Radon Decay Products
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.
Working Level (WL): A unit of measure for documenting exposure to radon decay products, the so-called "daughters." One working level is equal to approximately 200 picocuries per liter.
Decay Products- Degraded radioactive materials, often referred to as "daughters" or "progeny"; radon decay products of most concern from a public health standpoint are polonium-214 and polonium-218.
The decay products may be derived from their immediate predecessor, of through several other decays in a decay chain series. One example would be Radon Decay products where Ra-222 will decay to products including Polonium 218 (via alpha decay) and ...
radioactive decay products of radon that decay into longer-lived lead isotopes. The daughter isotopes can attach themselves to airborne dust and other particles and, if inhaled, damage the lining of the lung. Also known as radon decay products.(1) ...
 See also: Decay products, Radon, Exposure, Treatment, Waste
  
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