Habib, Md. Ahosan; Basuki, Triyono; Miyashita, Sunao; Bekelesi, Wiseman; Nakashima, Satoru; Techato, Kuaanan; Khan, Rahat; Majlis, Abdul Baquee Khan; Phoungthong, Khamphe, E-mail: khamphe.p@psu.ac.th2019
AbstractAbstract
[en] To study the level of radioactivity concentrations from a coal-based power plant (Barapukuria, Bangladesh) and to estimate the associated radiological hazards, coal and associated combustion residuals from the power plant were analyzed by gamma-ray spectrometry with high-purity germanium (HPGe) detector. The results reveal that the mean radioactivity (Bq kg−1) concentrations in feed coal samples are 66.5 ± 24.2, 41.7 ± 18.2, 62.5 ± 26.3, and 232.4 ± 227.2 for U-238, Ra-226, Th-232, and K-40, respectively, while in coal combustion residuals (CCRs), they are 206.3 ± 72.4, 140.5 ± 28.4, 201.7 ± 44.7, and 232.5 ± 43.8, respectively. With the exception of K-40, all the determined natural radionuclides are considerably higher in the investigated feed coal and associated combustion residues as compared with the world soil and world coal mean activities. On the average, CCRs contains 3.10–3.37 times more natural radionuclides than the feed coal, except for K-40. The radioactivity of fly ash and bottom ash is fractionated, and ratio ranges from 1.40 to 1.57. The mean values of the radiological hazard indices in the coal and their associated residuals are 153.1 and 446.8 Bq kg−1 for radium equivalent activity, 0.41 and 1.21 for the external hazard index, 70 and 200.1 nGy h−1 for the absorbed gamma dose rate, 0.09 and 0.25 mSv year−1 for the annual effective dose rate, and 3.0 × 10−4 and 8.6 × 10−4 Sv−1 for the excess lifetime cancer risk, respectively, most of which exceed the UNSCEAR-recommended respective threshold limits. The outcome of this study suggests a potential radiological threat to the environment as well as to the health of occupational workers and nearby inhabitants from the examined samples.
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BANGLADESH, BITUMINOUS COAL, CONCENTRATION RATIO, DOSE RATES, EFFECTIVE RADIATION DOSES, FLY ASH, GAMMA SPECTROSCOPY, HIGH-PURITY GE DETECTORS, NATURAL RADIOACTIVITY, NEOPLASMS, POTASSIUM 40, RADIATION HAZARDS, RADIOECOLOGICAL CONCENTRATION, RADIUM, RADIUM 226, SOILS, THERMAL POWER PLANTS, THORIUM 232, UNSCEAR, URANIUM 238
ACTINIDE NUCLEI, AEROSOL WASTES, ALKALINE EARTH ISOTOPES, ALKALINE EARTH METALS, ALPHA DECAY RADIOISOTOPES, ASHES, ASIA, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BLACK COAL, CARBON 14 DECAY RADIOISOTOPES, CARBONACEOUS MATERIALS, COAL, COMBUSTION PRODUCTS, DEVELOPING COUNTRIES, DIMENSIONLESS NUMBERS, DISEASES, DOSES, ECOLOGICAL CONCENTRATION, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTS, ENERGY SOURCES, EVEN-EVEN NUCLEI, FOSSIL FUELS, FUELS, GE SEMICONDUCTOR DETECTORS, HAZARDS, HEALTH HAZARDS, HEAVY ION DECAY RADIOISOTOPES, HEAVY NUCLEI, INTERNATIONAL ORGANIZATIONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, LIGHT NUCLEI, MATERIALS, MEASURING INSTRUMENTS, METALS, NANOSECONDS LIVING RADIOISOTOPES, NUCLEI, ODD-ODD NUCLEI, POTASSIUM ISOTOPES, POWER PLANTS, RADIATION DETECTORS, RADIATION DOSES, RADIOACTIVITY, RADIOISOTOPES, RADIUM ISOTOPES, RESIDUES, SEMICONDUCTOR DETECTORS, SPECTROSCOPY, SPONTANEOUS FISSION RADIOISOTOPES, THORIUM ISOTOPES, URANIUM ISOTOPES, WASTES, YEARS LIVING RADIOISOTOPES
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Habib, Md. Ahosan; Basuki, Triyono; Miyashita, Sunao; Bekelesi, Wiseman; Nakashima, Satoru; Techato, Kuaanan; Khan, Rahat; Majlis, Abdul Baquee Khan; Phoungthong, Khamphe, E-mail: khamphe.p@psu.ac.th2019
AbstractAbstract
[en] The original version of this article unfortunately contained an error in eq. 1. The denominator Ɛ of Eq. (1) was missing.
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Copyright (c) 2019 Springer Nature Switzerland AG; Country of input: International Atomic Energy Agency (IAEA)
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