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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

Sauk County

53503 18 6 1 4.6 34.7
  53506 25 3 0 2.2 8.2
  53556 59 0 0 1.4 3.3
  53560 37 6 0 2.4 6.3
  53561 15 6 0 3.5 7.7
  53577 7 3 1 4.2 10.6
  53578 97 15 4 3.0 16.7
  53581 952 169 29 2.8 34.9
  53583 46 13 4 4.1 17.0
  53588 64 10 8 5.8 44.2
  53901 208 11 0 1.7 8.6
  53913 265 57 27 7.3 510.0
  53924 63 16 11 6.7 39.3
  53937 21 8 1 4.1 18.1
  53940 8 0 0 1.5 3.4
  53941 35 6 4 4.3 37.4
  53943 21 2 2 3.8 33.9
  53944 33 2 0 1.3 5.8
  53951 23 7 4 4.9 17.0
  53959 186 23 15 3.6 61.8
  53961 7 3 0 3.6 6.3
  53965 189 18 1 1.8 16.4
  53968 119 6 1 1.3 20.2

County Totals

 

2498

390

113

 

510.0

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

 

 

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