Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico
Radioactive disintegration of naturally occurring radioactive material was modeled with high precision and no assumptions to better understand serial decay in high order disequibrlia. This model helped develop a new method of quick analysis of NORM, where radioactivity can be measured with reasonabl...
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ftlouisianastuir:oai:digitalcommons.lsu.edu:gradschool_dissertations-5848 2023-06-11T04:16:16+02:00 Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico Wilson IV, Charles Algeo 2019-02-26T08:00:00Z application/pdf https://digitalcommons.lsu.edu/gradschool_dissertations/4813 https://doi.org/10.31390/gradschool_dissertations.4813 https://digitalcommons.lsu.edu/context/gradschool_dissertations/article/5848/viewcontent/Wilson_diss.pdf unknown LSU Digital Commons https://digitalcommons.lsu.edu/gradschool_dissertations/4813 doi:10.31390/gradschool_dissertations.4813 https://digitalcommons.lsu.edu/context/gradschool_dissertations/article/5848/viewcontent/Wilson_diss.pdf LSU Doctoral Dissertations Uranium Series Naturally Occurring Radioactive Material Gulf of Mexico radionuclides Environmental Monitoring text 2019 ftlouisianastuir https://doi.org/10.31390/gradschool_dissertations.4813 2023-05-28T19:17:53Z Radioactive disintegration of naturally occurring radioactive material was modeled with high precision and no assumptions to better understand serial decay in high order disequibrlia. This model helped develop a new method of quick analysis of NORM, where radioactivity can be measured with reasonable certainty before secular equilibrium is established. This approach was a significant improvement on previous similar approaches, halving time required for the same results and reduced wait time compared to classical approaches by 92%. Consequentially, NORM was measured in selected seafood samples from three areas in the Gulf of Mexico. Red Snapper, Red Drum, Northern Whiting, Spotted Trout and oysters were collected and analyzed using gamma spectroscopy. The average radioactivity concentration from these radioisotopes were 0.9 ± 0.6, 1.6 ± 1.2, and 132 ± 57 Bq kg-1, respectively for 228Ra, 226Ra, and 40K in wet weight muscle tissue samples (edible portion). These findings were in general consistency with previous research from other bodies of water. However, when compared to research performed in the Gulf of Mexico 20 years prior, a slight increase in radioactivity concentration of 226Ra was found. These measurements of radioactivity concentration provide a reasonable baseline for the species examined from the Gulf of Mexico. Text Red drum LSU Digital Commons (Louisiana State University) |
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Uranium Series Naturally Occurring Radioactive Material Gulf of Mexico radionuclides Environmental Monitoring |
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Uranium Series Naturally Occurring Radioactive Material Gulf of Mexico radionuclides Environmental Monitoring Wilson IV, Charles Algeo Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico |
topic_facet |
Uranium Series Naturally Occurring Radioactive Material Gulf of Mexico radionuclides Environmental Monitoring |
description |
Radioactive disintegration of naturally occurring radioactive material was modeled with high precision and no assumptions to better understand serial decay in high order disequibrlia. This model helped develop a new method of quick analysis of NORM, where radioactivity can be measured with reasonable certainty before secular equilibrium is established. This approach was a significant improvement on previous similar approaches, halving time required for the same results and reduced wait time compared to classical approaches by 92%. Consequentially, NORM was measured in selected seafood samples from three areas in the Gulf of Mexico. Red Snapper, Red Drum, Northern Whiting, Spotted Trout and oysters were collected and analyzed using gamma spectroscopy. The average radioactivity concentration from these radioisotopes were 0.9 ± 0.6, 1.6 ± 1.2, and 132 ± 57 Bq kg-1, respectively for 228Ra, 226Ra, and 40K in wet weight muscle tissue samples (edible portion). These findings were in general consistency with previous research from other bodies of water. However, when compared to research performed in the Gulf of Mexico 20 years prior, a slight increase in radioactivity concentration of 226Ra was found. These measurements of radioactivity concentration provide a reasonable baseline for the species examined from the Gulf of Mexico. |
format |
Text |
author |
Wilson IV, Charles Algeo |
author_facet |
Wilson IV, Charles Algeo |
author_sort |
Wilson IV, Charles Algeo |
title |
Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico |
title_short |
Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico |
title_full |
Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico |
title_fullStr |
Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico |
title_full_unstemmed |
Evaluation of Naturally Occurring Radioactive Material in Seafood from the Gulf of Mexico |
title_sort |
evaluation of naturally occurring radioactive material in seafood from the gulf of mexico |
publisher |
LSU Digital Commons |
publishDate |
2019 |
url |
https://digitalcommons.lsu.edu/gradschool_dissertations/4813 https://doi.org/10.31390/gradschool_dissertations.4813 https://digitalcommons.lsu.edu/context/gradschool_dissertations/article/5848/viewcontent/Wilson_diss.pdf |
genre |
Red drum |
genre_facet |
Red drum |
op_source |
LSU Doctoral Dissertations |
op_relation |
https://digitalcommons.lsu.edu/gradschool_dissertations/4813 doi:10.31390/gradschool_dissertations.4813 https://digitalcommons.lsu.edu/context/gradschool_dissertations/article/5848/viewcontent/Wilson_diss.pdf |
op_doi |
https://doi.org/10.31390/gradschool_dissertations.4813 |
_version_ |
1768373872126590976 |