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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 over many years, 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.

Estimate the fraction of houses with average occupant exposures (house bottom to top) greater than 4 pCi/L for the radon averaged over a year: divide the number in the “>10 pCi/L” column by the “Total No.” (of measurements) column.  (Average between basement and 1st floor: 40%)  For further information on the relationship,  click here.

The data listed for Zip Codes crosses county borders.

 

Wisconsin Measurement Summary - 2009

Numbers of Measurements versus Radon:

 

County

Zip
Code

No. of Measurements

High
pCi\L

Total
No.

# 4 - 10
pCi\L*

# >10
pCi\L

Green County

53502 29 3 2 14.6
  53504 110 20 21 62.2
  53508 40 11 1 16.47
  53516 44 15 7 32.2
  53520 93 16 3 13.0
  53521 46 9 7 66.0
  53522 35 21 4 22.66
  53536 97 35 5 22.4
  53550 16 1 3 12.7
  53566 475 150 74 44.38
  53570 35 8 4 40.9
  53574 137 49 45 88.8

County Totals

 

1157

338

176

 

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

 

 

 

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