More references on CO and CH4 chemistry in the troposphere:

M. Allen, Y.L. Yung and J.W. Waters, "Vertical Transport and Photochemistry in the Terrestrial Mesosphere and Lower Thermosphere (50-120 km)", J. Geophys. Res., 86, 3617, 1981.

M. Allen, J.I. Lunine and Y.L. Yung, "The vertical Distribution of Ozone in Mesosphere and Lower Thermosphere", J. Geophys. Res., 89, 4841, 1984.

R.J. Cicerone, "How has the Atmospheric Concentration of CO changed", The Changing Atmosphere, Edited by F.S. Rowland and I.S.A. Isaksen (Wiley), 49-61, 1988.

P.J. Crutzen and A.T. Gidel, "A Two-Dimensional Photo-Chemical Model of the Atmosphere: 2. The Tropospheric Budgets of the Antropogenic Chlorocarbons, CO, CH4, CH3Cl, and the Effects of various NOx Sources on Tropospheric Ozone", J. Geophys. Res., 88, 6641-661, 1983.

P.J. Crutzen, "Tropospheric Ozone: An overview", Tropospheric Ozone: Regional and Global Scale Interactions, Edited by I.S.A. Isaksen (D. Reidel, Boston), 3-11, 1988.

W.B. DeMore, S.P. Sander, D.M. Golden, M.J. Molina, R.F. Hampson, M.J. Kurylo, C.J. Howard, A.R. Ravishankara, "Chemical Kinetics and Photochemical Data for use in Stratospheric Modeling", JPL NASA Jet Propulsion Laboratory, 90-1, 47-48, 1990.

E.V. Dvoryashina, V.I. Dianov-Klokov and L.N. Yurganov, "Variations of the Content of Carbon Monoxide in the Atmosphere in the Period from 1970 to 1982", Izvestiya, 20, 27-33, 1984.

D.H. Ehhalt, AThe atmospheric Cycle of Methane", Tellus, 26, 1974.

D.H. Ehhalt, "How Has the Atmospheric Concentration of Methane Changed?", The Changing Atmosphere, Edited by F.S. Rowland and .S.A. Isaksen (Wiley), 25-32, 1988.

R. M. Goody and Y.L. Yung, Atmospheric Radiation, Theoretical Basis, OUP, 1989.

T.E. Graedel and J.E. McRae, "On the Possible Increase in the Concentration of Atmospheric Methane and Carbon Monoxide during the Last Decade", Geophys. Res. Lett., 7, 977-979, 1980.

P.L. Hanst, J.W. Spence and O. Edney, "Carbon Monoxide Production in Oxidation of Organic Molecules in the Air", Atmos. Env., 14, 1220-1226, 1980.

M.A.K. Khalil and R.A. Rasmussen, "Sources, Sinks and Seasonal Cycles of Atmospheric Methane", J. Geophys. Res., 88, 5131-5144, 1983.

M.A.K. Khalil and R.A. Rasmussen, "Carbon Monoxide in the Earth's Atmosphere: Increasing Trend", Science, 224, 54-56, 1984.

M.A.K. Khalil and R.A. Rasmussen, "Global Decrease in Atmospheric Carbon Monoxide Concentration", Nature, 370, 629-641, 1994.

M.A.K. Khalil and M.J. Shearer, "Sources of Methane: An Overview", Atmospheric Methane, Sources, Sinks and Role in Global Change, Edited by M.A.K. Khalil (Springer-Verlag), 1993.

M.A.K. Khalil, M.J. Shearer and R.A. Rasmussen, "Methane sinks and distribution", Atmospheric Methane, Sources, Sinks and Role in Global Change, Edited by M.A.K. Khalil (Springer-Verlag), 1993.

H. Levy, "Normal Atmosphere: Large Radical and Formaldehyde Predicted", Science, 173, 141-143, 1971.

J.A. Logan, M.J. Prather, F.C Wofsy and M.B. McElroy, "Tropospheric Chemistry: A Global Perspective", J. Geophys. Res., 86, 7210-7254, 1981.

