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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

Washington County

53002 16 6 0 3.5 7.5
  53010 43 13 2 3.8 13.0
  53012 453 175 55 5.3 29.4
  53017 292 84 124 13.8 120.0
  53021 41 13 2 3.9 12.4
  53022 309 112 40 5.3 31.2
  53027 201 74 35 7.1 56.6
  53029 722 244 234 11.1 180.0
  53033 131 44 40 8.8 80.0
  53037 63 26 3 4.3 11.9
  53040 55 14 5 3.9 22.5
  53051 900 354 125 6.0 76.7
  53060 5 2 0 3.3 6.9
  53066 766 280 149 7.5 170.0
  53075 34 17 6 6.7 18.4
  53076 63 30 12 7.3 26.2
  53078 10 6 0 4.6 7.9
  53086 86 33 21 7.3 28.7
  53090 99 35 3 4.7 54.7
  53091 10 4 5 14.0 27.6
  53095 525 149 61 5.1 62.8

County Totals

 

4824

1715

922

 

180.0

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

 

 

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