|
|
|
| But the problem isn’t |
||
| everywhere |
||
|
|
|
|
|
| • | Zone
1 counties have a predicted average indoor radon screening level greater
than 4 pCi/L |
|||
| Zone
2 counties have a predicted average indoor radon screening level between 2
and 4 pCi/L |
||||
| Zone
3 counties have a predicted average indoor radon screening level less than
2 pCi/L |
||||
| N5290, Sept. 27, 2004 |