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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

Dane County

53508 40 11 1 16.47
  53515 33 10 14 57.6
  53516 44 15 7 32.2
  53517 25 9 1 24.2
  53521 46 9 7 66.0
  53523 39 14 8 29.3
  53527 79 29 13 17.6
  53528 107 41 16 33.0
(*to headings) 53529 12 3 1 26.6
  53531 30 9 2 11.2
  53532 118 38 11 33.7
  53534 154 61 17 39.2
  53544 28 9 3 35.1
  53555 57 8 7 37.7
  53558 102 44 12 32.5
  53559 66 19 16 25.9
  53560 42 6 2 15.0
  53562 356 95 22 54.0
(*to headings) 53572 114 31 29 35.9
  53574 137 49 45 88.8
  53575 152 51 13 30.8
  53583 67 19 4 17.0
  53589 175 65 7 41.2
  53590 274 84 24 33.6
  53593 254 82 32 35.9
  53594 40 16 3 34.9
  53596 14 2 1 10.93
(*to headings) 53597 138 44 15 75.1
  53598 16 4 1 12.0
  53701 151 30 10 16.9
  53703 96 16 0 9.3
  53704 384 88 28 30.0
  53705 693 184 79 180.0
  53706 11 1 0 4.59
  53707 5 2 0 9.2
  53708 9 0 0 1.2
(*to headings) 53711 734 240 70 53.14
  53713 136 32 4 28.1
  53714 143 31 7 17.2
  53715 59 9 5 20.4
  53716 275 75 27 23.1
  53717 169 51 18 52.0
  53718 36 8 11 27.2
(*to headings) 53719 197 52 24 38.0
  53726 30 6 2 11.3
  53744 2 0 2 16.9
  53788 31 7 0 7.5
  53911 10 2 1 14.9
  53925 75 33 15 31.8

County Totals

 

6005

1744

637

 

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

 

 

 

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