Department of Health Services Logo

 

Wisconsin Department of Health Services

Radiation Home

Environmental Monitoring

Radon

Mammography

Tanning

X-ray

Radioactive Materials 

Incident Response

Forms

Notice to  Employees  (PDF, 32 KB)

Occupational Exposure Record  (PDF, 89 KB)

Contacts

 

 

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

Iowa County

53503 22 6 1 34.7
  53506 27 4 0 9.6
  53507 54 23 5 40.7
  53516 44 15 7 32.2
  53517 25 9 1 24.2
  53526 28 11 2 13.6
  53533 275 111 55 57.7
  53535 1 1 0 6.8
  53543 52 18 9 49.1
  53544 28 9 3 35.1
  53553 3 1 0 8.2
  53554 22 7 2 13.6
  53560 42 6 2 15.0
  53565 132 41 26 89.1
  53569 47 14 5 34.6
  53573 149 17 2 19.9
  53580 6 3 0 6.1
  53582 22 6 7 41.9
  53588 91 14 10 44.2
  53595 3 0 0 2.6
  53818 375 144 45 89.1

County Totals

 

1448

460

182

 

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

 

 

 

To Alphabetical Listing

To County Map

To Radon Home Page