Small ion concentration in houses with enhanced radon concentration

Gunnar Graeffe, Jorma Keskinen, Matti Lehtimäki

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

The concentrations of radon, small air ions, and aerosol particles were measured continuously in 16 Finnish dwellings.
As expected, radon was found to be the major source for small ion generation in indoor air. A simple model for the relationship between ion concentration and radon concentration is tested. The parameters of the model are the ion production rate from radon and background radiation, the small ion recombination, the ion deposition on room surfaces, and the ion attachment rate to aerosol particles.
The model is in reasonable agreement with measured, time-averaged values. The measured, particle-concentration data show peak values over ten times larger than the average.
Consequently, momentary ion concentration cannot only be described as a function of radon concentration. Furthermore, large deviations from the model are found in momentary values due to short-time electric fields caused by human activities.
Original languageEnglish
Pages (from-to)309-313
JournalEnvironment International
Volume15
Issue number1-6
DOIs
Publication statusPublished - 1989
MoE publication typeA1 Journal article-refereed

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radon
ion
aerosol
indoor air
recombination
electric field
human activity
air

Cite this

Graeffe, Gunnar ; Keskinen, Jorma ; Lehtimäki, Matti. / Small ion concentration in houses with enhanced radon concentration. In: Environment International. 1989 ; Vol. 15, No. 1-6. pp. 309-313.
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Small ion concentration in houses with enhanced radon concentration. / Graeffe, Gunnar; Keskinen, Jorma; Lehtimäki, Matti.

In: Environment International, Vol. 15, No. 1-6, 1989, p. 309-313.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Small ion concentration in houses with enhanced radon concentration

AU - Graeffe, Gunnar

AU - Keskinen, Jorma

AU - Lehtimäki, Matti

PY - 1989

Y1 - 1989

N2 - The concentrations of radon, small air ions, and aerosol particles were measured continuously in 16 Finnish dwellings. As expected, radon was found to be the major source for small ion generation in indoor air. A simple model for the relationship between ion concentration and radon concentration is tested. The parameters of the model are the ion production rate from radon and background radiation, the small ion recombination, the ion deposition on room surfaces, and the ion attachment rate to aerosol particles. The model is in reasonable agreement with measured, time-averaged values. The measured, particle-concentration data show peak values over ten times larger than the average. Consequently, momentary ion concentration cannot only be described as a function of radon concentration. Furthermore, large deviations from the model are found in momentary values due to short-time electric fields caused by human activities.

AB - The concentrations of radon, small air ions, and aerosol particles were measured continuously in 16 Finnish dwellings. As expected, radon was found to be the major source for small ion generation in indoor air. A simple model for the relationship between ion concentration and radon concentration is tested. The parameters of the model are the ion production rate from radon and background radiation, the small ion recombination, the ion deposition on room surfaces, and the ion attachment rate to aerosol particles. The model is in reasonable agreement with measured, time-averaged values. The measured, particle-concentration data show peak values over ten times larger than the average. Consequently, momentary ion concentration cannot only be described as a function of radon concentration. Furthermore, large deviations from the model are found in momentary values due to short-time electric fields caused by human activities.

U2 - 10.1016/0160-4120(89)90043-3

DO - 10.1016/0160-4120(89)90043-3

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JO - Environment International

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