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2. Health effects of radon - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_radon

   Lung cancer is the only observed consequence of high concentration radon exposures; both human and animal studies indicate that the lung and respiratory system are the primary targets of radon daughter-induced toxicity. [1] Radon has a short half-life (3.8 days) and decays into other solid particulate radium-series radioactive

3. Radon - Wikipedia

   en.wikipedia.org/wiki/Radon

   Radon is a chemical element; it has symbol Rn and atomic number 86. It is a radioactive noble gas and is colorless and odorless. Of the three naturally occurring ...

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. Radium and radon in the environment - Wikipedia

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

   Residues from the oil and gas industry often contain radium and its daughters. The sulfate scale from an oil well can be very radium rich. The water inside an oil field is often very rich in strontium, barium and radium, while seawater is very rich in sulfate: so if water from an oil well is discharged into the sea or mixed with seawater, the radium is likely to be brought out of solution by ...

6. Air pollution - Wikipedia

   en.wikipedia.org/wiki/Air_pollution

   Radon is a colorless, odorless, naturally occurring, radioactive noble gas that is formed from the decay of radium. It is considered to be a health hazard. Radon gas from natural sources can accumulate in buildings, especially in confined areas such as the basement and it is the second most frequent cause of lung cancer, after cigarette smoking.

7. Indoor air quality - Wikipedia

   en.wikipedia.org/wiki/Indoor_air_quality

   Radon is measured in picocuries per liter of air (pCi/L) or becquerel per cubic meter (Bq m-3). Both are measurements of radioactivity. The World Health Organization (WHO) sets the ideal indoor radon levels at 100 Bq/m-3. [97] In the United States, it is recommend to fix homes with radon levels at or above 4 pCi/L.