• If the level is under 4 pCi/L, you don’t need to take any action. Because radon levels can change depending on the season you may want to retest your home in six months to see if the level changes.

• Even if your level is under 4 pCi/L, you can take steps to reduce exposures to radon in your home — there is no safe level of radon.

• If the level is 4 pCi/L or higher, do a second test to check your results.

• If the second test result is 4 pCi/L or higher, you should take steps to lower the levels of radon in your home.

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How do I lower the radon levels in my home?

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• The way to lower radon levels is to…

  • improve airflow in the house

  • push radon gas to the outside

  • keep radon from getting into your home

• For information on lowering radon levels, visit the California Department of Public Health’s Indoor Radon Program website.

 

What’s next?

 

• Be sure to test your home after any repairs are done to make sure radon levels are lower.

• It’s a good idea to test every two years to make sure radon levels stay low.