Radioactive elements in atmospheric precipitations of the Western Siberia

Mikhail Melgunov, Kseniya Mezina, Boris Sherbov, Yuliya Vosel, Inna Zhurkova, Dmitriy Belyanin

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

The radionuclide composition of the atmospheric precipitations (rain and snow) fell out on the territory of the South of the Western Siberia in 2016-2017 was studied. It is shown that, the maximum of deposition of Be and Pb were observed in a foothill zone (618 and 171 Bq/m), the minimum in the Alpine zone (104 and 27 Bq/m), for the forest-steppe zone these values are 237-340 Bq/m and 73-93 Bq/m. Deposition density of Cs in comparison with Pb and Be is small and does not exceed 1 Bq/m. Average values of total specific activities of Pb and Be in rain waters are 242 and 2434 mBq/l, in the snowmelt 506 and 1611 mBq/l. Be/Pb activity ratio in rain waters more than three times higher, than in snowmelt: 10,1 to 3,2. The highest values of Be/Pb activity ratios are observed in the finest fraction (<0.45 μm) of the suspended matter: 19 in rain and 10 in snowmelt waters.

Original languageEnglish
Article number10003
Number of pages5
JournalE3S Web of Conferences
Volume98
DOIs
Publication statusPublished - 7 Jun 2019
Event16th International Symposium on Water-Rock Interaction, WRI 2019 and 13th International Symposium on Applied Isotope Geochemistry, 1st IAGC International Conference - Tomsk, Russian Federation
Duration: 21 Jul 201926 Jul 2019

Keywords

  • LONG-TERM VARIATIONS
  • DEPOSITIONAL CHARACTERISTICS
  • TEMPORAL VARIATIONS
  • SURFACE AIR
  • BE-7
  • PB-210
  • RADIONUCLIDES
  • VARIABILITY
  • BERYLLIUM-7
  • FALLOUT

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