Abstract
The volatile organic compounds (VOCs) emitted from vegetation into the atmosphere play an important role in atmospheric chemistry and participate in the formation and growth of aerosol particles that affect the atmospheric radiation balance and the earth’s climate. A number of VOCs, such as isoprene, monoterpene, methylvinylketone, and methacrolein, whose surface concentrations were measured between Moscow and Vladivostok in the course of the Transcontinental Observations into the Chemistry of the Atmosphere (TROICA-12) experiment in July–August 2008, are considered. For the first time in Russia, a PTR-MS proton mass-spectrometer was used to measure the VOC concentrations. The continuous series of VOC concentrations in the atmosphere over the Trans-Siberian Railway were obtained, and the characteristic features of their variations were determined. The spatial distribution of the concentrations of biogenic VOC was compared with a map of Russia’s forests. It was found that the maximum concentrations of isoprene between Moscow and Vladivostok correspond to the zones of broad-leaved forests in the Far East and Primorskii Krai, and the maximum concentrations of monoterpene correspond to coniferous forests in Siberia. The obvious correlation between the concentrations of isoprene and the total concentration of methylvinylketone and methacrolein was revealed.
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Original Russian Text © I.I. Timkovsky, N.F. Elanskii, A.I. Skorokhod, R.A. Shumskii, 2010, published in Izvestiya AN. Fizika Atmosfery i Okeana, 2010, Vol. 46, No. 3, pp. 347–356.
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Timkovsky, I.I., Elanskii, N.F., Skorokhod, A.I. et al. Studying of biogenic volatile organic compounds in the atmosphere over Russia. Izv. Atmos. Ocean. Phys. 46, 319–327 (2010). https://doi.org/10.1134/S0001433810030059
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DOI: https://doi.org/10.1134/S0001433810030059