Химия в интересах устойчивого развития 24 (2016) 467471 UDC 551.546.26.543.51 DOI: 10.15372/KhUR20160406 Isotope Composition of Pyrogenic Carbon of Various Origins D. A. KALASHNIKOVA1, A. N. MARKELOVA2, V. N. MELKOV2 and G. V. SIMONOVA2,3 1Tomsk Polytechnic University, Tomsk, Russia 2Institute of Monitoring of Climatic and Ecological System, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia E-mail: galina_simonova@inbox.ru 3Tomsk State University, Tomsk, Russia Abstract In the work, the isotopic composition of pyrogenic carbon samples of various origins was studied. <...> The dependence of this composition on the isotopic composition of the source carbon source was determined using isotope ratio a mass spectrometer DELTA V Advantage (Thermo Fisher Scientific/USAGermany) in the combination with an elemental analyzer Flash-2000. <...> The studies showed that pyrogenic carbon produced after burning kerosene and its derivatives (δ13С = 30 ) had the lightest isotope composition. <...> The carbon isotope composition of dust particles sampled from the snowpack in different locations in Tomsk showed deviations from the δ13С = 28.8 to δ13С = 21.9 . <...> Key words: isotope composition of carbon, pyrogenic carbon, soot, black carbon (BC), isotope mass spectrometry, 14С, snowpack 467 INTRODUCTION Forest fires, auto transport, enterprises of industry and housing and communal services are the sources of emissions into the atmosphere of soot that is the product of incomplete combustion of hydrocarbon fuel and biomass. <...> The main component of soot is pyrogenic or black carbon (BC). <...> According to numerous studies precisely it has a significant impact on population health and climate; therefore, problems of monitoring and control of black carbon in the components in the environment components attract attention of ecologists and climatologists of the entire world [1]. <...> One of these problems is the determination of the sources of BC, typical for this or that territory. <...> Two of them (12C and 13C) are stable, the others are radioactive. <...> It is optimal to use stable isotope ratio and the content of BC in compared samples of long-lived radioactive isotope of carbon 14C to indicate the origin of BC. <...> By the activity of 14С in BC samples, one can determine, whether it is the combustion product of fossil fuels. <...> The ratios of stable isotopes of organic substances carbon forming <...>