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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

Racine County

53105 426 154 53 64.0
  53108 59 17 10 23.3
  53120 154 51 28 55.1
  53126 151 49 12 29.0
  53139 43 16 11 16.1
  53167 18 7 5 54.5
  53177 78 26 24 74.9
  53182 77 22 13 37.6
  53185 352 116 61 110.0
  53401 21 5 5 36.5
  53402 471 109 24 36.0
  53403 244 68 25 58.3
  53404 207 39 9 18.4
  53405 298 106 32 101.3
  53406 445 177 69 34.6
  53407 3 0 0 2.7
  53408 1 0 0 0.5

County Totals

 

3,048

962

381

 

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

 

 

 

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