Radon Mitigation >> Radon Element

Note: If you are a former smoker, your risk may be higher. Lifetime risk of lung cancer deaths from EPA Assessment of Risks from Radon Element in Homes (EPA 402-R-03-003). Comparison data calculated using the Centers for Disease Control and Prevention's 1999-2001 National Center for Injury Prevention and Control Reports. 

The Solution Why Should Every Home be Tested? The EPA and the U. S. Surgeon General recommend testing all homes below the Radon Element third floor for radon. Data gathered by the EPA national radon survey indicate that elevated radon levels are present in about six million (6,000,000) homes throughout the United States. 

In every state there are homes with dangerously high Radon Element levels. Because the radon concentration inside a home is due to factors relating to its structure and geographic location, each individual home must be tested to determine its radon level. Two adjacent houses may have radically different radon levels. 

And any kind of home can have elevated levels -- new or old, drafty or well-sealed, and basement or non-basement. How do You Obtain a Reliable Test Result? Although radon cannot be seen or smelled, with the proper equipment its presence is relatively easy to detect. The EPA operated a voluntary National Radon Element Proficiency (RPP) Program that evaluated radon measurement companies and the test services they offer until 1998. 

You can find out how to find a "qualified" radon Service Professional in your area - www.epa.gov/radon/radontest.html. radon Testing Methods The quickest way to test for radon is with a short-term "do-it-yourself" radon test kit, available by mail order and Radon Element in many retail outlets or by hiring an EPA qualified or state-certified radon tester. 

Common short-term test devices are charcoal canisters, alpha track detectors, liquid scintillation detectors, electret ion chambers, and continuous monitors. A short-term testing device remains in the home for two (2) to ninety (90) days, depending on the type of device. Because radon levels tend to vary from day-to-day and season-to-season, a long-term test is more likely than a short-term test to measure the home's year-round average Radon Element level. 

If results are needed quickly, however, Radon Element a short-term test followed by a second short-term test may be used to determine the severity of the radon problem. Long-term test devices, comparable in cost to devices for short-term testing, remain in the home for more than three (3) months. A long-term test is more likely to indicate the home's year-round average radon level than a short-term test. 

Alpha track detectors and electret ion detectors are the most common long-term test devices. radon Test Devices Charcoal canister and liquid scintillation detectors contain small quantities of activated charcoal. radon and its decay products are absorbed onto the charcoal and Radon Element are measured by counting with a sodium iodide detector or a liquid scintillation counter. 

Alpha track detectors contain a small sheet of plastic that is exposed for a period of one (1) to three (3) months. Alpha particles etch the plastic as they strike it. These marks are then chemically treated Radon Element and counted in the laboratory to determine the radon concentration. Electret ion detectors contain an electro statically charged Teflon disk. 

Ions generated by the decay of radon strike and reduce the surface voltage of the disk. By measuring the voltage reduction, the radon concentration can be calculated. Continuous monitors are active devices which need power to function. They require operation by trained testers and work by continuously measuring Radon Element and recording the amount of radon in the home. 

How To Test During a short-term test, doors and windows are closed twelve (12) hours prior to testing and Radon Element throughout the testing period. (A short-term test lasting two (2) or three (3) days should not be conducted during unusually severe storms or periods of unusually high winds.) 

The test kit is placed in the lowest lived-in level of the home, at least twenty (20) inches above the floor, Radon Element in a room that is used regularly, but not in the kitchen or bathroom where high humidity or the operation of an exhaust fan could affect the validity of the test. 

At the end of the test period, the kit is mailed to a laboratory for analysis; results are mailed back in a few weeks. In some cases, Radon Element such as real estate transactions, "qualified" or state-certified contractors conduct the radon test. The EPA's guidance Home Buyer's and Seller's Guide to radon addresses issues during real estate transactions. 

Interpreting radon Test Results 1. If the short-term test result is 4 pCi/L or higher, Radon Element conduct a follow-up test to confirm the results. 2. Follow-up with either a long-term test or a second short-term test. For a better understanding of the home's year-round average radon level, take a long-term test. If results are needed quickly, take a second short-term test. 

The higher the initial short-term result, Radon Element the more certain the homeowner can be to conduct a short-term rather than a long-term follow-up test. If the first short-term test result is several times the action level - for example, about 10 pCi/L or higher - a second short-term test should be taken immediately. 3. If the long-term follow-up test result is 4 pCi/L or more, fix the home. 

If the homeowner followed up with a second short-term test: the higher the short-term results, Radon Element the more certain the homeowner can be that the home should be fixed. The homeowner should consider fixing the home if the average of the first and second test is 4 pCi/L or higher.

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