Szczegóły publikacji
Opis bibliograficzny
Exceptional plutonium accumulation in glacier mice and cryoconite in Icelandic glaciers / Katarzyna Kołtonik, Kamil Wojciechowski, Dariusz Sala, Kamil RASZKA, Krzysztof Samolej, Michał Bonczyk, Przemysław WACHNIEW, Edyta Łokas // Science of the Total Environment ; ISSN 0048-9697. — 2025 — vol. 999 art. no. 180370, s. 1–9. — Bibliogr. s. 8–9, Abstr. — Publikacja dostępna online od: 2025-09-01
Autorzy (8)
- Kołtonik Katarzyna
- Wojciechowski Kamil
- Sala Dariusz
- AGHRaszka Kamil
- Samolej Krzysztof
- Bonczyk Michał
- AGHWachniew Przemysław
- Łokas Edyta
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 162188 |
|---|---|
| Data dodania do BaDAP | 2025-09-29 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.scitotenv.2025.180370 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Science of the Total Environment |
Abstract
This study comprehensively surveys artificial (137Cs, 241Am, 238Pu, 239+240Pu) and natural (210Pb) radionuclides in Icelandic glacier mice and cryoconite. Samples were collected from five glaciers in Iceland – Fjallsjökull, Falljökull, Kvíárjökull, Skaftafellsjökull, and Sólheimajökull – with glacier mice found only at the first three sites. Radionuclide concentrations in both glacier mice and cryoconite were slightly higher than those previously reported in Iceland. The maximum activity concentrations measured in glacier mice were: 407 ± 30 Bq kg−1 for 137Cs, 2690 ± 170 Bq kg−1 for 210Pb, 52.6 ± 2.2 Bq kg−1 for 239+240Pu, 1.23 ± 0.14 Bq kg−1 for 238Pu, and 32.4 ± 6.2 Bq kg−1 for 241Am. In cryoconite, the maximum activity concentrations were 244 ± 16 Bq kg−1 for 137Cs, 3680 ± 175 Bq kg−1 for 210Pb, 37.7 ± 6.6 Bq kg−1 for 239+240Pu, 3.17 ± 0.35 Bq kg−1 for 238Pu, and 18.6 ± 1.8 Bq kg−1 for 241Am. On average, glacier mice exhibited lower radionuclide activity concentrations compared to cryoconite. The highest mean activity concentrations measured in glacier mice were 109 Bq kg−1 for 137Cs, 893 Bq kg−1 for 210Pb, 20.1 Bq kg−1 for 239+240Pu, 0.41 Bq kg−1 for 238Pu, and 8.8 Bq kg−1 for 241Am. In cryoconite, the corresponding highest mean activity concentrations were 141 Bq kg−1 for 137Cs, 1827 Bq kg−1 for 210Pb, 21.3 Bq kg−1 for 239+240Pu, 0.49 Bq kg−1 for 238Pu, and 10.5 Bq kg−1 for 241Am. As evidenced by the 238Pu/239+240Pu and 241Am/239+240Pu activity ratios the primary source of these isotopes is global fallout. Additionally, the 240Pu/239Pu atom ratio further indicates the dominance of global fallout. A notable finding of this study is the elevated levels of 239+240Pu as compared to other Icelandic samples, although the origin of this phenomenon remains unclear. These results confirm that both cryoconite and glacier mice participate in the cycling of long-range transported pollutants within glacial and proglacial ecosystems in Iceland, albeit likely on a limited scale.
