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Wang, J. ; Meisenberg, O. ; Chen, Y.H.* ; Karg, E.W. ; Tschiersch, J.

Filtration approach to mitigate indoor thoron progeny concentration.

Nukleonika 55, 445-450 (2010)
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Open Access Gold
Creative Commons Lizenzvertrag
This study investigates filtration of air as potential mitigation method of thoron progeny exposure. The experiments were conducted in a model room (volume 7.1 m(3)) which was equipped with a pump and an HEPA (high efficiency particulate air) filter. Filtration at a rate of 0.2, 0.4, 0.5 and 0.8 h(-1) during 88 h proved an effective practice in reducing the total indoor thoron decay product concentration. The results indicate that 0.4-0.8 h(-1) filtration rate had almost the same filtration efficiency in decreasing the total thoron EEC (equilibrium equivalent concentration) by 97% while 80% of total thoron EEC were reduced by 0.2 h(-1) filtration rate; meanwhile, the unattached thoron EEC rose significantly by 190, 270, 290%, respectively under 0.4-0.8 h(-1) filtration rate, whereas 0.2 h-1 filtration rate increased unattached thoron EEC by 40%. The aerosol number size distribution variation reveals that filtration operation removes smaller particles faster or earlier than the larger ones. The annual effective dose calculated was reduced by 91-92% at a filtration rate of 0.4-0.8 h-1 while 75% reduced at 0.2 h(-1) filtration rate after 88 h filtration process.
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Scopus SNIP
Web of Science
Times Cited
0.159
0.080
3
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter filtration; thoron progeny; potential alpha energy concentration (PAEC); equilibrium equivalent concentration (EEC); mitigation
Sprache englisch
Veröffentlichungsjahr 2010
HGF-Berichtsjahr 2010
ISSN (print) / ISBN 0029-5922
e-ISSN 1508-5791
Zeitschrift Nukleonika
Quellenangaben Band: 55, Heft: 4, Seiten: 445-450 Artikelnummer: , Supplement: ,
Verlag Institute of Nuclear Chemistry and Technology (INCT)
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Radiation Protection (ISS)
Institute of Ecological Chemistry (IOEC)
Cooperation Group Comprehensive Molecular Analytics (CMA)
POF Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er) Radiation Sciences
PSP-Element(e) G-501100-002
G-505100-002
WOS ID 000285214700005
Erfassungsdatum 2010-12-31
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