Radon is a radioactive gas released from the normal decay of the elements uranium, thorium, and radium in rocks and soil. It is an invisible, odorless, tasteless gas that seeps up through the ground and diffuses into the air.he U.S. Environmental Protection Agency (EPA) recommends taking action to reduce radon in homes that have a radon level at or above 4 picocuries per liter (pCi/L) of air. About 1 in 15 U.S. homes is estimated to have radon levels at or above this EPA action level.
Azilda railway station is a Via Rail flag stop station located in Azilda, Ontario, in the city of Greater Sudbury community of Rayside-Balfour. It is on the Canadian Pacific Railway transcontinental main line, and is served by the regional rail Sudbury â White River train. Map 12 (PDF) (Map). 1 : 1,600,000.
Vail, Arizona. Vail is a census-designated place (CDP) in Pima County, Arizona, United States located Southeast of the nearby City of Tucson. The population was 10,208 at the 2010 census. The area is known for the nearby Colossal Cave, a large cave system, and the Rincon Mountains District of Saguaro National Park, a top tourism spot within Arizona.