Volume 4, Issue 5

Temporal variation of radioactivity at NARL, Gadanki.

Author

Kamsali Nagaraja1*, K Charan Kumar1, B Pramodh1, T Rajendra Prasad2, T Narayana Rao2 and M Venkat Ratnam2

Abstract

The activity concentrations of radon were measured using AlphaGuard PQ-2000PRO along with meteorological parameters at NARL, Gadanki, India. The diurnal and monthly variations of activities of radon 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 arithmetic mean of radon concentration is 11.67 ± 2.4 Bq m-3 for the year 2012. The diurnal variations have reached the maximum concentration of 26 Bq m-3 in December 2012. Observations show an increase in the concentration of radon during nighttime compared to the daytime values. Also observed is the diurnal variation of radon that exhibits a positive correlation with the relative humidity and is negatively correlated with ambient temperature of the atmosphere.

DOI

https://doi.org/10.62226/ijarst20150537

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