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25 November 2014Altitudinal distribution of aldehydes and their contribution into organic atmospheric aerosol through photonucleation of biogenic compounds over forests in west Siberia
Anastasiya A. Maskaeva,1,2 Tatyana A. Maksimova,1 Sergei N. Dubtsov,1 Galina G. Dultseva1,3
1Institute of Chemical Kinetics and Combustion (Russian Federation) 2Novosibirsk State Technological Univ. (Russian Federation) 3Novosibirsk State Univ. (Russian Federation)
Chemical kinetic model describing the mechanism of the formation of aldehydes and the nuclei of the solid phase in the oxidation of biogenic isoprene was built on the basis of airborne measurements of aldehyde concentrations over the forests of West Siberia. It is demonstrated that the high formaldehyde concentrations at an altitude of 4 km and above are due to the photooxidation of hydrocarbons during the vertical transport from the surface. The contribution of aldehyde photonucleation into the formation of organic atmospheric aerosol is evaluated.
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Anastasiya A. Maskaeva, Tatyana A. Maksimova, Sergei N. Dubtsov, Galina G. Dultseva, "Altitudinal distribution of aldehydes and their contribution into organic atmospheric aerosol through photonucleation of biogenic compounds over forests in west Siberia," Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 929243 (25 November 2014); https://doi.org/10.1117/12.2075564