noun
radioactive contamination
Refers to contamination by radioactive substances, often used in environmental, medical, and disaster contexts.
福島第一原発事故による放射能汚染が広範囲に及んだ。
Radioactive contamination from the Fukushima Daiichi nuclear accident spread over a wide area.
食品の放射能
Testing for radioactive contamination of food is being carried out.