of the ICRP Vol. 21 n˚ 1-3), 1990 Pergamon Press, Oxford, 1991. Édition française publiée sous le titre Recommandations 1990 de la Commission Internationale de Protection Radiologique, CIPR Publication 60, Pergamon Press, Oxford, 1993....
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