Natural radioactivity analysis and radiological impact assessment from a coal power plant

Background: Through combustion, a coal-fired power plant produces by-products, such as fly ash and bottom ash, which contain significant concentrations of radionuclides that cause environmental contamination, leading to health problems. Materials and Methods: This study investigated the specific act...

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Main Authors: Mohamed H., Pauzi A.M., Ahmad N., Karim N.A., Wazir M.N.U.I., Zaiul Bahri C.N.A.C., Idris M.I.
Other Authors: 59095089800
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Published: Novin Medical Radiation Institute 2024
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spelling my.uniten.dspace-339502024-10-14T11:17:30Z Natural radioactivity analysis and radiological impact assessment from a coal power plant Mohamed H. Pauzi A.M. Ahmad N. Karim N.A. Wazir M.N.U.I. Zaiul Bahri C.N.A.C. Idris M.I. 59095089800 58876271500 57213609745 57216946378 58875012500 58875012600 56785419200 bottom ash Coal fly ash K-40 thorium-232 uranium-238 germanium naturally occurring radioactive material potassium 40 radioactive material radioisotope thorium 232 unclassified drug uranium 238 absorbed dose rate annual effective dose equivalent Article bottom ash cancer risk coal-fired power plant excess lifetime cancer risk fly ash gamma spectrometry human natural radioactivity radiation dose radiation hazard radioactivity radiology risk factor sampling X ray diffraction Background: Through combustion, a coal-fired power plant produces by-products, such as fly ash and bottom ash, which contain significant concentrations of radionuclides that cause environmental contamination, leading to health problems. Materials and Methods: This study investigated the specific activity and radiological impacts of naturally occurring radioactive materials (NORMs) in the coal, fly ash, and bottom ash at a coal-fired power plant. Samples were collected from a coal-fired power plant in Malaysia. Results: Gamma spectrometry was used to determine the specific concentrations of NORMs, namely 40K, 232Th, 238U, in each sample. The radioactivity ranges for 238U, 232Th, and 40K in the soil were 22.7-150.7 Bq/kg, 20.7- 153.6 Bq/kg, and 68.6-1594.4 Bq/kg, respectively. The coal, fly, and bottom ash samples contained 67.54-189.18 Bq/kg of 238U, 50.2-134.57 Bq/kg of 232Th, and 327.54-1114.40 Bq/kg of 40K. The radium equivalent activities (Raeq) in the samples were 164.55, 467.42, and 429.09 Bq/kg, respectively. Meanwhile, the absorbed dose rate (ADR) in the air ranged from 76.04 to 217.44 nGy/h. Internal and external hazards ranged from 0.44 to 1.26 and 0.63 to 1.77, respectively. The annual gonadal dose equivalent (AGDE) value fluctuated between 521.28 and 1,496.99 ?Sv. Conclusion: The excess lifetime cancer risk (ELCR) oscillated from 1.30�10-3 to 3.75�10-3 indoors and 0.32�10-3 to 0.95�10-3 outdoors. � 2023 Novin Medical Radiation Institute. All rights reserved. Final 2024-10-14T03:17:30Z 2024-10-14T03:17:30Z 2023 Article 10.52547/ijrr.21.4.27 2-s2.0-85184566675 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184566675&doi=10.52547%2fijrr.21.4.27&partnerID=40&md5=f2af8eaf0436c548584fec9d3df0569d https://irepository.uniten.edu.my/handle/123456789/33950 21 4 797 804 Novin Medical Radiation Institute Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic bottom ash
Coal
fly ash
K-40
thorium-232
uranium-238
germanium
naturally occurring radioactive material
potassium 40
radioactive material
radioisotope
thorium 232
unclassified drug
uranium 238
absorbed dose rate
annual effective dose equivalent
Article
bottom ash
cancer risk
coal-fired power plant
excess lifetime cancer risk
fly ash
gamma spectrometry
human
natural radioactivity
radiation dose
radiation hazard
radioactivity
radiology
risk factor
sampling
X ray diffraction
spellingShingle bottom ash
Coal
fly ash
K-40
thorium-232
uranium-238
germanium
naturally occurring radioactive material
potassium 40
radioactive material
radioisotope
thorium 232
unclassified drug
uranium 238
absorbed dose rate
annual effective dose equivalent
Article
bottom ash
cancer risk
coal-fired power plant
excess lifetime cancer risk
fly ash
gamma spectrometry
human
natural radioactivity
radiation dose
radiation hazard
radioactivity
radiology
risk factor
sampling
X ray diffraction
Mohamed H.
Pauzi A.M.
Ahmad N.
Karim N.A.
Wazir M.N.U.I.
Zaiul Bahri C.N.A.C.
Idris M.I.
Natural radioactivity analysis and radiological impact assessment from a coal power plant
description Background: Through combustion, a coal-fired power plant produces by-products, such as fly ash and bottom ash, which contain significant concentrations of radionuclides that cause environmental contamination, leading to health problems. Materials and Methods: This study investigated the specific activity and radiological impacts of naturally occurring radioactive materials (NORMs) in the coal, fly ash, and bottom ash at a coal-fired power plant. Samples were collected from a coal-fired power plant in Malaysia. Results: Gamma spectrometry was used to determine the specific concentrations of NORMs, namely 40K, 232Th, 238U, in each sample. The radioactivity ranges for 238U, 232Th, and 40K in the soil were 22.7-150.7 Bq/kg, 20.7- 153.6 Bq/kg, and 68.6-1594.4 Bq/kg, respectively. The coal, fly, and bottom ash samples contained 67.54-189.18 Bq/kg of 238U, 50.2-134.57 Bq/kg of 232Th, and 327.54-1114.40 Bq/kg of 40K. The radium equivalent activities (Raeq) in the samples were 164.55, 467.42, and 429.09 Bq/kg, respectively. Meanwhile, the absorbed dose rate (ADR) in the air ranged from 76.04 to 217.44 nGy/h. Internal and external hazards ranged from 0.44 to 1.26 and 0.63 to 1.77, respectively. The annual gonadal dose equivalent (AGDE) value fluctuated between 521.28 and 1,496.99 ?Sv. Conclusion: The excess lifetime cancer risk (ELCR) oscillated from 1.30�10-3 to 3.75�10-3 indoors and 0.32�10-3 to 0.95�10-3 outdoors. � 2023 Novin Medical Radiation Institute. All rights reserved.
author2 59095089800
author_facet 59095089800
Mohamed H.
Pauzi A.M.
Ahmad N.
Karim N.A.
Wazir M.N.U.I.
Zaiul Bahri C.N.A.C.
Idris M.I.
format Article
author Mohamed H.
Pauzi A.M.
Ahmad N.
Karim N.A.
Wazir M.N.U.I.
Zaiul Bahri C.N.A.C.
Idris M.I.
author_sort Mohamed H.
title Natural radioactivity analysis and radiological impact assessment from a coal power plant
title_short Natural radioactivity analysis and radiological impact assessment from a coal power plant
title_full Natural radioactivity analysis and radiological impact assessment from a coal power plant
title_fullStr Natural radioactivity analysis and radiological impact assessment from a coal power plant
title_full_unstemmed Natural radioactivity analysis and radiological impact assessment from a coal power plant
title_sort natural radioactivity analysis and radiological impact assessment from a coal power plant
publisher Novin Medical Radiation Institute
publishDate 2024
_version_ 1814061159130595328
score 13.214268