Many states provide free-of-charge radon detection kits such as the charcoal canister. Congress has mandated that each state set up an office to deal with requests for radon assistance. Radon is also released from materials inside the homes, such asĬooking with a gas stove and showering are household activities during which radon may be released from gas and water to the air (see water and natural gas above). The following list and graphics were extracted from EPA 2009, A Citizen’s Guide to Radon, external icon (accessed 4-24-2010).įigure 1. This can especially occur during a temperature inversion, which reduces radon’s escape potential from a building and thereby increases the indoor radon level. Radon gas can enter a building and then become trapped indoors. homes, have concentrations of radon above 4 picocuries per liter (pCi/L) (EPA 2009c). Environmental Protection Agency (EPA) estimates that 6%, or approximately 6 million U.S. Exhaust fans (kitchen, bathroom, and clothes dryers), andīasements and crawl spaces under the houses allow more opportunity for entry of radon gas from soil.The pressure-driven mechanism occurs when radon escaping the soil encounters a negative pressure in the home relative to the soil. Water supply, especially from private wells.Pressure-driven flow of air in the home-the most important mechanism-and.Gas appliances, even if they are properly vented,.Homes with increased levels of radon have been found in all zones. Radon can be removed from a home by installing a Radon Mitigation System which is used to reduce radon concentrations in the breathing zones of occupied buildings.All homes should be tested regardless of geographic location.Every state in the United States has homes with measured radon levels above the EPA recommended concentration.
0 Comments
Leave a Reply. |