Polonium: A radioactive element that occurs in pitchblende and other uranium-containing ores.
Polyelectrolytes: Synthetic chemicals that help solids to clump during sewage treatment.
Polonium - 210 (Po-210)
Polonium 210 (Po-210) is an Alpha Emitter with a Half-Life of around 138 days. Po-210 is all around us in the environment at low concentrations (e.g. water, cigarette smoke, NORM, Radon etc).
The largest source of exposure to Radionuclides in northern Canada are natural sources such as Lead-210, and Polonium-210 that are present in the lichen-caribou food chain.
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.
 See also: Exposure, Hazard, Radioactive, Risk, Environment
  
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