Matt Smelt Colby Yanagi Simrat SinghSpencer Miller
Radon is cancer causing radioactive gas Radon comes from the radio active decay of uranium in soil. Can be found in anywhere within the U.S because it is found in soil, rock and water. Radon is colorless, odorless, and tasteless.
Radon can get in through: • Cracks in the foundation • Construction Joints • Cracks in walls • Gaps in Suspended floors • Gaps around pipes • Cavities inside walls • Water supply
Radon gas can cause many diseases • Cancer • Emphysema • Pulmonary fibrosis • Chronic interstitial pneumonia • Respiratory lesions Alsoindirectly can relate to silicosis through weakening of the immune system with prolonged exposure
Radon enters soil from uranium decay, uranium and phosphate mines, and also coal combustion Radon’s half life is less than four days limiting its effects Aquatic effects are unknown but it is dangerous if it enters tap water In outdoor air it is almost harmless and will dissipate within a week
Short term testing • Quickest way to test • 2 to 3 days • Provides radon levels from day to day Long term test • More than 90 days • Provide year round radon levels
Close windows and outside doors Do not operate fans or other machines that bring in air from outside (recirculation is acceptable) Doors and windows should be closed 12 hours before testing Put test kit in the lowest level floor/room Room should be regularly used
Place test 20 inches above the floor where it will not be disturbed Seal the package and send it to the specified location for testing
Testing short term radon very easy We bought one test kit and all you need to do is open the detectors and place them 6 inches apart in a specified room. This test kit was purchased at Home Depot for only $10.00 Sending in results does cost $30.00
The EPA recommends that a qualified contractor inspects the home after results of test show it is needed. • Using the wrong equipment or knowledge can create different or worse problems. Contractors will inspect the home and choose reduce radon levels
Active Subslab Suction • Suction pipes are inserted into the soil or crushed rock through the floor slab. Gas is then sucked from beneath the house with fans and ejected out of the house through pipes Passive Subslab Suction • Same as active, but instead of a fan, it uses air currents or pressure to push gas away Drain Tiles or Perforated Pipes • Used to reduce water that has mixed with radon by draining it away from the house Block-Wall suction • Requires hollow block foundation walls • Depressurized the block wall and remove radon
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