Chapter 12: Studies on distribution of 210Po and 210Pb activity and physico chemical effects of undisturbed alluvial clay soil in Belagavi district, Karnataka, India
-
Published:08 Dec 2023
-
Special Collection: 2023 ebook collection
V. Kamalakar, P. Vinutha, S. Achari, and Y. Narayana, in Environmental Radiochemical Analysis VII, ed. N. Evans, Royal Society of Chemistry, 2023, vol. 357, ch. 12, pp. 125-138.
Download citation file:
The paper discusses the activity of 210Po and 210Pb and physico chemical effects on undisturbed alluvial clay soil in Belagavi district of Karnataka, India. The activity of 210Pb was estimated through 210Po by radiochemical separation and subsequent deposition on a silver disc. The α-activity was then counted using a ZnS(Ag) counter of 30% efficiency, and the activity was calculated. While the average of 210Po activity in soil samples ranged from 9.45 to 31.75 Bq kg−1, with an average of 16.76 Bq kg−1,Whereas, the 210Pb activity range from 17.58 to 78.52 Bq kg−1, with an average value of 37.89 Bq kg−1. 210Po and 210Pb activity ratio range from 0.39 to 0.54, with an average value of 0.46. The low activity of 210Po and 210Pb was observed in the dissolved phase due to the removal of these reactive radionuclides from solution. The granulometric contents (silt, clay, and sand), organic matter and pH contents were measured in soil, respectively. Using IBM SPSS software, a good correlation with correlation coefficient was found between the activity 210Po, and 210Pb with organic matter percentage and clay. The Surfer software version 8, kriging interpolation method, 3D map is used to predict the value of a random variable over a spatial region.