Radon Measurements for Ozaukee County   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.   Ozaukee County Measurement Summary - 2006 Numbers of Measurements versus Radon: No. of Measurements Zip Code Total No.      # 4 - 10 pCi/L* # >10 pCi/L Ave. pCi/L High pCi/L 53004 53012 53013 53021 53022 53024 53040 53074   53075 53080 53092 53095 53097 53209 32 453 22 41 309 276 55 130 34 64 612 525 80 297 2 175 6 13 112 115 14 41 17 14 215 149 28 96 1 55 0 2 40 18 5 8 6 7 43 61 5 28 2.6 5.3 2.9 3.9 5.3 4.7 3.9 3.8 6.7 3.9 4.4 5.1 4.4 4.7  13.5 29.4 7.3 12.4 31.2 42.3 22.5 12.4 18.4 15.9 59.1 62.8 30.9 25.0 Zip Code      No. of Measurements      Ave. pCi/L      High pCi/L Total No.     # 4 - 10 pCi/L*     # >10 pCi/L * pCi/L: picoCuries per Liter, a measure of radon concentration 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. The data listed for Zip Codes crosses county borders. Information provided by the Wisconsin Department of Health and Family Services.