Sources and accumulation of 7Be, 210Pb and 137Cs isotopes in the annual needles of larch and cedar in Novy Urengoy region (Arctic part of Western Siberia)

Dmitriy Belyanin; Yuliya Vosel; Kseniya Mezina; Mikhail Melgunov; Marya Kropacheva; Boris Shcherbov; Maksim Rubanov; Inna Zhurkova

doi:10.1051/e3sconf/20199812002

All issues

Volume 98 (2019)

E3S Web Conf., 98 (2019) 12002

Abstract

Open Access

Issue		E3S Web Conf. Volume 98, 2019 16^th International Symposium on Water-Rock Interaction (WRI-16) and 13^th International Symposium on Applied Isotope Geochemistry (1^st IAGC International Conference)


Article Number		12002
Number of page(s)		5
Section		Applied Isotope Geochemistry
DOI		https://doi.org/10.1051/e3sconf/20199812002
Published online		07 June 2019

E3S Web of Conferences 98, 12002 (2019)

Sources and accumulation of ⁷Be, ²¹⁰Pb and ¹³⁷Cs isotopes in the annual needles of larch and cedar in Novy Urengoy region (Arctic part of Western Siberia)

Dmitriy Belyanin¹^,2^*, Yuliya Vosel¹, Kseniya Mezina¹, Mikhail Melgunov¹^,2, Marya Kropacheva¹, Boris Shcherbov¹, Maksim Rubanov¹ and Inna Zhurkova¹

¹ Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Koptyug ave., 3, Novosibirsk, 630090, Russia
² Novosibirsk State University, Novosibirsk, Pirogova st., 1, 630090, Russia

^* Corresponding author: bel@igm.nsc.ru

Abstract

Annual needles of larch and cedar were sampled in the tundra zone of the Arctic part of Western Siberia in order to determine ⁷Be, ²¹⁰Pb and ¹³⁷Cs specific activities. Higher concentrations of ¹³⁷Cs in the needles of cedar relative to the needles of larch can be associated with a clear difference in the properties of accumulation and translocation of caesium among these species. Higher concentrations of ⁷Be and ²¹⁰Pb in the needles of larch relative to cedar needles and close isotopic ratios (⁷Be/²¹⁰Pb) are probably due to more efficient aerosol deposition on vegetative canopies of larch.

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