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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

Milwaukee County

53110 260 81 10 30.8
  53129 338 127 44 41.8
  53130 238 112 36 110.0
  53132 774 329 95 53.8
  53154 423 170 55 100.0
  53172 237 95 12 19.5
  53201 54 0 0 3.4
  53202 387 33 13 42.0
  53203 8 0 0 2.8
  53204 85 12 0 10.0
(to column headings) 53205 84 4 2 16.0
  53206 19 3 0 6.3
  53207 372 78 17 44.5
  53208 170 43 3 43.14
  53209 337 102 30 25.0
  53210 134 22 2 13.1
  53211 342 40 8 18.9
  53212 76 17 4 14.7
  53213 609 136 22 30.3
  53214 534 96 33 78.34
  53215 218 23 1 40.3
(to column headings) 53216 218 38 6 39.9
  53217 820 150 22 25.9
  53218 281 76 6 12.8
  53219 431 88 20 23.43
  53220 332 122 16 35.5
  53221 417 123 24 47.0
  53222 507 181 26 32.1
  53223 341 128 25 78.3
  53224 156 45 15 57.0
  53225 188 56 25 44.1
  53226 698 237 71 48.6
(to column headings) 53227 442 147 22 28.8
  53228 185 77 23 24.4
  53233 85 14 1 28.0
  53234 5 0 0 1.9
  53235 47 7 0 9.8
  53237 4 2 0 7.8
  53267 2 0 0 2.0

 

53268 1 0 0 3.0
  53288 2 2 0 6.2
  53295 3 1 0 5.9

County Totals

 

10,864

3,017

689

 

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

 

 

 

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