Radon Test Measurements for Washington County

Radon is an invisible, odorless, radioactive gas created during the natural decay of uranium in the soil. Radon levels vary from house to house and have nothing to do with age, quality or upkeep of the home. Radon testing can be performed as part of your home inspection or on its own.

Washington County Radon Measurement Summary - 2006

Numbers of Measurements versus Radon:

Zip Code	No. of Measurements			Ave. pCi/L	High pCi/L
	Total No.	# 4 - 10 pCi/L*	# >10 pCi/L
53002	16	6	0	3.5	7.5
53010	43	13	2	3.8	13.0
53012	453	175	55	5.3	29.4
53017	292	84	124	13.8	120.0
53021	41	13	2	3.9	12.4
53022	309	112	40	5.3	31.2
53027	201	74	35	7.1	56.6
53033	131	44	40	8.8	80.0
53037	63	26	3	4.3	11.9
53040	55	14	5	3.9	22.5
53060	5	2	0	3.3	6.9
53076	63	30	12	7.3	26.2
53078	10	6	0	4.6	7.9
53086	86	33	21	7.3	28.7
53090	99	35	3	4.7	54.7
56091	10	4	5	14.0	27.6
53095	525	149	61	5.1	62.8
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 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 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.

Back to Wisconsin radon map.

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