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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

Jefferson County

53036 17 5 1 4.6 23.2
  53038 4 1 0 2.5 6.0
  53047 1 0 0 3.7 3.7
  53066 766 280 149 7.5 170.0
  53094 165 49 19 4.9 47.2
  53098 49 12 7 5.2 37.2
  53118 195 57 56 8.9 44.6
  53121 287 96 44 5.7 43.9
  53137 13 5 0 2.7 4.7
  53156 25 7 1 3.9 17.7
  53178 20 6 0 3.2 9.1
  53190 105 25 12 4.9 43.9
  53523 22 8 3 4.9 16.8
  53531 22 4 1 3.1 11.2
  53534 51 21 10 6.7 39.2
  53538 97 28 3 3.5 27.6
  53549 55 7 6 3.3 15.4
  53551 58 18 4 4.1 17.0
  53559 63 19 16 6.3 25.9
  53563 29 14 1 4.4 11.6
  53594 31 12 2 4.8 34.9

County Totals

 

2075

674

335

 

170.0

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

 

 

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