The control of radon progeny by air treatment devices

Markku Rajala, Kauko Janka, Matti Lehtimäki, Vesa Kulmala, Gunnar Graeffe, J Keskinen

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

The effect of air treatment devices on the behaviour of radon decay products has been studied in laboratory conditions. An HEPA filter and an electrostatic precipitator were used. Both of the filters were found to decrease the equilibrium factor of daughters and increase the unattached fraction of decay products. In a clean air they also decreased the activity of unattached daughters. The effect of the devices on the health risk caused by radon progeny was estimated by dosimetric calculations. The results corresponding to different models show considerable discrepancy, mainly due to different assumptions about the influence of unattached decay products on the dose.

Original languageEnglish
Pages (from-to)493 - 498
Number of pages6
JournalScience of the Total Environment
Volume45
DOIs
Publication statusPublished - 1985
MoE publication typeNot Eligible

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Radon
radon
Electrostatic precipitators
Health risks
air
Air
filter
health risk
decay product
effect

Cite this

Rajala, M., Janka, K., Lehtimäki, M., Kulmala, V., Graeffe, G., & Keskinen, J. (1985). The control of radon progeny by air treatment devices. Science of the Total Environment, 45, 493 - 498. https://doi.org/10.1016/0048-9697(85)90254-2
Rajala, Markku ; Janka, Kauko ; Lehtimäki, Matti ; Kulmala, Vesa ; Graeffe, Gunnar ; Keskinen, J. / The control of radon progeny by air treatment devices. In: Science of the Total Environment. 1985 ; Vol. 45. pp. 493 - 498.
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Rajala, M, Janka, K, Lehtimäki, M, Kulmala, V, Graeffe, G & Keskinen, J 1985, 'The control of radon progeny by air treatment devices', Science of the Total Environment, vol. 45, pp. 493 - 498. https://doi.org/10.1016/0048-9697(85)90254-2

The control of radon progeny by air treatment devices. / Rajala, Markku; Janka, Kauko; Lehtimäki, Matti; Kulmala, Vesa; Graeffe, Gunnar; Keskinen, J.

In: Science of the Total Environment, Vol. 45, 1985, p. 493 - 498.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Rajala, Markku

AU - Janka, Kauko

AU - Lehtimäki, Matti

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AU - Keskinen, J

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AB - The effect of air treatment devices on the behaviour of radon decay products has been studied in laboratory conditions. An HEPA filter and an electrostatic precipitator were used. Both of the filters were found to decrease the equilibrium factor of daughters and increase the unattached fraction of decay products. In a clean air they also decreased the activity of unattached daughters. The effect of the devices on the health risk caused by radon progeny was estimated by dosimetric calculations. The results corresponding to different models show considerable discrepancy, mainly due to different assumptions about the influence of unattached decay products on the dose.

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Rajala M, Janka K, Lehtimäki M, Kulmala V, Graeffe G, Keskinen J. The control of radon progeny by air treatment devices. Science of the Total Environment. 1985;45:493 - 498. https://doi.org/10.1016/0048-9697(85)90254-2