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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

Jefferson County

53036 20 5 1 23.2
  53038 18 7 0 7.6
  53066 914 325 181 170.0
  53094 369 118 53 47.2
  53118 222 64 62 44.6
  53119 143 44 48 57.4
  53137 21 8 0 8.7
  53156 44 13 1 17.7
  53178 33 9 0 9.1
  53190 152 35 28 43.9
  53523 39 14 8 29.3
  53538 265 78 10 27.6
  53549 172 39 18 21.8
  53551 100 37 10 22.1
  53594 40 16 3 34.9

County Totals

 

2552

812

423

 

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

 

 

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