90Sr level and behaviour in the terrestrial environment of Spitsbergen
| Autor: | Katarzyna Szufa, Chau Nguyen Dinh, Piotr Zagórski, Shiv Mohan Singh, Ewa Tomankiewicz, Anna Cwanek, Edyta Łokas |
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| Rok vydání: | 2020 |
| Předmět: |
Provenance
Radionuclide 010504 meteorology & atmospheric sciences Health Toxicology and Mutagenesis Earth science Public Health Environmental and Occupational Health 010501 environmental sciences Dispersion (geology) 01 natural sciences Pollution Analytical Chemistry Nuclear Energy and Engineering Cryoconite Soil water Environmental science Radiology Nuclear Medicine and imaging Terrestrial ecosystem Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 327:485-494 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | The research was focused on the level and distribution of 90Sr in various parts of the terrestrial environment of Spitsbergen. The mean activity concentrations were noted lower in peats and soils than in cryoconite. Analysis of vertical variation of 90Sr for soils and peats as well as isotopic ratios of 137Cs/90Sr and 239+240Pu/90Sr for cryoconite clearly showed substantial migration or depletion of the considered radionuclide. Due to the large dispersion of isotopic signatures, the 90Sr provenance was difficult to identify in the examined region. However, observed high mobility of the 90Sr might indicate the global fallout origin. |
| Databáze: | OpenAIRE |
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