Polycyclic aromatic hydrocarbons and PM10 solid particles above the water area of Lake Baikal in the summer of 2020

Irina I. Marinaite II; Vladimir L. Potyomkin; Elena V. Molozhnikova; Ioganes E. Penner; Maxim Yu. Shikhovtsev; Oksana N. Izosimova; Tamara V. Khodzher

doi:10.1117/12.2600470

15 December 2021 Polycyclic aromatic hydrocarbons and PM₁₀ solid particles above the water area of Lake Baikal in the summer of 2020

Irina I. Marinaite II, Vladimir L. Potyomkin, Elena V. Molozhnikova, Ioganes E. Penner, Maxim Yu. Shikhovtsev, Oksana N. Izosimova, Tamara V. Khodzher

Author Affiliations +

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119161R (2021) https://doi.org/10.1117/12.2600470
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

This article presents the results obtained during the ship borne expedition throughout the water area of Lake Baikal from 29 July to 11 August 2020. We determined the spatiotemporal heterogeneity in the distribution of PAHs and PM₁₀ in the atmosphere above the water area of Lake Baikal. Aerosol above Lake Baikal consisted of submicron particles with the proportion of more than 90% of the total number concentration. The atmosphere above the water area of the northern basin Baikal showed background values of PAHs and high PM₁₀ concentrations. When the wind direction changed from southwestern to northwestern, the PAH concentrations in smoke plumes from wildfires increased in the central and southern basins of Lake Baikal. Among the 21 priority PAHs, phenanthrene, fluoranthene and benzo(b)fluoranthene prevailed in the aerosol. We estimated the degree of atmospheric pollution with benzo(a)pyrene and PM₁₀ standardized in Russia; they did not exceed the average daily MPCs.

Citation Download Citation

Irina I. Marinaite II, Vladimir L. Potyomkin, Elena V. Molozhnikova, Ioganes E. Penner, Maxim Yu. Shikhovtsev, Oksana N. Izosimova, and Tamara V. Khodzher "Polycyclic aromatic hydrocarbons and PM₁₀ solid particles above the water area of Lake Baikal in the summer of 2020", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119161R (15 December 2021); https://doi.org/10.1117/12.2600470

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