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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

Door County

54201 37 2 0 5.3
  54202 52 12 7 26.4
  54204 20 10 1 22.8
  54205 97 18 16 100.0
  54209 72 12 5 81.5
  54210 61 14 11 76.0
  54211 47 20 9 28.7
  54212 66 20 17 110.0
  54213 32 6 1 16.5
  54217 207 22 18 29.0
  54226 1 0 0 3.6
  54234 217 82 23 52.2
  54235 625 127 93 93.2
  54246 29 1 2 19.4

County Totals

 

1563

346

203

  

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

 

 

 

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