R.E. Novelli, K.A. Masarie, P.P. Tans and P.M. Lang, "Recent Changes in Atmospheric Carbon Monoxide", Science, 263, 1587-1590, 1994.

J.P. Peixoto and A.H. Oort, "Chapter 2: Nature of the Problem", Physics of Climate, AIP, 8-26, 1992.

J. Pressman and P. Warneck, "The Stratosphere as a Chemical Sink for Carbon Monoxide", J. Atmos. Sci, 27, 155-163, 1970.

D. Raynaud and J. Chappellaz, "The Record of Atmospheric Methane", Atmospheric Methane, Sources, Sinks and Role in Global Change, Edited by M.A.K. Khalil (Springer-Verlag), 1993.

H.G. Reichle et al., "Middle and Upper Tropospheric Carbon Monoxide Mixing Ratios as Measured by Satellite-Borne Remote Sensor During November 1981", J. Geophys. Res., 91, 10865-10887, 1986.

H.G. Reichle et al., "The Distribution of Tropospheric Carbon Monoxide During Early October 1984", J. Geophys. Res., 95, 9845-9856, 1990.

M.L. Salby, Fundamentals of Atmospheric Physics, Academic Press, 1996.

W. Seiler and R. Conrad, "Contribution of Tropical Systems to the Global Budget of Trace Gases, especially CH4, H2, CO and N2O", The Geophysiology of Amazionia, Edited by R.E. Dickenson (Wiley, New-York), 133-160, 1987.

W. Seiler and U. Schmidt, "Dissolved Nonconservative gases in seawater", The Sea, Edited by P. Goldberg (Wiley New-York), 5, 219-243, 1974a.

W. Seiler and U. Schmidt, "New Aspects on CO and H2 Cycles in the Atmosphere", Proc. Int. Conf. Structure, Composition, General Circulation Upper Lower Atmos., Melbourne, 1, 192-222, 1974b.

W. Seiler H. Giehl, E.G. Brunke and E.A Halliday, " The Seasonality of Co Concentration in the Southern Hemisphere", Tellus, 36B, 219-231, 1984.

A.M. Thompson, M.A. Huntley and R.W. Stewart, "Perturbations of Tropospheric Oxidants, 1985-2035: 1. Calculations of Ozone and OH in Chemically Coherent Regions", J. Geophys. Res., 95-9, 829-844, 1990.

US Standard Atmosphere, Publication NOAA-S/T76-1562, Washington DC: US Government Printing Office, 1976.

J. Wang, J. Gille, P. Bailey, M. Smith, L. Liwen Pan, D. Edwards, L. Rokke, J.R. Drummond, G.R. Davis, H. Reichle, Measurement of Pollution in The Troposphere (MOPITT) Data Validation Plan, 1996.

P. Warneck, "Chapter 4: Chemistry of the Troposphere: the Methane Oxidation Cycle", Chemistry of the Natural Atmosphere, San Diego Academic Press, 131-175, 1988.

P. Wayne, "Chapter 5: The Earth's Troposphere", Chemistry of Atmospheres, An Introduction to the Chemistry of Atmospheres of Earth, the Planets and their Satellites, Oxford Clarendon Press, 209-275, 1991.

D.J. Wuebbles and J.S. Tamaresis, "The Role of Methane in the Global Environment", Atmospheric Methane: Sources, Sinks and Role in Global Change, Edited by M.A.K. Khalil (Springer-Verlag), 469-513, 1993.

P.R. Zimmerman, R.B. Chatfield, J. Fishman, P.J. Crutzen and P.L. Hanst, "Estimates of the Production of CO and H2 from the Oxidation of Hydrocarbon Emissions from Vegetation", Geophys. Res. Lett., 5, 679-682, 1978.