Staff View: Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar

Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar

The environment is definitely exposed to radiation. There are many sources that contribute to the natural background; one of them is natural radionuclides. Radionuclides are including Uranium-238 (238U), Thorium-232 (232Th) and Potassium-40 (40K) with an unstable nucleus. The concentration of nat...

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Main Author:	Medar, Izzah Amirah Hazlinda
Format:	Student Project
Language:	English
Published:	Faculty Of Applied Sciences 2018
Subjects:	Environmental conditions. Environmental quality. Environmental indicators. Environmental degradation Radiation chemistry
Online Access:	http://ir.uitm.edu.my/id/eprint/24846/1/PPb_IZZAH%20AMIRAH%20HAZLINDA%20MEDAR%20AS%20C%2018_5.PDF http://ir.uitm.edu.my/id/eprint/24846/
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spelling	my.uitm.ir.248462019-07-19T01:36:27Z http://ir.uitm.edu.my/id/eprint/24846/ Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar Medar, Izzah Amirah Hazlinda Environmental conditions. Environmental quality. Environmental indicators. Environmental degradation Radiation chemistry The environment is definitely exposed to radiation. There are many sources that contribute to the natural background; one of them is natural radionuclides. Radionuclides are including Uranium-238 (238U), Thorium-232 (232Th) and Potassium-40 (40K) with an unstable nucleus. The concentration of naturally occurring radionuclides materials (NORM) in the surrounding may cause by human activities such as agricultures activities, fertilizers and fossil fuels combustion. The unexpected exposure to radionuclides usually will affect the living organisms including human health in long term effect. The study was done to know the concentration of naturally occurring radioactive material (NORM) in the soil aside from to find the radiological risk in Tasik Paya Bungor, Gambang. The sample was collected by using hand auger and then survey meter is used to obtain the absorbed dose rate of that place. The concentration of 238U, 232Th, 4<1<. were obtained by using EDXRF are 67.80 ± 11.87 Bq / kg, 149.74 ± 15.76 Bq / kg and 543.10 ± 16.34 Bq / kg respectively. The results obtained are higher than the concentrations of world limit for 238U, 232Th and 40K which are 33 Bq kg-I, 40 Bq kg-I and 420 Bq kg-I, respectively. For the radiological risk studied in Tasik Paya Bungor, Gambang area are based on the radium equivalent activity, absorbed dose rate, annual effective dose and external hazard index. The mean averages of the radiological risks are 323.76 Bq kg-I, 151.44 nGy / yr, 0.186 mSv / yr and 0.874 Hex respectively. The results obtained are averagely lower compared to the world limit for the radium equivalent activity, absorbed dose rate, annual effective dose and external hazard index which are 370 Bq kg-I, 58 nGy / yr, 0.3 mSv / yr and 1 Hex respectively. Finally, the isodose map was generated by using Surfer 15 software. Faculty Of Applied Sciences 2018 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/24846/1/PPb_IZZAH%20AMIRAH%20HAZLINDA%20MEDAR%20AS%20C%2018_5.PDF Medar, Izzah Amirah Hazlinda (2018) Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar. [Student Project] (Unpublished)
institution	Universiti Teknologi Mara
building	Tun Abdul Razak Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Mara
content_source	UiTM Institutional Repository
url_provider	http://ir.uitm.edu.my/
language	English
topic	Environmental conditions. Environmental quality. Environmental indicators. Environmental degradation Radiation chemistry
spellingShingle	Environmental conditions. Environmental quality. Environmental indicators. Environmental degradation Radiation chemistry Medar, Izzah Amirah Hazlinda Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar
description	The environment is definitely exposed to radiation. There are many sources that contribute to the natural background; one of them is natural radionuclides. Radionuclides are including Uranium-238 (238U), Thorium-232 (232Th) and Potassium-40 (40K) with an unstable nucleus. The concentration of naturally occurring radionuclides materials (NORM) in the surrounding may cause by human activities such as agricultures activities, fertilizers and fossil fuels combustion. The unexpected exposure to radionuclides usually will affect the living organisms including human health in long term effect. The study was done to know the concentration of naturally occurring radioactive material (NORM) in the soil aside from to find the radiological risk in Tasik Paya Bungor, Gambang. The sample was collected by using hand auger and then survey meter is used to obtain the absorbed dose rate of that place. The concentration of 238U, 232Th, 4<1<. were obtained by using EDXRF are 67.80 ± 11.87 Bq / kg, 149.74 ± 15.76 Bq / kg and 543.10 ± 16.34 Bq / kg respectively. The results obtained are higher than the concentrations of world limit for 238U, 232Th and 40K which are 33 Bq kg-I, 40 Bq kg-I and 420 Bq kg-I, respectively. For the radiological risk studied in Tasik Paya Bungor, Gambang area are based on the radium equivalent activity, absorbed dose rate, annual effective dose and external hazard index. The mean averages of the radiological risks are 323.76 Bq kg-I, 151.44 nGy / yr, 0.186 mSv / yr and 0.874 Hex respectively. The results obtained are averagely lower compared to the world limit for the radium equivalent activity, absorbed dose rate, annual effective dose and external hazard index which are 370 Bq kg-I, 58 nGy / yr, 0.3 mSv / yr and 1 Hex respectively. Finally, the isodose map was generated by using Surfer 15 software.
format	Student Project
author	Medar, Izzah Amirah Hazlinda
author_facet	Medar, Izzah Amirah Hazlinda
author_sort	Medar, Izzah Amirah Hazlinda
title	Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar
title_short	Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar
title_full	Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar
title_fullStr	Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar
title_full_unstemmed	Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar
title_sort	natural radionuclide assessment of soil from tasik paya bungor, gambang. / izzah amirah hazlinda medar
publisher	Faculty Of Applied Sciences
publishDate	2018
url	http://ir.uitm.edu.my/id/eprint/24846/1/PPb_IZZAH%20AMIRAH%20HAZLINDA%20MEDAR%20AS%20C%2018_5.PDF http://ir.uitm.edu.my/id/eprint/24846/
_version_	1685649916683091968
score	13.211869

Natural radionuclide assessment of soil from Tasik Paya Bungor, Gambang. / Izzah Amirah Hazlinda Medar

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