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)

• Published in: E3S Web of Conferences
• Main Authors: Belyanin Dmitriy, Vosel Yuliya, Mezina Kseniya, Melgunov Mikhail, Kropacheva Marya, Shcherbov Boris, Rubanov Maksim, Zhurkova Inna
• Format: Article in Journal/Newspaper
• Language: English; French
• Published: EDP Sciences 2019
• Subjects: geo; envir; Arctic; The Needles; Urengoy; Tundra; Siberia
• Online Access: https://doi.org/10.1051/e3sconf/20199812002; https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_12002.pdf; https://doaj.org/article/ca017629e3994043ba370909c3e0b686

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.