Enrichment of ²¹⁰Po and ²¹⁰Pb in the Padubidri environs of Karnataka
by V. Prakash, Y. Narayana
International Journal of Nuclear Energy Science and Technology (IJNEST), Vol. 3, No. 4, 2007

Abstract: The activity concentrations of natural radionuclides, viz ²¹⁰Po and ²¹⁰Pb, in soil samples of Padubidri in the coastal Karnataka, the site for the proposed coal-based thermal power station, were measured using a ZnS (Ag) alpha counting system to establish baseline data on radioactivity levels in the environment of the region. Soil samples were collected at different sampling stations and analysed for ²¹⁰Po and ²¹⁰Pb activities to understand the distribution and enrichment of these radionuclides. The mean ²¹⁰Po/²¹⁰Pb ratio shows that the radionuclides ²¹⁰Po and ²¹⁰Pb are not in equilibrium, and the accumulation of ²¹⁰Pb in soil is greater than that of ²¹⁰Po. A good correlation was observed between the activities of ²¹⁰Po and ²¹⁰Pb. The absorbed gamma dose rates were also measured in the study area using a portable scintillometer.

Online publication date: Wed, 06-Feb-2008

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