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2. Health effects of radon - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_radon

   Radon is responsible for the majority of public exposure to ionizing radiation. It is often the single largest contributor to an individual's background radiation dose, and is the most variable from location to location. Radon gas from natural sources can accumulate in buildings, especially in confined areas such as attics and basements.

3. Radium and radon in the environment - Wikipedia

   en.wikipedia.org/wiki/Radium_and_radon_in_the...

   In a working mine, the radon level can be controlled by ventilation, sealing off old workings and controlling the water in the mine. The level in a mine can go up when a mine is abandoned; it can reach a level which can cause the skin to become red (a mild radiation burn). The radon levels in some of the mines can reach 400 to 700 kBq m −3. [17]

4. What is radon? The radioactive gas is found in homes across ...

   www.aol.com/news/radon-radioactive-gas-found...

   Radon, a byproduct of naturally decaying uranium, is estimated to cause thousands of deaths each year nationwide. Here's how to protect yourself.

5. Environmental radioactivity - Wikipedia

   en.wikipedia.org/wiki/Environmental_radioactivity

   Radium and radon are in the environment because they are decay products of uranium and thorium. The radon (222 Rn) released into the air decays to 210 Pb and other radioisotopes, and the levels of 210 Pb can be measured. The rate of deposition of this radioisotope is dependent on the weather.

6. Radon mitigation - Wikipedia

   en.wikipedia.org/wiki/Radon_mitigation

   A typical radon test kit Fluctuation of ambient air radon concentration over one week, measured in a laboratory. The first step in mitigation is testing. No level of radiation is considered completely safe, but as it cannot be eliminated, governments around the world have set various action levels to provide guidance on when radon concentrations should be reduced.

7. Radon - Wikipedia

   en.wikipedia.org/wiki/Radon

   Radon is a chemical element; ... In the US, the problem of indoor radon received widespread publicity and intensified investigation after a widely publicized incident ...