Organic compounds, atmosphere

HO oxidation of CO is much faster than the reaction with methane, resulting in a mean CO lifetime of about two months, but considerably slower than reaction with the majority of the nonmethane hydrocarbons. Table I gives representative removal rates for a number of atmospheric organic compounds their atmospheric lifetimes are the reciprocals of these removal rates (see Equation E4, below). The reaction sequence R31, R13, R14, R15 constitutes one of many tropospheric chain reactions that use CO or hydrocarbons as fuel in the production of tropospheric ozone. These four reactions (if not diverted through other pathways) produce the net reaction... 

Dlugokencky, E. J., and C. J. Howard, Studies of NO, Radical Reactions with Some Atmospheric Organic Compounds at Low Pressures, J. Phys. Chem., 93, 1091-1096 (1989). 

Febo, A., C. Perrino, and I. Allegrini. 1999. Selective gas and particle sampling diffusion denuders. In Lane, D.A., Ed., Gas and Particle Measurements of Atmospheric Organic Compounds. Gordon and Breach Science Publishers, Amsterdam, pp. 127-175... 

Lane, D.A., 1999. Gas and Particle Phase Partition Measurements of Atmospheric Organic Compounds. Gordon and Breach Publishers, in press. 

Ligocki, M.P. and J.F. Pankow. 1989. Measurement of the gas/particle distribution of atmospheric organic compounds. Environ. Sci. Technol. 23 75-83. 

Grgic, I., Dovzan, A., Bercic, G. and Hudnik, V (1998) The effect of atmospheric organic compounds on the Fe-catalysed S1 7 autoxidation in aqueous solution./. Atmos. Chem., 29,315-337. 

Several classes of atmospheric organic compounds are of interest in deposition studies. Instrumentation for these species will be briefly reviewed. 

Ichibashi M. 1979. [The real status of air pollution. 2. Atmospheric organic compounds in Kawasaki]. Kanagawa-ken Taiki Osen Chosa Kenkyu Hokoku 21 131-143. (Japanese). 

We clearly do not know the major sources of specific atmospheric organic compounds, be these sources continental, oceanic or atmospheric de novo synthesis of new structures. Ketseridis et al. (1976) undertook a fairly detailed study of the organic constituents of atmospheric particles in European and Atlantic air masses. They found a chemically complex mixture of fatty acids, phenols, amines, and aliphatic and aromatic hydrocarbons in their samples. They noted that ratios of the concentrations of some of the major groups were fairly constant for all the locations studied. They suggested either a common origin for all the substances or that the atmospheric... 

D.A. Lane, Gas and Particle Phase Measurements of Atmospheric Organic Compounds, ed. D.A. Lane, Volume 2 in Advances in Environmental, Industrial and Process Control Technologies, ed. T. Vo-Dinh, Gordon and Breach, New York, 1999, 404 pp. 

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