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What is a safe level of radon?
Tuesday, March 24, 2020
Less than 4.0 picocuries per liter of air (pCi/L) is considered a reasonably safe level for indoor air by the United States Environmental Protection Agency (EPA). The World Health Organization (WHO) sets a lower maximum of 2.7 pCi/L.
But neither of these numbers is offered as being absolutely safe, because just a small amount of radon breathed into the lungs will cause some radioactive damage; and that damage may—or may not—lead to lung cancer. Even outdoor air contains an average of 0.7 pCi/L. So while you can’t completely avoid radon exposure, which is the only way to be 100% safe, reduction is a sensible goal.
For a more detailed explanation of the risks of radon exposure, go to our blog post What radon level is dangerous?
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Here’s links to a collection of our blog posts about “RADON":
• Can a radon test result be wrong?
• Is a radon mitigation fan required to be on a dedicated circuit breaker/fuse in the electric panel?
• Where do I find the Florida laws regarding radon?
• Can I test vacant land for radon before building a house?
• Is radon mitigation possible for a condominium?
• Do radon mitigation systems require maintenance?
• What is the average life expectancy of a radon mitigation system?
• Do older houses have higher radon levels than new houses?
• Can the seller tamper with a homebuyer's radon test to change the results?
• How long does it take to get the results of a radon test?
• Will opening the windows reduce the radon level in a house?
• Can a homebuyer do their own radon test for a real estate transaction with a self-test kit?
• What is the danger of radon in well water?
• What are the symptoms of radon poisoning?
• For how many years does an old radon test result remain valid?
• Should homeowners get a pre-listing radon test before selling their home?
• What are a homebuyer's options when the radon test comes back high (4.0 pico-curies/liter or more)?
• Do granite countertops emit radon?
• How can I tell if a house has a radon mitigation system?
• Can a mobile/manufactured home have a high radon problem?
• Do I need to test for radon when buying a condominium?
• What does a radon mitigation contractor do to lower the radon level in a home?
• How can not testing for radon be an expensive mistake for homebuyers?
• Will the radon test come back sky-high in a house that has been empty and closed-up for months?
• What is radon? Should I be concerned about it?
• Should I buy a house with a high radon level?
• What is the average radon level of indoor and outdoor air in America?
• What is the operating cost of a radon mitigation system?
• Should I buy a house with a radon mitigation system?
• Does the buyer or seller of a home pay for radon mitigation when the radon test comes back high?
• What is the probability of having high radon in a Florida house?
• How quickly do I need to reduce a high radon level in my house?
• Does a home inspector check for radon?
• What are the problems with underground return air ducts?
• What is the probability of having high radon in a Florida house?
• What factors can change radon test levels up or down?
• How do I know if a radon mitigation system is working?
• Can I sell a house with a high radon level?
• Does heavy rain change radon levels?
• Does barometric pressure change radon levels?
• Do high winds affect radon levels?
• What radon level is dangerous?
Visit our RADON page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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