ПРИРОДНІ І ТЕХНОГЕННІ РАДІОНУКЛІДИ В ЕКОСИСТЕМІ СОЛОНОГО ОЗЕРА КОЯШСЬКЕ (ПІВДЕННО-СХІДНИЙ КРИМ)
Concentrations and vertical distribution of natural (238U, 232Th, 226Ra, 210Pb, 40K) and anthropogenic (137Cs) radionuclides in the bottom sediments of the salt lake Koyashskoe located in the Opuk Nature Reserve (Kerch Peninsula, southeastern Crimea) have been studied. Natural radionuclides are the...
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| Datum: | 2023 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | Ukrainian |
| Veröffentlicht: |
Marine Ecological Journal
2023
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| Schlagworte: | |
| Online Zugang: | https://mej.od.ua/index.php/mej/article/view/288 |
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| Назва журналу: | Marine Ecological Journal |
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Marine Ecological Journal| Zusammenfassung: | Concentrations and vertical distribution of natural (238U, 232Th, 226Ra, 210Pb, 40K) and anthropogenic (137Cs) radionuclides in the bottom sediments of the salt lake Koyashskoe located in the Opuk Nature Reserve (Kerch Peninsula, southeastern Crimea) have been studied. Natural radionuclides are the main contributors to the total radioactivity of the lake sediments, while the level of their pollution with caesium-137 is 2-3 times lower than in the coastal zone of the Black Sea. High concentration of natural lead-210 in the surface sediments of the Koyashskoe Lake may suggest an active flow of its parent radionuclide – gaseous radon-222 coming from the deeper sediment layers. The average sedimentation rate in coastal zone of the lake determined using 210Pb and 137Cs is, respectively, 0.117 and 0.109 cm·yr-1 (0.113 ± 0.006 cm·yr-1 in average). |
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