What Is A Safe Level Of Radon?

How long does radon take to affect you?

If a person has been exposed to radon, 75 percent of the radon progeny in lungs will become “harmless” lead particles after 44 years.

When an alpha particle damages a cell to make it cancerous, the onset of lung cancer takes a minimum of 5 years but most often 15 to 25 years, and even longer..

How do you lower radon levels in a basement?

Builders can minimize radon entry into the home by:Installing a sealed plastic (polyethylene) membrane under the foundation floor slab or on top of exposed soil in crawl spaces. … Sealing the basement floor/foundation wall expansion joint.More items…•

Is radon level of 8 bad?

Although it is not possible to radon-proof a house, it is possible to reduce the level. In high radon areas, if the average level is higher than 4-8 pCi/liter (NCRP recommended level is 8 pCi/liter; EPA recommended level is 4 pCi/liter), appropriate action is advised.

What is the highest radon level in a home?

The most recent reading is more than double the highest level recorded in 2014, when the DEP announced a number of Center Valley homes were found to have radon levels greater than 1,000 pCi/L. At that time, the highest reading was 2,750 pCi/L.

What are the symptoms of radon in your home?

Is it true that radon poisoning can give you cancer?persistent cough.coughing up blood.wheezing.shortness of breath.hoarseness.chest pain, especially when you cough or laugh.frequent infections such as bronchitis and pneumonia.

Is a radon level of 5 bad?

Safe radon levels. The best radon level measurement would be zero. … The average global outdoor radon level varies between 5-15 Bq/m3, equal to 0.135-0.405 pCi/L. For every 99.9 Bq/m3, or every 2.7 pCI/L increase in long term radon exposure, lung cancer risk rises 16%4.

How bad is a radon level of 10?

Radon Risk If You SmokeRadon LevelIf 1,000 people who smoked were exposed to this level over a lifetime*…10 pCi/LAbout 150 people could get lung cancer8 pCi/LAbout 120 people could get lung cancer4 pCi/LAbout 62 people could get lung cancer2 pCi/LAbout 32 people could get lung cancer4 more rows•Jul 24, 2019

Do air purifiers reduce radon?

Air Purifiers and Radon While air purifiers are routinely recommended to allergy sufferers for filtering the air of particles like pollen, pet dander, mold spores, dust mite allergen, and the like, air purifiers can also help purify your indoor air of toxic chemicals and gases, including radon.

Does opening windows reduce radon?

Opening windows improves air circulation and ventilation, helping move radon out of the house and mixing radon-free outside air with indoor air. … Opening basement windows helps reduce negative air pressure, diluting radon with clean outdoor air.

What is a high level of radon?

Radon levels are measured in picocuries per liter, or pCi/L. Levels of 4 pCi/L or higher are considered hazardous. Radon levels less than 4 pCi/L still pose a risk and in many cases can be reduced, although it is difficult to reduce levels below 2 pCi/L.

What is considered a safe level of radon?

According to the EPA, the maximum “acceptable” level of radon is 4.0 pCi/L, but even that level is not “safe”, per se. The EPA strongly recommends you consider radon mitigation between levels 2.0 and 4.0. For perspective, the average outdoor air level of radon is 0.4 pCi/L.

Is 3.6 Radon bad?

Long-term radon testing revealed that the radon level near our countertops is very low but the level in the basement is 3.6 picocuries per liter. … The EPA also says that radon levels below that can still pose a health risk and recommends that you consider remediation when the level is above 2 and under 4 pCi/L.