Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi

Naturally occurring radioactive material (NORM) comprises long-lived nuclides which can be harmful to human due to long-term exposure. Furthermore, correlation of observed natural radionuclides concentration in the river sediment with river sediment discharge will allow its spatial and temporal dist...

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Main Author:	Tuan Resdi, Tuan Asmaa
Format:	Thesis
Language:	English
Published:	2022
Subjects:	River protective works Regulation Flood control
Online Access:	https://ir.uitm.edu.my/id/eprint/75845/2/75845.pdf
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id	my-uitm-ir.75845
record_format	uketd_dc
spelling	my-uitm-ir.758452023-03-31T00:58:28Z Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi 2022 Tuan Resdi, Tuan Asmaa River protective works. Regulation. Flood control Naturally occurring radioactive material (NORM) comprises long-lived nuclides which can be harmful to human due to long-term exposure. Furthermore, correlation of observed natural radionuclides concentration in the river sediment with river sediment discharge will allow its spatial and temporal distribution to be predicted. NORM studies in Malaysia are reviewed and compiled to provide the spatial observation of naturally occurring radioactive material in the country and to identify hotspot locations. There is strong correlation between Ra-226 and Ra-228 but no discernible correlation between radioactivity concentration in catchment soil and river sediment sample for the same element. In general, radionuclide activity increases in river sediment in the down-river direction which may be attributed to catchment soil loss. There is insufficient data on river sediment discharge to support the claim conclusively. Linear log-transformed equation is found to give the best correlation between river sediment discharge and streamflow with 1-day lead. The river sediment discharge derived shows good agreement with the monsoonal effect and total basin sediment yield is validated against published literature where errors are primarily attributed to extreme events. Over a fouryear period, the Langat River basin has been investigated for the correlation between natural radionuclide activity concentrations in river sediment and suspended sediment discharge. Analysis of long-term correlation between quarterly natural radionuclides concentration observation with river sediment discharge is generally poor. However, examination of the seasonal variation shows good correlation of natural radionuclides concentration and river sediment discharge in the months of March and August/September, corresponding to the pre-storm seasons. 2022 Thesis https://ir.uitm.edu.my/id/eprint/75845/ https://ir.uitm.edu.my/id/eprint/75845/2/75845.pdf text en public phd doctoral Universiti Teknologi MARA (UiTM) College of Engineering Lee, Wei Koon
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Lee, Wei Koon
topic	River protective works Regulation Flood control
spellingShingle	River protective works Regulation Flood control Tuan Resdi, Tuan Asmaa Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi
description	Naturally occurring radioactive material (NORM) comprises long-lived nuclides which can be harmful to human due to long-term exposure. Furthermore, correlation of observed natural radionuclides concentration in the river sediment with river sediment discharge will allow its spatial and temporal distribution to be predicted. NORM studies in Malaysia are reviewed and compiled to provide the spatial observation of naturally occurring radioactive material in the country and to identify hotspot locations. There is strong correlation between Ra-226 and Ra-228 but no discernible correlation between radioactivity concentration in catchment soil and river sediment sample for the same element. In general, radionuclide activity increases in river sediment in the down-river direction which may be attributed to catchment soil loss. There is insufficient data on river sediment discharge to support the claim conclusively. Linear log-transformed equation is found to give the best correlation between river sediment discharge and streamflow with 1-day lead. The river sediment discharge derived shows good agreement with the monsoonal effect and total basin sediment yield is validated against published literature where errors are primarily attributed to extreme events. Over a fouryear period, the Langat River basin has been investigated for the correlation between natural radionuclide activity concentrations in river sediment and suspended sediment discharge. Analysis of long-term correlation between quarterly natural radionuclides concentration observation with river sediment discharge is generally poor. However, examination of the seasonal variation shows good correlation of natural radionuclides concentration and river sediment discharge in the months of March and August/September, corresponding to the pre-storm seasons.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Tuan Resdi, Tuan Asmaa
author_facet	Tuan Resdi, Tuan Asmaa
author_sort	Tuan Resdi, Tuan Asmaa
title	Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi
title_short	Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi
title_full	Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi
title_fullStr	Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi
title_full_unstemmed	Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi
title_sort	correlation of naturally occurring radioactive materials (norm) concentration in langat river and basin sediment / tuan asmaa tuan resdi
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	College of Engineering
publishDate	2022
url	https://ir.uitm.edu.my/id/eprint/75845/2/75845.pdf
_version_	1783736086071083008

Correlation of naturally occurring radioactive materials (NORM) concentration in Langat River and basin sediment / Tuan Asmaa Tuan Resdi

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