Granulometric Composition of Settled Aerosol Material and Ratio of Phenolic Compounds in Different-Age Needles

• Published in: Atmospheric and oceanic optics Vol. 34; no. 3; pp. 222 - 228
• Main Authors: Tentukov, M. P., Mikhailov, V. I., Timushev, D. A., Simonenkov, D. V., Belan, B. D.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-05-2021; Springer Nature B.V
• Subjects: Aerodynamics; Aerosols; Age; Boundary layers; Composition; Efflorescence; Granulometry; Hydrosoles; Lasers; Morphometry; Optical Devices; Optics; Optics of Clusters; Phenols; Photonics; Physics; Physics and Astronomy; Plant cover; Plant species; Spectrometry; Turbulent boundary layer; Washout; phenolic compounds; dynamic light scattering; secondary organic aerosols; efflorescence; needle contamination; submicron aerosols
• ISSN: 1024-8560; 2070-0393
• DOI: 10.1134/S1024856021030167

We present the results from laser granulometry of a nanosized fraction of aerosol substance and from UV spectrometry of water washouts from different-age needles in four plant species. It is estimated how the hydrothermal conditions influence the time variations in morphometric indices of needles and contamination of their surfaces by phenolic compounds in the composition of secondary organic aerosols. We discuss how secondary organic aerosols are generated on the surfaces of different-age needles during efflorescence of phenolic compounds and their subsequent entry into the forest canopy during turbulent separation of the boundary layer from the leaf surface.