WHY TEST FOR RADON IN CHICAGO AREA
Radon is a colorless, odorless gas that cannot be detected by human senses. It is found naturally in some soils and rocks. It is formed from the decay of naturally occurring radioactive materials such as uranium. Since radon is not chemically reactive with most materials, it will move freely as a gas. The earth is the source of all radon gas in our atmosphere.
Air pressure inside your home is usually lower than the pressure in the soil around your home's foundation. Because of this difference in pressure, your house acts like a vacuum, drawing radon in through foundation cracks and other openings. Your home then traps the radon inside, where it can build up.
Excessive and prolonged radon exposure has been linked to lung cancer. The first step is taking a measurement to see if there is a problem. If radon levels in the basement or first floor are too high, steps can be taken to control the levels of this dangerous gas.
The amount of radon in the air is measured in "picocuries per liter of air," or "pCi/L." The national average for indoor air radon measurement is 1.3 pCi/L. The EPA recommends professional radon mitigation when concentrations is 4.0 pCi/L or higher.
Elevated radon levels have been found in every state. Here in Illinois, dangerous levels have been found in every county.
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