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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 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.  

For estimating the fraction of houses with average occupant exposures greater than 4 pCi/L for the radon averaged over a year on the main floor: divide the number in the “>10 pCi/L” column by the number in the “Total No.” (of measurements) column.  For more information on that relationship, click here. 

The data listed for Zip Codes crosses county borders.

Wisconsin Measurement Summary - 2006

Numbers of Measurements versus Radon:

County

Zip
Code

No. of Measurements

Ave.
pCi\L

High
pCi\L

Total
No.

# 4 - 10
pCi\L*

# >10
pCi\L

La Crosse County

54601 359 103 16 3.6 32.9
  54602 29 5 1 3.6 17.7
  54603 50 10 1 3.4 42.3
  54614 13 4 0 2.9 5.8
  54621 4 0 3 9.4 11.7
  54623 13 4 0 3.7 8.0
  54630 15 4 5 10.0 35.2
  54636 30 4 4 4.7 27.7
  54642 6 2 1 6.0 19.5
  54644 6 1 0 1.6 4.2
  54650 147 45 6 3.9 32.2
  54653 2 1 0 4.4 6.8
  54656 108 18 1 2.3 10.8
  54658 20 9 3 6.0 18.4
  54661 17 6 0 3.3 7.8
  54667 67 14 10 5.6 27.5
  54669 36 9 9 9.7 63.6

County Totals

 

922

239

60

 

63.6

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

 

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