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Since the incident in Pennsylvania, millions of short-term radon measurements have been taken in homes in the United States. Outside the United States, radon measurements are typically performed over the long term. [66] In the United States, typical domestic exposures are of approximately 100 Bq/m 3 (2.7 pCi/L) indoors. Some level of radon will ...
The United States Environmental Protection Agency recommends action for any house with a concentration higher than 148 Bq/m 3 (given as 4 pCi/L). Nearly one in 15 homes in the U.S. has a high level of indoor radon according to their statistics. The U.S. Surgeon General and EPA recommend all homes be tested for radon.
ASTM E-2121 is a standard for reducing radon in homes as far as practicable below 4 picocuries per liter (pCi/L) in indoor air. [111] [112] In the US, approximately 14 states have a state radon programs which train and license radon mitigation contractors and radon measurement professionals.
Oct. 9—State Sen. Wayne Fontana didn't mince words. When it comes to getting a law passed requiring radon testing in schools, "I think it's going to take a tragedy of some sort," said Fontana, a ...
Radon gas in the natural gas streams concentrate as NORM in gas processing activities. Radon decays to lead-210, then to bismuth-210, polonium-210 and stabilizes with lead-206. Radon decay elements occur as a shiny film on the inner surface of inlet lines, treating units, pumps and valves associated with propylene, ethane and propane processing ...
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.
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