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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

Green County

53502 22 2 2 3.7 14.6
  53504 64 20 20 9.1 62.2
  53508 35 8 1 3.0 16.5
  53516 36 12 6 6.5 32.2
  53520 58 2 2 2.0 12.4
  53521 35 7 3 5.7 45.1
  53522 17 9 1 5.7 22.7
  53544 28 9 3 5.9 35.1
  53550 11 1 3 5.5 12.7
  53566 341 100 41 5.7 44.4
  53570 26 6 0 2.9 7.7
  53572 87 26 18 5.6 20.5
  53574 93 35 26 9.9 88.8
  53587 20 7 5 7.2 25.4

County Totals

 

873

244

131

 

88.8

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

 

 

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