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Radium, like radon, is radioactive and is found in small quantities in nature and is hazardous to life if radiation exceeds 20-50 mSv/year. Radium is a decay product of uranium and thorium . [ 2 ] Radium may also be released into the environment by human activity: for example, in improperly discarded products painted with radioluminescent paint.
The International Radon Project (IRP) is a World Health Organization initiative to reduce the lung cancer risk around the world. The IRP released their guidance to member countries in September 2009. [ 1 ]
The World Health Organization suggests mitigation systems starting at 2.7 pCi/L of radon in the air. The WHO’s recommendations are based on a review of research by 100 scientists from 30 countries.
Radon is thus assumed to be the second leading cause of lung cancer after smoking, and accounts for 15,000 to 22,000 cancer deaths per year in the US alone. [9] [better source needed] However, the discussion about the opposite experimental results is still going on. [10] About 100,000 Bq/m 3 of radon was found in Stanley Watras's basement in 1984.
January is National Radon Action Month and the Illinois Emergency Management Agency – Office of Homeland Security said it is a good time to learn about the odorless gas. Radon occurs naturally ...
A radon storm is a day-long episode of increased atmospheric radon concentration due to moving air masses. [1] In Antarctica and over the Southern Ocean, they often occur due to the arrival of continental air from South America [2] and Africa [3] and the concept was coined to describe sudden radon concentration increases there. [4]
Radon concentration at the shores of large oceans is typically 1 Bq/m 3. Radon trace concentration above oceans or in Antarctica can be lower than 0.1 Bq/m 3, [101] with changes in radon levels being used to track foreign pollutants. [102] 10: 0.27 Mean continental concentration in the open air: 10 to 30 Bq/m 3.
The School Health Policies and Practices Study (SHPPS), conducted by the CDC in 2012, found that of schools located in counties with high predicted indoor radon levels, only 42.4% had radon testing policies, and a mere 37.5% had policy for radon-resistant new construction practices. [59]