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, 18 (9)
doi: 10.3390/ijerph18094454
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Maier, Andreas ; Jones, Jesse ; Sternkopf, Sonja ; Friedrich, Erik ; Fournier, Claudia ; Kraft, Gerhard |
| Art des Eintrags: | Bibliographie |
| Titel: | Radon Adsorption in Charcoal |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | International Journal of Environmental Research and Public Health |
| Jahrgang/Volume einer Zeitschrift: | 18 |
| (Heft-)Nummer: | 9 |
| Kollation: | 7 Seiten |
| DOI: | 10.3390/ijerph18094454 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | 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. |
| Freie Schlagworte: | radon, charcoal, adsorption, desorption |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik |
| Hinterlegungsdatum: | 02 Aug 2024 12:37 |
| Letzte Änderung: | 02 Aug 2024 12:37 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Radon Adsorption in Charcoal. (deposited 02 Feb 2022 13:14)
- Radon Adsorption in Charcoal. (deposited 02 Aug 2024 12:37) [Gegenwärtig angezeigt]
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