Abstract
In normal indoor conditions air ions are mainly formed by natural background radiation and cosmic rays. Especially radon (**2**2**2Rn) and its decay products **2**1**8Po, **2**1**4Pb, **2**1**4Bi and **2**1**4Po are important for the natural ionization process. Unipolar air ionization has, a clear effect on aerosol particles. Aerosol particles are rapidly charged by unipolar ions in the room air which leads to an enhanced particle deposition on the surfaces of the room. This air cleaning effect is mainly due to the electric field generated by the ionizer and the unipolar space charge. Because of the attachment of radon decay products to aerosol particles it is reasonable to assume that the unipolar air ionization has an effect on the radon progeny concentration as well. The importance of this effect has been confirmed in recent studies. Part of the radon decay products can exist as positive radioactive ions. Thus it is obvious that air ionization and especially electric field can have significant effects on free decay products.
| Original language | English |
|---|---|
| Title of host publication | Aerosols: Formation and Reactivity |
| Subtitle of host publication | Proceedings of the Second International Aerosol Conference |
| Place of Publication | Oxford |
| Publisher | Pergamon Press |
| Pages | 1154-1157 |
| Publication status | Published - 1986 |
| MoE publication type | B3 Non-refereed article in conference proceedings |
| Event | 2nd International Aerosol Conference - Berlin, Germany Duration: 22 Sept 1986 → 26 Sept 1986 |
Conference
| Conference | 2nd International Aerosol Conference |
|---|---|
| Country/Territory | Germany |
| City | Berlin |
| Period | 22/09/86 → 26/09/86 |