Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research

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Measurement of primordial radionuclides in soils and building materials from Mizoram, India

Authors
L.Z. Chhangte, Hmingchungnunga, Vanramlawma, P.C. Rohmingliana, B.K. Sahoo, B.K. Sapra, B. Zoliana, Rosangliana, Z. Pachuau
Corresponding Author
B. Zoliana
Available Online December 2018.
DOI
10.2991/msc-18.2018.31How to use a DOI?
Keywords
Radionuclides, activity concentration, NaI (Tl) detector, soil, gamma energy
Abstract

Humans are constantly exposed to radiations, of which majority (87%) is from natural sources and a fraction (13%) is from man-made. Construction materials can contribute to natural background radiation in two ways, namely emission of gamma radiation, from primordial radionuclides like uranium, thorium and potassium and their decay products (external dose); and exhalation of radon (internal dose). The nature of soil largely determines the degree of gamma radiation. Measurement of natural radioactivity in soil and building materials from Siaha and Lawngtlai districts in Mizoram was carried out using 5”X 4” NaI (Tl) detector. Soil samples were collected from 25 different sites and five different commonly used building materials in the study area are also analysed. The activity concentrations were measured for three principal primordial radionuclides namely, 238U, 232Th and 40K. The average activity concentration of soil samples was found to be 33.47 Bq/kg for 238U, 67.00 Bq/kg for 232Th nuclides and 942.25 Bq/kg for 40K nuclides. The average activity concentration of 238U &232Th are found to be highest in Glazed tiles and that of 40K is found to be highest in bamboo.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research
Series
Advances in Engineering Research
Publication Date
December 2018
ISBN
10.2991/msc-18.2018.31
ISSN
2352-5401
DOI
10.2991/msc-18.2018.31How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - L.Z. Chhangte
AU  - Hmingchungnunga
AU  - Vanramlawma
AU  - P.C. Rohmingliana
AU  - B.K. Sahoo
AU  - B.K. Sapra
AU  - B. Zoliana
AU  - Rosangliana
AU  - Z. Pachuau
PY  - 2018/12
DA  - 2018/12
TI  - Measurement of primordial radionuclides in soils and building materials from Mizoram, India
BT  - Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research
PB  - Atlantis Press
SP  - 186
EP  - 189
SN  - 2352-5401
UR  - https://doi.org/10.2991/msc-18.2018.31
DO  - 10.2991/msc-18.2018.31
ID  - Chhangte2018/12
ER  -