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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.43 [2005] >
IJPAP Vol.43(09) [September 2005] >
| Title: | Electrical conductivity of air related to ion pair production rate from radon and its progeny concentrations in dwellings of Mysore city |
| Authors: | Chandrashekara, M S
Sannappa, J
Paramesh, L |
| Keywords: | Radon
Radon progeny
Ion production
Atmospheric conductivity
Gerdien condenser
Diurnal variation |
| Issue Date: | Sep-2005 |
| Publisher: | CSIR |
| IPC Code: | C01B23/00 |
| Abstract: |
Radon gases
released from the ground surface and building materials are the major sources
of ionization in the indoor atmosphere. Radon will undergo radioactive decay in
the atmosphere by emitting an alpha particle. The alpha and beta particles, and
the gama rays from 222Rn, 220Rn and their decay products
give up their energy by ionizing the molecules and aerosol particles in the
atmosphere. Radon and its progeny concentrations and the electrical
conductivity of air due to both polarities were measured simultaneously at a
height of 1 m from the floor inside dwellings of Mysore
city, India.
Diurnal variations of radon and its progeny concentrations show their peak
values in the early morning (0200 to 0600 hrs) throughout the year.
Observations show an increase in the concentration of radon and its progeny
during night time compared to the daytime values. The electrical conductivity
of the atmospheric air also exhibits similar trend. These results are discussed
in terms of ionization rate due to radioactivity and the influence of
meteorological parameters on radon and its progeny concentrations.
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| Page(s): | 679-683 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.43(09) [September 2005]
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