INFLUENCE OF AIR MASS TRANSFER ON THE VARIABILITY OF CHEMICAL COMPOSITION OF ATMOSPHERIC AEROSOL OVER BAIKAL
Section: OPTICAL INVESTIGATION OF OCEAN
Authors:
1.
Limnologicheskiy institut SO RAN
2.
Limnological Institute of the Siberian Branch of the Russian Academy of Sciences
3.
Limnologicheskiy institut SO RAN
4.
Limnologicheskiy institut SO RAN
Type:
Сonference article
Pages:
from 332
to 335
Published:
17.08.2026
Subject area:
UDC 504.3
Language:
Russian
Keywords:
Baikal, atmospheric aerosol, chemical composition
Funding:
The research was carried out under the basic project FWSR-2026-0017.
Abstract:
For the first time in 2024-2025, aerosol particles with a size of 0.8, 2.0, 5.0, and 10.0 microns were collected over Lake Baikal for subsequent chemical analysis of the ionic and trace element composition. The total concentrations of ions in different aerosol fractions varied from 0.7 to 4.5 μg/m3, depending on the route and direction of the air masses. The concentrations of the sum of 27 trace elements in the aerosol, as well as the concentrations of ions, changed as the ship moved from south to north. In general, higher concentrations were found for the elements Fe, Mn, Al, B, Sn, and Ni. It was noted that the trace elements of terrigenous origin (Fe, Mn, Al, Ba) contribute the most to the overall level of atmospheric pollution over Lake Baikal (85%).
For the first time in 2024-2025, aerosol particles with a size of 0.8, 2.0, 5.0, and 10.0 microns were collected over Lake Baikal for subsequent chemical analysis of the ionic and trace element composition. The total concentrations of ions in different aerosol fractions varied from 0.7 to 4.5 μg/m3, depending on the route and direction of the air masses. The concentrations of the sum of 27 trace elements in the aerosol, as well as the concentrations of ions, changed as the ship moved from south to north. In general, higher concentrations were found for the elements Fe, Mn, Al, B, Sn, and Ni. It was noted that the trace elements of terrigenous origin (Fe, Mn, Al, Ba) contribute the most to the overall level of atmospheric pollution over Lake Baikal (85%).
Keywords:
Baikal, atmospheric aerosol, chemical composition
Baikal, atmospheric aerosol, chemical composition
1. Chebunina N. S., Golobokova L. P., Egorov V. I., Hodzher T. V. Sostav i morfologiya chastic prizemnogo atmosfernogo aerozolya na urbanizirovannoy stancii Irkutsk v Yuzhnom Pribaykal'e . // Optika atmosfery i okeana. 2025. T. 38. № 12. S. 996–1003. DOI:https://doi.org/10.15372/AOO20251205.
