Secondary radioactive contamination of the Black Sea: New evidence from plutonium vertical distribution in its deep bottom sediments.
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| Format: | Artículo científico |
| Language: | en |
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Marine pollution bulletin
2025
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| author | Proskurnin, Vladislav Yurievich Paraskiv, Artem Alekseevich Tereshchenko, Nataliya Nickolaevna Chuzhikova, Olga Dmitrievna |
| author_facet | Proskurnin, Vladislav Yurievich Paraskiv, Artem Alekseevich Tereshchenko, Nataliya Nickolaevna Chuzhikova, Olga Dmitrievna Proskurnin, Vladislav Yurievich Paraskiv, Artem Alekseevich Tereshchenko, Nataliya Nickolaevna Chuzhikova, Olga Dmitrievna |
| collection | PubMed - marine biology |
| contents | Secondary radioactive contamination of the Black Sea: New evidence from plutonium vertical distribution in its deep bottom sediments. Proskurnin, Vladislav Yurievich Paraskiv, Artem Alekseevich Tereshchenko, Nataliya Nickolaevna Chuzhikova, Olga Dmitrievna Plutonium Black Sea Geologic Sediments Water Pollutants, Radioactive Radiation Monitoring The vertical distribution of anthropogenic plutonium isotopes (Pu and Pu) in the bottom sediments from eastern deep-water area of the Black Sea was studied. Three peak concentrations were obtained for both Pu and Pu, but their positions in sediment profiles coincided only partially. The combination of the distribution of plutonium isotope concentrations and Pu/Pu activity ratios allowed dating of sediments and determining the sedimentary characteristics of the studied area. Dynamics of plutonium sedimentation fluxes was studied using geochronological reconstruction technique. Obtained trends of changes in plutonium sedimentation fluxes during 1940s-2013 revealed its secondary input into the Black Sea marine environment both in early 2000s and 2010s. The isotopic signature of plutonium in these increased fluxes indicated radionuclides most likely of Chernobyl NPP origin. Thus the entry of Chernobyl derived secondary radioactive contamination into the Black Sea was confirmed by new data on plutonium vertical distribution in its bottom sediments. |
| format | Artículo científico |
| id | pubmed_40561620 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Marine pollution bulletin |
| record_format | pubmed |
| spellingShingle | Secondary radioactive contamination of the Black Sea: New evidence from plutonium vertical distribution in its deep bottom sediments. Proskurnin, Vladislav Yurievich Paraskiv, Artem Alekseevich Tereshchenko, Nataliya Nickolaevna Chuzhikova, Olga Dmitrievna Plutonium Black Sea Geologic Sediments Water Pollutants, Radioactive Radiation Monitoring Secondary radioactive contamination of the Black Sea: New evidence from plutonium vertical distribution in its deep bottom sediments. Proskurnin, Vladislav Yurievich Paraskiv, Artem Alekseevich Tereshchenko, Nataliya Nickolaevna Chuzhikova, Olga Dmitrievna Plutonium Black Sea Geologic Sediments Water Pollutants, Radioactive Radiation Monitoring The vertical distribution of anthropogenic plutonium isotopes (Pu and Pu) in the bottom sediments from eastern deep-water area of the Black Sea was studied. Three peak concentrations were obtained for both Pu and Pu, but their positions in sediment profiles coincided only partially. The combination of the distribution of plutonium isotope concentrations and Pu/Pu activity ratios allowed dating of sediments and determining the sedimentary characteristics of the studied area. Dynamics of plutonium sedimentation fluxes was studied using geochronological reconstruction technique. Obtained trends of changes in plutonium sedimentation fluxes during 1940s-2013 revealed its secondary input into the Black Sea marine environment both in early 2000s and 2010s. The isotopic signature of plutonium in these increased fluxes indicated radionuclides most likely of Chernobyl NPP origin. Thus the entry of Chernobyl derived secondary radioactive contamination into the Black Sea was confirmed by new data on plutonium vertical distribution in its bottom sediments. |
| title | Secondary radioactive contamination of the Black Sea: New evidence from plutonium vertical distribution in its deep bottom sediments. |
| topic | Plutonium Black Sea Geologic Sediments Water Pollutants, Radioactive Radiation Monitoring |
| url | https://pubmed.ncbi.nlm.nih.gov/40561620/ |