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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

Grant County

53518 83 26 6 3.7 13.9
  53543 44 17 4 4.3 17.0
  53554 21 7 2 4.1 13.6
  53569 43 14 5 4.8 34.6
  53573 111 12 1 2.1 14.8
  53801 14 5 0 3.8 9.4
  53802 1 0 0 1.9 1.9
  53804 32 13 2 4.3 10.3
  53805 87 12 0 2.2 7.8
  53806 66 27 7 5.1 14.4
  53807 150 66 13 5.2 24.7
  53808 22 12 1 4.3 11.5
  53809 100 44 10 5.6 30.0
  53810 15 6 1 4.0 11.6
  53811 69 32 4 4.7 21.4
  53812 19 11 3 7.9 24.9
  53813 448 207 55 5.8 36.5
  53816 17 4 4 6.9 25.0
  53818 178 65 23 5.6 89.1
  53820 99 40 9 5.1 29.9
  53821 83 28 15 6.2 27.8
  53825 17 5 0 3.7 9.8
  53826 13 3 3 5.4 16.8
  53827 3 2 0 5.6 8.6
  53830 1 0 0 0.2 0.2
  53863 1 1 0 4.8 4.8
  53866 1 0 0 1.1 1.1
  53878 1 1 0 5.9 5.9
  53895 1 0 0 3.3 3.3

County Totals

 

1937

739

190

 

89.1

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

 

 

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