TY - JOUR

T1 - Radioactive elements in atmospheric precipitations of the Western Siberia

AU - Melgunov, Mikhail

AU - Mezina, Kseniya

AU - Sherbov, Boris

AU - Vosel, Yuliya

AU - Zhurkova, Inna

AU - Belyanin, Dmitriy

PY - 2019/6/7

Y1 - 2019/6/7

N2 - 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.

AB - 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.

KW - LONG-TERM VARIATIONS

KW - DEPOSITIONAL CHARACTERISTICS

KW - TEMPORAL VARIATIONS

KW - SURFACE AIR

KW - BE-7

KW - PB-210

KW - RADIONUCLIDES

KW - VARIABILITY

KW - BERYLLIUM-7

KW - FALLOUT

UR - http://www.scopus.com/inward/record.url?scp=85067284446&partnerID=8YFLogxK

U2 - 10.1051/e3sconf/20199810003

DO - 10.1051/e3sconf/20199810003

M3 - Conference article

AN - SCOPUS:85067284446

VL - 98

JO - E3S Web of Conferences

JF - E3S Web of Conferences

SN - 2555-0403

M1 - 10003

T2 - 16th International Symposium on Water-Rock Interaction, WRI 2019 and 13th International Symposium on Applied Isotope Geochemistry, 1st IAGC International Conference

Y2 - 21 July 2019 through 26 July 2019

ER -