Base line radioactivity levels in Kaiga site soil and its migration to biosphere

R. Joshi; P. Ravi; R. Gurg

doi:10.1023/a:1010646913902

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 247: Issue 3

Base line radioactivity levels in Kaiga site soil and its migration to biosphere

Authors:

R. Joshi

R. Joshi Environmental Radiological Laboratory (ESS, Health Physics Division, BARC) Kaiga Generating Station, P. O. Kaiga Karwar, Uttar Kannada District Karnataka 581400 India

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P. Ravi

P. Ravi Environmental Radiological Laboratory (ESS, Health Physics Division, BARC) Kaiga Generating Station, P. O. Kaiga Karwar, Uttar Kannada District Karnataka 581400 India

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R. Gurg

R. Gurg BARC ESS, Health Physics Division Mumbai 400085 India

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Pages:: 571–574

Online Publication Date:: 29 Oct 2004

Publication Date:: 18 Mar 2001

Article Category:: Research Article

DOI:: https://doi.org/10.1023/a:1010646913902

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Abstract

The effects of variation in different parameters on the environmental distribution of base line ¹³⁷Cs and ⁴⁰K activities in Kaiga environment and their migration into biosphere are discussed. Transfer factors of these radionuclides from soil to different parts of commonly available plants in this region were estimated. Base line radioactivity levels in soil at Kaiga were higher as compared to pre-operational values reported from other power station sites in India and were mainly attributed to the very high precipitation rate prevailing in this area. Also, this area being an undisturbed forest land, fallout activities are re-circulated to the soil by the decay of parts of trees.⁴⁰K and ¹³⁷Cs activity levels in leaves of shallow rooted plants were found to be higher as compared to that in deep rooted trees. Transfer factors of soil to plant parts revealed that there is no major bio-accumulation of ¹³⁷Cs in any parts of Colocassia esculenta (L.) and Chromolaena odorata (L.) King & Robinson. Comparison of ⁴⁰K/¹³⁷Cs ratio between soil and different parts of these plants has revealed that uptake of K is relatively more efficient as compared to that of Cs, presumably because of the faster kinetics of K due to its larger atom inventory in the soil.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)