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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

La Crosse County

54601 672 191 30 32.9
  54602 31 7 1 17.7
  54603 122 36 6 62.3
  54614 26 9 0 7.5
  54623 66 20 1 11.4
  54636 135 35 14 27.7
  54642 16 6 2 37.8
  54644 10 3 0 9.5
  54650 362 106 18 32.2
  54653 4 1 0 6.8
  54658 45 23 4 18.4
  54669 201 41 21 63.6

County Totals

 

1690

478

97

 

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

 

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