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Radon and its short-lived progeny: Variations near the ground

Nagaraja, K and Prasad, BSN and Madhava, MS and Chandrashekara, MS and Paramesh, L and Sannappa, J and Pawar, SD and Murugavel, P and Kamra, AK (2003) Radon and its short-lived progeny: Variations near the ground. Radiation Measurements, 36 (1-6 SP). pp. 413-417.

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In the atmosphere above the surface of the Earth the concentrations of radon and its progeny are measured, along with the meteorological parameters from December 1997 to December 2000 for a continental location, Pune (18°N,74°E), India. The concentrations show maxima in the early morning hours when the turbulence mixing is minimum; whereas in the afternoon the turbulence mixing is maximum and concentrations exhibit minima. The median values of concentration are 9.70 and 2.84 Bq m-3, respectively, for radon and its progeny, during the observation period. Ionization rates in the atmosphere are derived for the same period. It is found that the ionization rate exhibits a median value of 5.48 ionpairs cm-3 s-1. The diurnal and seasonal variations in the concentrations of radon and its progeny, and the ionization rate due to radioactivity are found to exhibit correlation with the relative humidity, and anti-correlation with the temperature.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier
Uncontrolled Keywords: Atmospheric humidity; Concentration (process); Ionization; Isotopes; Radioactivity, Ionization rate, Radon
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 19 Apr 2015 12:13
Last Modified: 19 Apr 2015 12:13

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