Testing is easy. First, perform a short term test. Most short term tests take 2-7 days. You need to allow a minimum of 48 hours for a radon test.

Test for radon in each of the lowest structural areas of the home. If your house has one or more foundation types, a test should be placed in or above each area. For example, in the basement, test in the basement. If the home has a crawl space, place a radon detector in the room above the crawl space. If the house has a room with a cement floor, (referred to as "slab-on-grade") place a radon detector in that room also. So, if a house has all three foundation types, all three areas should be tested for radon.

© University of Illinois Board of Trustees. http://www.takeactiononradon.uiuc.edu

testing for radon

how to test

where to find tests

conducting the test

interpreting the results