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Radon Adsorption in Charcoal

Maier, Andreas ; Jones, Jesse ; Sternkopf, Sonja ; Friedrich, Erik ; Fournier, Claudia ; Kraft, Gerhard (2022)
Radon Adsorption in Charcoal.
In: International Journal of Environmental Research and Public Health, 2022, 18 (9)
doi: 10.26083/tuprints-00019566
Article, Secondary publication, Publisher's Version

Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

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Item Type: Article
Type of entry: Secondary publication
Title: Radon Adsorption in Charcoal
Language: English
Date: 2 February 2022
Place of Publication: Darmstadt
Year of primary publication: 2022
Publisher: MDPI
Journal or Publication Title: International Journal of Environmental Research and Public Health
Volume of the journal: 18
Issue Number: 9
Collation: 7 Seiten
DOI: 10.26083/tuprints-00019566
Corresponding Links:
Origin: Secondary publication DeepGreen

Radon is pervasive in our environment and the second leading cause of lung cancer induction after smoking. Therefore, the measurement of radon activity concentrations in homes is important. The use of charcoal is an easy and cost-efficient method for this purpose, as radon can bind to charcoal via Van der Waals interaction. Admittedly, there are potential influencing factors during exposure that can distort the results and need to be investigated. Consequently, charcoal was exposed in a radon chamber at different parameters. Afterward, the activity of the radon decay products 214Pb and 214Bi was measured and extrapolated to the initial radon activity in the sample. After an exposure of 1 h, around 94% of the maximum value was attained and used as a limit for the subsequent exposure time. Charcoal was exposed at differing humidity ranging from 5 to 94%, but no influence on radon adsorption could be detected. If the samples were not sealed after exposure, radon desorbed with an effective half-life of around 31 h. There is also a strong dependence of radon uptake on the chemical structure of the recipient material, which is interesting for biological materials or diffusion barriers as this determines accumulation and transport.

Uncontrolled Keywords: radon, charcoal, adsorption, desorption
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-195661
Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 02 Feb 2022 13:14
Last Modified: 14 Nov 2023 19:04
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19566
PPN: 505618788
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