Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra Plains
This study evaluated the integrity of the geosphere of the Accra Plains to host a radioactive waste disposal facility for Ghana’s radioactive waste materials. The study thus assessed the migration of radioactive contaminant from a hypothetical radioactive waste disposal facility through the geosphe...
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| Format: | Article |
| Language: | English |
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Environmental Research Institute, Chulalongkorn University
2022-01-01
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| Series: | Applied Environmental Research |
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| Online Access: | https://ph01-ohno.tci-thaijo.org/index.php/aer/article/view/247413 |
| _version_ | 1798039460219191296 |
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| author | Paul Essel Mark Amo-Boateng Dominic Otoo Thomas Tetteh Akiti |
| author_facet | Paul Essel Mark Amo-Boateng Dominic Otoo Thomas Tetteh Akiti |
| author_sort | Paul Essel |
| collection | DOAJ |
| description |
This study evaluated the integrity of the geosphere of the Accra Plains to host a radioactive waste disposal facility for Ghana’s radioactive waste materials. The study thus assessed the migration of radioactive contaminant from a hypothetical radioactive waste disposal facility through the geosphere to the biosphere in the Accra Plains. The Accra Plains is predominantly underlain by schist rocks, hence the hydrogeologic parameters of schist rock from literature were used as input data. AMBER software was used to develop a model to estimate the peak total annual effective dose from all the radionuclides at various receptor locations. The endpoint of interest was the dose received by a receptor for ingesting water from an abstraction well located at distance; 100 m, 200 m, 500 m, 1 km, 2 km, 3 km, 4 km and 5 km from the hypothetical repository. From the simulation, the annual effective dose values ranged from 2.07E-25 Sv/y to 6.45E-17 Sv/y which are all below the International Commission on Radiological Protection (ICRP) dose constraint of 0.3 mSv/y. The lifetime cancer risk for ingesting water from the abstraction wells were then calculated from the annual effective dose values. The resulting values ranged from 1.06E-24 to 3.30E-16 thus indicating that the potential cancer risk for ingesting water from the abstraction wells located within 100 m to 5 km from the hypothetical disposal facility is negligible. The model results demonstrate that, siting a disposal facility in the study area might not pose any significant risk to the sprawling population and the environment.
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| first_indexed | 2024-04-11T21:54:11Z |
| format | Article |
| id | doaj.art-7d6b0c09bc46461e923080cc1b4482d3 |
| institution | Directory Open Access Journal |
| issn | 2287-0741 2287-075X |
| language | English |
| last_indexed | 2024-04-11T21:54:11Z |
| publishDate | 2022-01-01 |
| publisher | Environmental Research Institute, Chulalongkorn University |
| record_format | Article |
| series | Applied Environmental Research |
| spelling | doaj.art-7d6b0c09bc46461e923080cc1b4482d32022-12-22T04:01:10ZengEnvironmental Research Institute, Chulalongkorn UniversityApplied Environmental Research2287-07412287-075X2022-01-01441Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra PlainsPaul Essel0Mark Amo-Boateng1Dominic Otoo2Thomas Tetteh Akiti3Radiation Protection Institute, Ghana Atomic Energy Commission, Accra, GhanaUniversity of Energy and Natural Resources, Sunyani, GhanaUniversity of Energy and Natural Resources, Sunyani, GhanaGraduate School of Nuclear and Allied Sciences, University of Ghana, Atomic Campus, Ghana This study evaluated the integrity of the geosphere of the Accra Plains to host a radioactive waste disposal facility for Ghana’s radioactive waste materials. The study thus assessed the migration of radioactive contaminant from a hypothetical radioactive waste disposal facility through the geosphere to the biosphere in the Accra Plains. The Accra Plains is predominantly underlain by schist rocks, hence the hydrogeologic parameters of schist rock from literature were used as input data. AMBER software was used to develop a model to estimate the peak total annual effective dose from all the radionuclides at various receptor locations. The endpoint of interest was the dose received by a receptor for ingesting water from an abstraction well located at distance; 100 m, 200 m, 500 m, 1 km, 2 km, 3 km, 4 km and 5 km from the hypothetical repository. From the simulation, the annual effective dose values ranged from 2.07E-25 Sv/y to 6.45E-17 Sv/y which are all below the International Commission on Radiological Protection (ICRP) dose constraint of 0.3 mSv/y. The lifetime cancer risk for ingesting water from the abstraction wells were then calculated from the annual effective dose values. The resulting values ranged from 1.06E-24 to 3.30E-16 thus indicating that the potential cancer risk for ingesting water from the abstraction wells located within 100 m to 5 km from the hypothetical disposal facility is negligible. The model results demonstrate that, siting a disposal facility in the study area might not pose any significant risk to the sprawling population and the environment. https://ph01-ohno.tci-thaijo.org/index.php/aer/article/view/247413Lifetime cancer riskAnnual effective doseAccra PlainsDisposal facility |
| spellingShingle | Paul Essel Mark Amo-Boateng Dominic Otoo Thomas Tetteh Akiti Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra Plains Applied Environmental Research Lifetime cancer risk Annual effective dose Accra Plains Disposal facility |
| title | Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra Plains |
| title_full | Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra Plains |
| title_fullStr | Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra Plains |
| title_full_unstemmed | Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra Plains |
| title_short | Modelling of Radiological Health Risk in Water from Abstraction Well Close to a Hypothetical Radioactive Waste Repository in the Accra Plains |
| title_sort | modelling of radiological health risk in water from abstraction well close to a hypothetical radioactive waste repository in the accra plains |
| topic | Lifetime cancer risk Annual effective dose Accra Plains Disposal facility |
| url | https://ph01-ohno.tci-thaijo.org/index.php/aer/article/view/247413 |
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