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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

Portage County

54406 60 23 17 8.5 31.4
  54407 68 33 7 5.7 24.0
  54410 20 9 2 9.2 105.0
  54423 98 31 38 12.4 47.0
  54443 60 19 4 4.3 19.8
  54453 2 0 0 2.5 2.5
  54454 21 3 6 8.1 41.0
  54455 657 222 214 16.1 351.3
  54457 68 17 1 3.1 14.7
  54458 1 1 0 8.0 8.0
  54467 197 76 9 4.3 21.6
  54473 50 23 13 8.8 45.0
  54475 48 12 10 6.3 25.3
  54481 1317 469 91 4.8 120.0
  54494 313 62 6 3.0 20.2
  54909 28 11 4 5.3 14.0
  54921 15 5 0 4.0 9.1
  54945 38 15 15 15.5 240.7
  54966 16 0 0 2.1 3.4
  54977 24 8 5 5.5 13.7
  54981 323 146 78 7.6 96.5
  54984 48 6 4 3.9 30.1

County Totals

 

3469

1191

524

 

351.3

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

 

 

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