A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh

This research project was conducted on a 25.76-km 2 land area in Bachok District, Kelantan. Forty nine soil samples were taken and brought to the Malaysian Institute for Nuclear Technology Research (MINT) laboratory to be analysed for Ra-228 , Ra-226, and K-40 activity concentrations. Three or mo...

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Main Author:	Mohd Solleh, Mohd Rafi
Format:	Thesis
Language:	English
Published:	2004
Subjects:	RS Pharmacy and materia medica Materia medica
Online Access:	https://ir.uitm.edu.my/id/eprint/27382/2/27382.pdf
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id	my-uitm-ir.27382
record_format	uketd_dc
spelling	my-uitm-ir.273822024-04-30T02:22:57Z A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh 2004 Mohd Solleh, Mohd Rafi RS Pharmacy and materia medica Materia medica This research project was conducted on a 25.76-km 2 land area in Bachok District, Kelantan. Forty nine soil samples were taken and brought to the Malaysian Institute for Nuclear Technology Research (MINT) laboratory to be analysed for Ra-228 , Ra-226, and K-40 activity concentrations. Three or more soil samples were taken from each soil series. Radiation dose at each sampling point was also measured. Radionuclide concentration measurements were carried out using shielded germanium semiconductor detector of high resolution connected to gamma spectrometer. Radiation dose measurements were carried out using radiation dose digital ratemeter detector. Coordinates of sampling points from the field were used in mapping both radiation dose contour and radionuclide concentration contour map. These were done by using block kriging method in GS+ and MapInfo Professional 6.0 computer program as the tools. Correlations between radiation doses and radionuclide activity concentrations with soil characteristics were carried out by using SAS computer program. Regression analysis was carried out by using Excel programmes. It was found that K-40, Ra-228 and Ra226 mean activity concentrations were at 357.6, 62.9 and 46.5 Bq kg" respectively. Soils with higher clay and silt contents had a higher activity concentration of Ra-226. Soils with a higher sand contents had a lower activity concentration of Ra-226. Soils with higher clay and silt contents had a higher activity concentration of Ra-228. Soils with a higher sand contents had a lower activity concentration of Ra-228. Potassium-40 activity concentration showed no correlation with the percentage of clay, silt and sand. The K-40 may have come from either marine sand or from the fertilizers. 2004 Thesis https://ir.uitm.edu.my/id/eprint/27382/ https://ir.uitm.edu.my/id/eprint/27382/2/27382.pdf text en public masters Universiti Teknologi MARA Faculty of Applied Science
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	RS Pharmacy and materia medica Materia medica
spellingShingle	RS Pharmacy and materia medica Materia medica Mohd Solleh, Mohd Rafi A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh
description	This research project was conducted on a 25.76-km 2 land area in Bachok District, Kelantan. Forty nine soil samples were taken and brought to the Malaysian Institute for Nuclear Technology Research (MINT) laboratory to be analysed for Ra-228 , Ra-226, and K-40 activity concentrations. Three or more soil samples were taken from each soil series. Radiation dose at each sampling point was also measured. Radionuclide concentration measurements were carried out using shielded germanium semiconductor detector of high resolution connected to gamma spectrometer. Radiation dose measurements were carried out using radiation dose digital ratemeter detector. Coordinates of sampling points from the field were used in mapping both radiation dose contour and radionuclide concentration contour map. These were done by using block kriging method in GS+ and MapInfo Professional 6.0 computer program as the tools. Correlations between radiation doses and radionuclide activity concentrations with soil characteristics were carried out by using SAS computer program. Regression analysis was carried out by using Excel programmes. It was found that K-40, Ra-228 and Ra226 mean activity concentrations were at 357.6, 62.9 and 46.5 Bq kg" respectively. Soils with higher clay and silt contents had a higher activity concentration of Ra-226. Soils with a higher sand contents had a lower activity concentration of Ra-226. Soils with higher clay and silt contents had a higher activity concentration of Ra-228. Soils with a higher sand contents had a lower activity concentration of Ra-228. Potassium-40 activity concentration showed no correlation with the percentage of clay, silt and sand. The K-40 may have come from either marine sand or from the fertilizers.
format	Thesis
qualification_level	Master's degree
author	Mohd Solleh, Mohd Rafi
author_facet	Mohd Solleh, Mohd Rafi
author_sort	Mohd Solleh, Mohd Rafi
title	A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh
title_short	A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh
title_full	A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh
title_fullStr	A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh
title_full_unstemmed	A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh
title_sort	case study of radiation level and natural radionuclide concentration in various soil types of bachok district, kelantan darul naim / mohd rafi mohd solleh
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Applied Science
publishDate	2004
url	https://ir.uitm.edu.my/id/eprint/27382/2/27382.pdf
_version_	1804889603739484160

A case study of radiation level and natural radionuclide concentration in various soil types of Bachok district, Kelantan Darul Naim / Mohd Rafi Mohd Solleh

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