Academic Journal
Determination of uranium and plutonium isotopes in water and sediment samples of the Cutzamala system dams.
| Τίτλος: | Determination of uranium and plutonium isotopes in water and sediment samples of the Cutzamala system dams. |
|---|---|
| Συγγραφείς: | Castillo Colín, Víctor A., Almazán Torres, María-Guadalupe, Regil, Eduardo Ordoñez |
| Πηγή: | Radiochimica Acta; Jul2026, Vol. 114 Issue 7, p493-505, 13p |
| Θεματικοί όροι: | Uranium isotopes, Plutonium isotopes, Isotopic fractionation, Alpha ray spectrometry, Dams, Sediment sampling, Background radiation, Water sampling |
| Γεωγραφικοί όροι: | Mexico |
| Περίληψη: | Uranium and plutonium isotopes were determined in water and sediment samples from the main dams that feeds the Cutzamala system, Villa Victoria and Valle de Bravo in the State of Mexico, Mexico. Actinides were extract and purify from the samples using chemical and radiochemical techniques, deposited in fine sources and measured by alpha spectrometry. Uranium isotopes in the water and sediment samples were found within the levels of natural uranium. The presence of plutonium isotopes were also detected at very low level and, in some cases, they were undetectable. The uranium activity concentration for water and sediment samples varied from 0.48 to 7.00 mBq/L and from 68 to 1,523 mBq/kg, respectively. The estimated levels for 239+240Pu in water and sediment samples were found between 0.12 and 0.4 mBq/L and between 1.2 and 17 mBq/kg, respectively. Furthermore, the 234U/238U isotopic ratios revealed important differences between the studied dams. The samples collected from Valle de Bravo dam exhibit a 234U/238U isotopic ratios >1. In contrast, samples from Villa Victoria dam present ratios <1. These differences could be associated to the type of discharges, e.g. due to the use of phosphate fertilizers, the rock leaching, among others. The levels of uranium and plutonium isotopes in the water and sediments samples analyzed are very low, and no health effects are expected. [ABSTRACT FROM AUTHOR] |
| Copyright of Radiochimica Acta is the property of De Gruyter and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Βάση Δεδομένων: | Complementary Index |
| FullText | Text: Availability: 0 |
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| Header | DbId: edb DbLabel: Complementary Index An: 195148314 RelevancyScore: 1082 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 1082.42175292969 |
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| Items | – Name: Title Label: Title Group: Ti Data: Determination of uranium and plutonium isotopes in water and sediment samples of the Cutzamala system dams. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Castillo+Colín%2C+Víctor+A%2E%22">Castillo Colín, Víctor A.</searchLink><br /><searchLink fieldCode="AR" term="%22Almazán+Torres%2C+María-Guadalupe%22">Almazán Torres, María-Guadalupe</searchLink><br /><searchLink fieldCode="AR" term="%22Regil%2C+Eduardo+Ordoñez%22">Regil, Eduardo Ordoñez</searchLink> – Name: TitleSource Label: Source Group: Src Data: Radiochimica Acta; Jul2026, Vol. 114 Issue 7, p493-505, 13p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Uranium+isotopes%22">Uranium isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Plutonium+isotopes%22">Plutonium isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Isotopic+fractionation%22">Isotopic fractionation</searchLink><br /><searchLink fieldCode="DE" term="%22Alpha+ray+spectrometry%22">Alpha ray spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Dams%22">Dams</searchLink><br /><searchLink fieldCode="DE" term="%22Sediment+sampling%22">Sediment sampling</searchLink><br /><searchLink fieldCode="DE" term="%22Background+radiation%22">Background radiation</searchLink><br /><searchLink fieldCode="DE" term="%22Water+sampling%22">Water sampling</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Mexico%22">Mexico</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Uranium and plutonium isotopes were determined in water and sediment samples from the main dams that feeds the Cutzamala system, Villa Victoria and Valle de Bravo in the State of Mexico, Mexico. Actinides were extract and purify from the samples using chemical and radiochemical techniques, deposited in fine sources and measured by alpha spectrometry. Uranium isotopes in the water and sediment samples were found within the levels of natural uranium. The presence of plutonium isotopes were also detected at very low level and, in some cases, they were undetectable. The uranium activity concentration for water and sediment samples varied from 0.48 to 7.00 mBq/L and from 68 to 1,523 mBq/kg, respectively. The estimated levels for <superscript>239+240</superscript>Pu in water and sediment samples were found between 0.12 and 0.4 mBq/L and between 1.2 and 17 mBq/kg, respectively. Furthermore, the <superscript>234</superscript>U/<superscript>238</superscript>U isotopic ratios revealed important differences between the studied dams. The samples collected from Valle de Bravo dam exhibit a <superscript>234</superscript>U/<superscript>238</superscript>U isotopic ratios >1. In contrast, samples from Villa Victoria dam present ratios <1. These differences could be associated to the type of discharges, e.g. due to the use of phosphate fertilizers, the rock leaching, among others. The levels of uranium and plutonium isotopes in the water and sediments samples analyzed are very low, and no health effects are expected. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Radiochimica Acta is the property of De Gruyter and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1515/ract-2025-0092 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 493 Subjects: – SubjectFull: Mexico Type: general – SubjectFull: Uranium isotopes Type: general – SubjectFull: Plutonium isotopes Type: general – SubjectFull: Isotopic fractionation Type: general – SubjectFull: Alpha ray spectrometry Type: general – SubjectFull: Dams Type: general – SubjectFull: Sediment sampling Type: general – SubjectFull: Background radiation Type: general – SubjectFull: Water sampling Type: general Titles: – TitleFull: Determination of uranium and plutonium isotopes in water and sediment samples of the Cutzamala system dams. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Castillo Colín, Víctor A. – PersonEntity: Name: NameFull: Almazán Torres, María-Guadalupe – PersonEntity: Name: NameFull: Regil, Eduardo Ordoñez IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00338230 Numbering: – Type: volume Value: 114 – Type: issue Value: 7 Titles: – TitleFull: Radiochimica Acta Type: main |
| ResultId | 1 |