Measurement of primordial radionuclides in soils and building materials from Mizoram, India
- 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/).
Cite this article
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 -