Monitoring of carbon isotope composition of snow cover for Tomsk region

International Conference and Early Career Scientists School on Environmental Observations, Modelling and Information Systems

生态环境科学;计算机科学

Akulov, P.A.^1 ; Volkov, Y.V.^1,3 ; Kalashnikova, D.A.^1,3 ; Markelova, A.N.^1 ; Melkov, V.N.^1 ; Simonova, G.V.^1,2 ; Tartakovskiy, V.A.^1

Institute of Monitoring of Climatic and Ecological Systems, SB PAS, Akademicheskiy av. 10/3, Tomsk

634055, Russia^1

National Research Tomsk State University, Lenina av. 36, Tomsk

634050, Russia^2

National Research Tomsk Polytechnic University, Lenina av. 30, Tomsk

634050, Russia^3

关键词: Carbon content;    Carbon isotope composition;    Dust samples;    Heating system;    Human impact;    Isotope compositions;    Main objects;    Total carbon;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/48/1/012029/pdf
DOI  :  10.1088/1755-1315/48/1/012029

来源: IOP

【 摘 要 】

This article shows the potential of using δ13C values of pollutants in snow pack to study the human impact on the environment of Tomsk and its surroundings. We believe that it is possible to use a relation between the isotope compositions of a fuel and black carbon for establishing the origin of the latter. The main object of our investigation was dust accumulated by the snow pack in the winter of 2015-2016. The study of dust samples included the following steps: determination of the total carbon content in snow pack samples of Tomsk and its surroundings, extraction of black carbon from the dust, as well as the determination of δ13C values of the total and black carbon accumulated in the snow pack. A snow survey was carried out on the 26th of January and on the 18th of March. The relative carbon content in the dust samples was determined by using an EA Flash 2000 element analyzer. It varied from 3 to 24%. The maximum carbon content was in the dust samples from areas of cottage building with individual heating systems. The δ13C values of the total and black carbon were determined by using a DELTA V Advantage isotope mass spectrometer (TomTsKP SB RAS). The isotope composition of black carbon corresponded to that of the original fuel. This fact allowed identifying the origin of black carbon in some areas of Tomsk.