Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

Snowpack exhibits properties that make it a unique natural archive of airborne pollution. The data on insoluble particles in the Ob River catchment (Western Siberia) snowpack are limited. Insoluble particles in the snowpack of Western Siberia were studied at 36 sites on a 2800 km submeridional profi...

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Bibliographic Details
Published inAtmosphere Vol. 11; no. 11; p. 1184
Main Authors Shevchenko, Vladimir P., Vorobyev, Sergey N., Krickov, Ivan V., Boev, Andrey G., Lim, Artyom G., Novigatsky, Alexander N., Starodymova, Dina P., Pokrovsky, Oleg S.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.11.2020
Subjects
Aerosols
Air pollution
Anthropogenic factors
Archives & records
biogenic particles
Black carbon
Catchment area
Cities
Hydrocarbons
Indoor air pollution
insoluble particles
Laboratories
lithogenic particles
Particle composition
Particulate emissions
Particulate matter
Pollutants
River basins
River catchments
Rivers
Satellites
Scanning electron microscopy
scanning microscopy
Snow
Snow cover
Snowpack
Suspended particulate matter
West Siberia
Siberia
Russia
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Summary:Snowpack exhibits properties that make it a unique natural archive of airborne pollution. The data on insoluble particles in the Ob River catchment (Western Siberia) snowpack are limited. Insoluble particles in the snowpack of Western Siberia were studied at 36 sites on a 2800 km submeridional profile from the city of Barnaul to Salekhard in February 2020. Snow samples were collected over the full depth of the snow core, from the surface of the snow cover to the boundary with soil, except for the lower 1–2 cm. After the filtration of melted snow through a 0.45-µm membrane, the particle composition was studied using a scanning electron microscope with an energy microprobe. In the background areas, the concentration of insoluble particles in the snow was below 2 mg/L. Significantly higher particle concentrations were encountered near cities and hydrocarbon production areas. Particulate matter in snow mainly consists of biogenic and lithogenic particles mixed with anthropogenic particles (ash and black carbon aggregates). The proportion of anthropogenic particles increases near cities and areas of active hydrocarbon production.
ISSN:2073-4433
2073-4433
DOI:10.3390/atmos11111184