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Natural radioactivity levels in soil samples from some areas of Himachal Pradesh, India using @c-ray spectrometry [An article from: Atmospheric Environment]
Book Details
Author(s)A. Rani, S. Singh
PublisherElsevier
ISBN / ASINB000RR7WUW
ISBN-13978B000RR7WU1
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Atmospheric Environment, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
^2^2^6Ra, ^2^3^2Th and ^4^0K analysis has been carried out in soil samples collected from some areas of Himachal Pradesh, India using @c-ray spectrometry. The measured activity in soil ranges from 42.09 to 79.63Bqkg^-^1, 52.83 to 105.81Bqkg^-^1 and 95.33 to 160.30Bqkg^-^1 for ^2^2^6Ra, ^2^3^2Th and ^4^0K with the mean values of 57.34, 82.22 and 135.75Bqkg^-^1, respectively. The measured activity concentration of ^2^2^6Ra and ^2^3^2Th in soil samples collected from these areas is higher and for ^4^0K is lower than the world average. The radium equivalent activity in all the soil samples is lower than the safe limit set in the OECD report (370Bqkg^-^1). The value of the external exposure dose has been determined from the content of these radionuclides in soil. It has been observed that on the average, the outdoor terrestrial gamma air absorbed dose rate is about 83.28nGyh^-^1. The study yields an annual effective dose in the range of 0.07-0.13mSv. The average value of annual effective dose lies in the global range of outdoor radiation exposure given in United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) [(2000). Effects and risks of ionizing radiations. UN, NY]. The activity concentration of ^2^3^8U has also been determined using fission track technique and the values range from 3.26 to 7.71mgkg^-^1 with a mean value of 4.38mgkg^-^1.
Description:
^2^2^6Ra, ^2^3^2Th and ^4^0K analysis has been carried out in soil samples collected from some areas of Himachal Pradesh, India using @c-ray spectrometry. The measured activity in soil ranges from 42.09 to 79.63Bqkg^-^1, 52.83 to 105.81Bqkg^-^1 and 95.33 to 160.30Bqkg^-^1 for ^2^2^6Ra, ^2^3^2Th and ^4^0K with the mean values of 57.34, 82.22 and 135.75Bqkg^-^1, respectively. The measured activity concentration of ^2^2^6Ra and ^2^3^2Th in soil samples collected from these areas is higher and for ^4^0K is lower than the world average. The radium equivalent activity in all the soil samples is lower than the safe limit set in the OECD report (370Bqkg^-^1). The value of the external exposure dose has been determined from the content of these radionuclides in soil. It has been observed that on the average, the outdoor terrestrial gamma air absorbed dose rate is about 83.28nGyh^-^1. The study yields an annual effective dose in the range of 0.07-0.13mSv. The average value of annual effective dose lies in the global range of outdoor radiation exposure given in United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) [(2000). Effects and risks of ionizing radiations. UN, NY]. The activity concentration of ^2^3^8U has also been determined using fission track technique and the values range from 3.26 to 7.71mgkg^-^1 with a mean value of 4.38mgkg^-^1.
