Radon and thoron working levels from ordinary industrial hygiene dust samples
The method is an improvement of that of OGDEN (1974), and has the following advantages over other methods: the measurements do not require special samples, but can be made on ordinary airborne dust samples; the long sampling time (> 2½h) is more suitable for estimating average exposure than the conventional short sample; radon and thoron working levels are both obtained; and the method is very sensitive (0.001 WL is easily measured). Side-by-side comparisons show good agreement with other methods
Publication Number: P/080
First Author: Ogden TL
Publisher: Oxford University Press,Oxford University, Oxford,Oxford
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