Atmospheric concentration of N2O from a) 1977-1988 and b) the last 200 years. Houghton, J.T., G.J. Jenkins, J.J. Ephraums, eds,
1990: 1990 Intergovernment Panel on Climate Change, Cambridge University Press.
Estimated sources and sinks of nitrous oxide. Adapted from table 1.4, p 26, of
Houghton, J.T., G.J. Jenkins, J.J. Ephraums, eds, 1990: 1990 Intergovernment Panel on Climate Change, Cambridge University Press.
Nitrogen fertilizer consumption. EPA.
Annual vs emissions of NOx and SO2 from 1900-1980. EPA.
Estimated sources of Nitrogen Oxides. Adapted from IPCC, 1992.
Nitrogen cycle. J. D. Butler, Air Pollution Chemistry, 1979
Estimated annual global sulfur emissions from 1860-1980. Source unknown.
Estimated sources of short-lived sulfur gases. Adapted from IPCC, 1992.
Simulated concentrationsof sulfate at 900hPa. IPCC, 1990
The sulfur cycle in thebiosphere. J. D. Butler, Air Pollution Chemistry, 1979
Exchange of gases
between ecosystem components and the atmosphere. Global Change
International Geosphere - Biosphere Programme, Report No. 12, 1990
Biogeochemical Processes. U.S. Global Change Research Program.
Formation/destruction of tropospheric ozone. Mckee, David J. 1994: Tropospheric
Ozone: Human Health and Agricultural Impacts. Lewis Publications, Boca Raton. 333 pp.
Impacts of high levels of ozone. Mckee, David J. 1994: Tropospheric
Ozone: Human Health and Agricultural Impacts. Lewis Publications, Boca Raton. 333 pp.
Seasonal variation of surface ozone. Houghton, J.T., G.J. Jenkins,
J.J. Ephraums, eds, 1990: 1990 Intergovernment Panel on Climate Change, Cambridge University Press.
Summary of O3 concentrations predicted to cause 10 and 30% yield losses. Adapted from McKee, D. I., Tropospheric Ozone: Lewis Publications, 1994.
Examples of plant yield loss induced by ambient ozone level in various states.
Predicted relative soybean yield loss for 1987. McKee, David J., 1994: Tropospheric Ozone.
Figure 7, p 193. Reprinted with permission from CRC Press, Inc.
Predicted relative wheat yield loss for 1987.
McKee, David J., 1994: Tropospheric Ozone. Figure 7, p 193. Reprinted with permission from CRC Press, Inc.
Plant yeild loss due to tropospheric ozone. Adapted from McKee,
D. I., Tropospheric Ozone: Lewis Publications, 1994.
Summary of ozone concentrations predicted to cause 10 - 30% yield losses and summary of yield losses
predicted to occur at 7-h seasonal mean ozone concentrations of 0.04 and 0.06 ppm. McKee, David J., 1994: Tropospheric Ozone.
