Reduction of Indoor Radon by Air Cleaning—Case Study
Publication: Journal of Environmental Engineering
Volume 126, Issue 12
Abstract
A field study was conducted over an intermittent period of 2.5 years to determine whether air cleaning, using a portable high efficiency particulate air filter air cleaner with an activated carbon filter, was a viable method of reducing indoor radon levels. Past studies showed that air cleaners could reduce radon and/or radon progeny concentrations. The data collected in this study showed that the air cleaner did not reduce radon levels and so was not an effective mitigation device. The data also showed that above radon levels of 6 pCi/L there was a strong positive linear correlation to moisture content. Below 6 pCi/L there was essentially no correlation. Radon concentrations were determined using EPA approved commercial test kits that were occasionally run in duplicate. In these cases it was found that there was good reproducibility between the test kits over a range of levels from 1.1 to 14.5 pCi/L, with the average difference being under 10%.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 126 • Issue 12 • December 2000
Pages: 1125 - 1130
History
Received: Jun 8, 1999
Published online: Dec 1, 2000
Published in print: Dec 2000
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