Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Distribution of 137Cs in lichens, mosses and pine needles along the transect from the north to the south of Western Siberia. / Vosel, Yulia; Belyanin, Dmitriy; Vosel, Sergey и др.
в: Science of the Total Environment, Том 789, 147874, 01.10.2021, стр. 147874.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Distribution of 137Cs in lichens, mosses and pine needles along the transect from the north to the south of Western Siberia
AU - Vosel, Yulia
AU - Belyanin, Dmitriy
AU - Vosel, Sergey
AU - Melgunov, Mikhail
AU - Mezina, Kseniya
AU - Shcherbov, Boris
N1 - Funding Information: All field and analytical studies were supported by grant from the Russian Science Foundation (project No 18-77-10039). Adaptation of gamma spectrometry methods supported by the state assignment IGM SB RAS. S.Vosel (Voevodsky Institute of Chemical Kinetics and Combustion SB RAS) acknowledge the core funding from the Russian Federal Ministry of Science and Higher Education. Analytical studies were carried out in the Analytical Center for multi-element and isotope research SB RAS. Funding Information: All field and analytical studies were supported by grant from the Russian Science Foundation (project No 18-77-10039 ). Adaptation of gamma spectrometry methods supported by the state assignment IGM SB RAS. S.Vosel (Voevodsky Institute of Chemical Kinetics and Combustion SB RAS) acknowledge the core funding from the Russian Federal Ministry of Science and Higher Education. Analytical studies were carried out in the Analytical Center for multi-element and isotope research SB RAS. Publisher Copyright: © 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/10/1
Y1 - 2021/10/1
N2 - The 137Cs content in mosses (Hylocomium splendens), lichens (Cladonia stellaris) and the needles of the Siberian pine (Pinus sibirica) and the common pine (Pinus sylvestris) along the transect from the north to the south of Western Siberia from N. 67.5° to N. 55° has been investigated. The appearance of 137Cs here is linked to the nuclear weapon tests at Novaya Zemlya. The measurements have shown that at all sampling points south of N. 59.6° there is a very sharp decrease in the 137Cs specific activity in all components of the ecosystem (in mosses and lichens by about 20 times, and in the needles of conifers by 100 times) instead of a smooth decrease. This fact can be explained by the existence of the global atmospheric circulation consisting of three circulation cells in the Northern hemisphere. It is just around N. 60° that the boundary between the Polar cell and the circulation cell of midle latitudes is drawn. At this boundary, the counter surface air flows of these cells (in our case, a contaminated flow from the north and a clean one from the south) collide and generate the upward air flows here that take 137Cs away. In addition, there is water vapor condensation in the upward flows resulting in snowfalls, rains and thunderstorms. And with these precipitation events, large amounts of 137Cs should have fallen out to the north of the Polar cell boundary during the Novaya Zemlya tests. The areas south around of N. 60° have been supposed to remain clean, which is what is being observed.
AB - The 137Cs content in mosses (Hylocomium splendens), lichens (Cladonia stellaris) and the needles of the Siberian pine (Pinus sibirica) and the common pine (Pinus sylvestris) along the transect from the north to the south of Western Siberia from N. 67.5° to N. 55° has been investigated. The appearance of 137Cs here is linked to the nuclear weapon tests at Novaya Zemlya. The measurements have shown that at all sampling points south of N. 59.6° there is a very sharp decrease in the 137Cs specific activity in all components of the ecosystem (in mosses and lichens by about 20 times, and in the needles of conifers by 100 times) instead of a smooth decrease. This fact can be explained by the existence of the global atmospheric circulation consisting of three circulation cells in the Northern hemisphere. It is just around N. 60° that the boundary between the Polar cell and the circulation cell of midle latitudes is drawn. At this boundary, the counter surface air flows of these cells (in our case, a contaminated flow from the north and a clean one from the south) collide and generate the upward air flows here that take 137Cs away. In addition, there is water vapor condensation in the upward flows resulting in snowfalls, rains and thunderstorms. And with these precipitation events, large amounts of 137Cs should have fallen out to the north of the Polar cell boundary during the Novaya Zemlya tests. The areas south around of N. 60° have been supposed to remain clean, which is what is being observed.
KW - Cs
KW - Coniferous needles
KW - Global atmospheric circulation
KW - Liches
KW - Moss
UR - http://www.scopus.com/inward/record.url?scp=85106937711&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2021.147874
DO - 10.1016/j.scitotenv.2021.147874
M3 - Article
C2 - 34052487
AN - SCOPUS:85106937711
VL - 789
SP - 147874
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 0048-9697
M1 - 147874
ER -
ID: 29130824