Radon progeny

Radon Progeny Integrated Sampling. Respirable Particulates. Responsible Party
RPAR
RPM ...

Radon Daughters/Radon Progeny- Short-lived radioactive decay products of radon that decay into longer-lived lead isotopes that can attach themselves to airborne dust and other particles and, if inhaled, damage the linings of the lungs.

See also: Insecticide, Abatement, Combustion, Registration, Particulate