Effective doses due to intake of radiotoxic radionuclides 226Ra, 210Po and 210Pb through drinking water of coastal Karnataka

Rajashekara, K M and Narayana, Y and Narasimha, S A and Shetty, Pramod K and Prakash, V (2011) Effective doses due to intake of radiotoxic radionuclides 226Ra, 210Po and 210Pb through drinking water of coastal Karnataka. Journal of Radioanalytical and Nuclear Chemistry , 290. pp. 137-140. ISSN 0236-5731

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Abstract

The concentrations of 226Ra, 210Po and 210Pb have been measured, by high efficiency 500 9 500 NaI(Tl) gamma ray spectrometer and chemical deposition method, in surface water samples from major rivers Kali, Sharavathi and Netravathi of coastal Karnataka. Measurements of 226Ra, 210Po and 210Pb in surface water from these rivers are important because the river water is main source of potable water in this region due to inadequate supply of treated water. The mean activity of 226Ra, 210Po and 210Pb in the surface water of the river Kali was found to be 5.13 mBq L-1, 1.28 and 1.37 Bq L-1, for Sharavathi River the mean activity was found to be 3.37 mBq L-1, 1.30 and 1.44 Bq L-1. In Netravathi River the mean activity of 226Ra, 210Po and 210Pb was found to be 3.30 mBq L-1, 1.00 and 1.20 Bq L-1. From the measured concentration of 226Ra, 210Po and 210Pb, the Effective dose to the population of the region was computed. The results of these systematic studies are presented and discussed in the paper.

Item Type: Article
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 27 Apr 2013 11:32
Last Modified: 27 Apr 2013 11:32
URI: http://eprints.manipal.edu/id/eprint/79904

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