Hydrocarbons, atmosphere biogenic

Typically, several aspects need to be considered for application of quantum chemical calculations and kinetic methods to the atmospheric biogenic hydrocarbons ... 

Mann, C. O. (1981). EPA data systems used to report anthropogenic hydrocarbon emission data. In Atmospheric Biogenic Hydrocarbons (J. J. Bufalini and R. R. Arnts, eds.), Vol. 1, Emissions. pp. 149-178. Ann Arbor Science Publ., Ann Arbor, Michigan. 

Zimmerman, P., Greenberg, J., and Westberg, C. (1988) Measurements of atmospheric hydrocarbons and biogenic emission fluxes in the Amazon boundary layer, J. Geophys. Res., 93, 1407-1416. 

Grosjean D, EL Williams, E Grosjean, JM Andino, JH Seinfeld (1993c) Atmospheric oxidation of biogenic hydrocarbons reaction of ozone with 3-pinene, D-limonene, and rra -caryophyllene. Environ Sci Technol 27 2754-2758. 

Fall, R Biogenic Emissions of Volatile Organic Compounds from Higher Plants, in Reactive Hydrocarbons in the Atmosphere (C. N. Hewitt, Ed.), Chap. 2, Academic Press, San Diego, 1999. 

Grosjean, D., E. L. Williams, II, E. Grosjean, J. M. Andino, and J. H. Seinfeld, Atmospheric Oxidation of Biogenic Hydrocarbons Reaction of Ozone with /J-Pinene, d-Limonene, and trans-Caryophyllene, Em iron. Sci. Techriol., 27, 2754-2758 (1993a). 

Griffin R.J., D. R. Cocker III, J. H. Seinfeld and D. Dabdub (1999) Estimate of global atmospheric organic aerosol from oxidation of biogenic hydrocarbons,... 

Barr et al. (2003) performed an analysis of the impact of phytogenic aerosol (PhA) which is defined as forming mainly due to monoterpene oxidation (primarily, a- and /3-pinenes), on the radiative regime of the ABL over the forest in the eastern part of Canada. In the forest ecosystem the level of emissions to the atmosphere of biogenic hydrocarbons is moderate, with the concentration of a- and /3-pinenes constituting about 1.6 ppb. NMHC oxidation resulted in the formation of PhA at a number density of particles of about 5 108 cm 3. For a given concentration and size distribution of aerosol, its impact on the short-wave radiation transfer in the ABL was assessed. 

To study the impact of biogenic sources of hydrocarbons on gas phase photochemistry in the atmosphere, new isotopic ratio-based techniques are required. For example, ultra-high volume collection of aldehydes with separation of formaldehyde and acetaldehyde (or their derivatives), and subsequent 3q an[Pg.278]

Theoretical Investigation of Atmospheric Oxidation of Biogenic Hydrocarbons A Critical Review... 

Oxidation of hydrocarbons has long been considered as a fundamental problem to atmospheric chemists, both from experimental and theoretical points of view, because of the inherent complexity. The reaction kinetics and mechanism of atmospheric hydrocarbons have been the focuses of numerous researches in both experimental and theoretical aspects. Although advances have been made in elucidation of the VOC oxidation mechanisms, large uncertainty and tremendous numbers of unexplored reactions still remain. Several review articles on the atmospheric degeneration of VOCs have been published [4,11-14]. In this review, recent advances in the application of theoretical methods to the atmospheric oxidation of biogenic hydrocarbons are discussed. We will introduce the backgrounds on the quantum chemical calculations and kinetic rate theories, recent progress on theoretical studies of isoprene and a-, y3-pinenes, and studies on other monoter-penes and sesquiterpenes. 

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