| English | Norwegian Bokmål |
| radioactive contamination Contamination of a substance, living organism or site caused by radioactive material | radioaktiv kontaminering |
| radioactive decontamination The removal of radioactive contamination which is deposited on surfaces or may have spread throughout a work area. Personnel decontamination is also included. Decontamination methods follow two broad avenues of attack, mechanical and chemical | radioaktiv dekontaminering |
| radioactive dumping Waste generated by the emission of particulate or electromagnetic radiation resulting from the decay of the nuclei of unstable elements | radioaktivt avfallsdeponi |
| radioactive emission The release of radioactive substances into the environment deriving from nuclear installations and from mining, purification and enrichment operations of radioactive elements | radioaktivt utslipp |
| radioactive fallout The material that descends to the earth or water well beyond the site of a surface or subsurface nuclear explosion | radioaktivt nedfall |
| radioactive pollutant A substance undergoing spontaneous decay or disintegration of atomic nuclei and giving off radiant energy in the form of particles or waves, often associated with an explosion of a nuclear weapon or an accidental release from a nuclear power plant, holding facility or transporting container | forurensende radioaktivt stoff |
| radioactive substance Any substance that contains one or more radionuclides of which the activity or the concentration cannot be disregarded as far as radiation protection is concerned | radioaktivt stoff |
| radioactive tracer A radioactive isotope which, when injected into a biological or physical system, can be traced by radiation detection devices, permitting determination of the distribution or location of the substance to which it is attached | radioaktivt sporstoff |
| radioactive tracer technique | radioaktiv sporingsteknikk |
| radioactive waste Any waste that emit radiation in excess of normal background level, including the toxic by-products of the nuclear energy industry | radioaktivt avfall |
| radioactive waste management The total supervision of the production, handling, processing, storage and transport of materials that contain radioactive nuclides and for which use, reuse or recovery are impractical | styring av radioaktivt avfall |
