A term used to refer collectively to the immediate products of the radon decay chain. These include Po-218, Pb-214, Bi-214, and Po-214, which have an average combined half-life of about 30 minutes.
RADON DECAY PRODUCTS
Meaning of RADON DECAY PRODUCTS in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012