The table below shows some radon levels measured in resi-dences.
For values greater than or equal to 4 pCi/L, action should be taken
to reduce the concentration of radon gas. For values greater than or
equal to 3 pCi/L, retesting is recommended.
|DB's house, basement||15.6||Action should be taken!|
|ID's house, 2nd floor bedroom||3.7||Should be retested.|
|FJ's house, 1st floor living room||0.9||No action required.|
|MB's house, 2nd floor bedroom||2.9||No action required.|