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This month, the EPA wants you to think about the air you breathe and take action against a health threat you probably didn't know existed: Radon gas. Along with the many useful and sometimes ...
The radon levels in some of the mines can reach 400 to 700 kBq m −3. [17] A common unit of exposure of lung tissue to alpha emitters is the working level month (WLM), this is where the human lungs have been exposed for 170 hours (a typical month worth of work for a miner) to air which has 3.7 kBq of 222 Rn (in
The following is a list of notable month-long observances, recurrent months that are used by various governments, groups and organizations to raise awareness of an issue, commemorate a group or event, or celebrate something.
Radon experiments at the Radium Institute in Paris, 1924. Radon is a naturally occurring radioactive noble gas discovered in 1900 by Friedrich Ernst Dorn (1848-1916) and is considered carcinogenic. Radon is increasingly found in areas with high levels of uranium and thorium in the soil. These are mainly areas with high granitic rock deposits.
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tUrn Climate Crisis Awareness and Action Week [182] April 19–23, 2021 Great Backyard Bird Count: 2025 date, February 14–17 Invasive Species Awareness Week [183] Last Week of February Green Office Week: 2016 date, April 18–22 Keep Australia Beautiful Week [184] Last Full Week of August National Green Week
Radon was discovered in 1899 by Ernest Rutherford and Robert B. Owens at McGill University in Montreal. [48] It was the fifth radioactive element to be discovered, after uranium, thorium, radium, and polonium. [49] [50] [51] In 1899, Pierre and Marie Curie observed that the gas emitted by radium remained radioactive for a month. [52]
Because high levels of radon have been found in every state of the United States, [18] testing for radon and installing radon mitigation systems has become a specialized industry since the 1980s. Many states have implemented programs that affect home buying and awareness in the real estate community; however, radon testing and mitigation ...