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Darlene K Powell, Environmental Studies, University of Illinois at Springfield, One University Plaza, PAC 322, Springfield, IL 62703 and Sharron LaFollette, Environmental Health Program, Illinois State University, Campus Box 5220, Normal, IL 61790-5220, (309) 438-2603, slafolle@ilstu.edu.
Radon is a naturally occurring gas, a product of the radioactive decay of uranium. Although present everywhere, radon accumulates in structures with levels varying based on location, design, and operation of the structure. Radon has been identified as the second leading cause of lung cancer next to cigarette smoking. Although there is no safe level of radon exposure, the United States Environmental Protection Agency (USEPA) has set an indoor action level guideline of 4.0 picoCuries per liter (pCi/L). The USEPA recommends all homeowners test for radon using either short-term (two to seven days) or long-term (up to one year) testing devices. Most people select short-term testing devices to screen for radon levels under closed conditions (hoping to identify worst case scenario). In theory, meteorological conditions, home footprints, and the use of heating and cooling equipment may influence radon levels within the home. In this study of Central Illinois homes, the impact of seasonal variations, heating ventilation and air conditioning (HVAC) systems, and home footprints on radon levels were evaluated to determine the best time of year to conduct short-term testing for radon. Data was collected from May of 2003 through May of 2004 and analyzed to determine the following: which season produces the highest indoor radon levels (under closed conditions), if there is a significant difference in radon levels between the seasons, and how well the results of short-term testing devices predict the results of long-term testing devices. Results and implications of findings will be shared with the audience.
Learning Objectives:
Presenting author's disclosure statement:
Disclosure not received
Relationship: Not Received.