Analysis Of Natural Radioactivity And Artificial
Radionuclides In Soil Samples In The
Najran Region Of Saudi Arabia
Author(s)
A. Al-Zahrany & K. S. Al-Mogabes
Abstract
Concentrations of 238U, 232Th, 226Ra, 40K, and 137Cs in 43 soil samples obtained
from Najran region were analyzed using high resolution hyper pure germanium
spectrometers. The activity ranged from 1.08 Bq/Kg to 7.76 Bq/Kg, 8.56 Bq/Kg
to 49.09 Bq/Kg, 8.67 Bq/Kg to 41.54 Bq/Kg, 202.85 Bq/Kg to 993.07 Bq/Kg
and 0.08 Bq/Kg to 7.65 Bq/Kg, respectively. The mean concentrations for all
naturally occurring radio-nuclides averaged over the whole region were found to
be less than the international level for soil in the United States, China, and Japan.
Moreover, the average annual effective dose for Najran region was evaluated to
be 0.33mSv/year, which is comparatively less than the annual average dose
worldwide from all natural sources of exposure (2.40 mSv/year).
Keywords: natural radioactivity, Cs-137 fallout, NORM, radioactivity level in
soil, Saudi Arabia.
Keywords
natural radioactivity, Cs-137 fallout, NORM, radioactivity level in
soil, Saudi Arabia
Related Book
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