Comment on 'An etched track detector for short-term screening measurements of radon'

摘要

We are writing to note that the use of short-term measurements for radon in homes was the subject of a major DEFRA project, which was published in late 2003 [1]. This report, and subsequent papers by our group [2-4] gave clear guidance on the accuracy of the track etch, charcoal and electret detectors for I-week and l-month exposures, compared to the standard 3-month exposures. Subsequent analysis of the results prompted our group to recommend 14-day exposures, rather than 7-day exposures, because of potential distortions due to tidal effects [5].