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RADON MEASUREMENTS TABLE BY COUNTY AND ZIP CODE

The numbers of results at various radon levels, tabulated below, are from measurements in basements, up to a week in duration, while windows are kept closed.  Because there is less radon upstairs and less when windows are open, this table represents neither average resident exposures nor their lung cancer risks from radon.

The data were obtained over many years, largely from companies that sell radon detectors to the public, and are only a fraction of all radon measurements that have been made in Wisconsin.

Estimate the fraction of houses with average occupant exposures (house bottom to top) greater than 4 pCi/L for the radon averaged over a year: divide the number in the “>10 pCi/L” column by the “Total No.” (of measurements) column.  (Average between basement and 1st floor: 40%)  For further information on the relationship,  click here.

The data listed for Zip Codes crosses county borders.

Wisconsin Measurement Summary - 2009

Numbers of Measurements versus Radon:

 

County

Zip
Code

No. of Measurements

High
pCi\L

Total
No.

#  4 - 10
pCi\L*

#  >10
pCi\L

Vernon County

53929 95 20 7 120.3
  53968 168 8 8 132.2
  54619 39 6 5 18.9
  54621 28 5 6 56.1
  54623 66 20 1 11.4
  54624 28 10 4 46.9
  54628 23 6 1 11.6
  54632 41 17 11 20.5
  54634 92 22 9 16.6
  54638 40 8 3 13.6
  54639 68 17 3 26.9
  54651 32 11 4 153.8
  54652 29 2 0 4.8
  54655 33 6 1 17.3
  54658 45 23 4 18.4
  54664 56 22 3 16.9
  54665 442 136 34 60.9
  54667 155 36 20 27.5

County Totals

 

1,480

375

124

 

           * pCi/L: picoCuries per Liter, a way to measure radon concentration

 

 

 

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