Monitoring of atmospheric deposition of Zn, Cu, Cd, and Pb within the area of the Great Vasyugan mire
A.A. Sinyutkina1, Yu.A. Kharanzhevskaya1,2
1Siberian Research Institute of Agriculture and Peatof the Siberian Federal Scientific Center of Agro-Bio Technologies of the Russian Academy of Sciences, Tomsk, Russia
2National Research Tomsk State University, Tomsk, Russia
Keywords: атмосфера, тяжелые металлы, природный пожар, загрязнение атмосферы, Западная Сибирь, atmosphere, heavy metals, wild fire, atmosphere pollution, West Siberia
Abstract
The article presents the assessment result of the pyrogenic factor contribution to atmospheric pollution in the background territories of the Tomsk region based on the analysis of heavy metal (Zn, Pb, Cu, and Cd) atmospheric deposition within the Bakchar bog (the north-eastern part of the Great Vasyugan mire). The analysis of atmospheric depositions of Cu, Pb, Zn, and Cd was carried out using the method of passive dust deposition by the content of particles per 1 m2 during 2018-2019. Data analysis showed an excess of Zn in atmospheric depositions that persists for three years after a fire in a drained mire during both summer and winter observation periods with a maximum value of 3.63 mg/m2 per month in 2018. The impact of the fire on Cd and Pb content was maintained for two years after the fire. The Cu content in atmospheric depositions is not affected by the pyrogenic factor. The analysis of seasonal dynamics showed that the content of Zn, Cd, and Pb in the composition of atmospheric depositions was influenced by wild fires that cause the transfer of pollutants both on the local and regional scales.
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