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Figure 1 - Infrared radiation window.
Source unknown.
Figure 2 - Double danger from CFCs.
EPRI Journal, September, 1989.
Figure 3 - Atmospheric concentrations
and trends of halocarbons. Adapted from IPCC, 1992, 38.
Figure 4 - CFC-11 and CFC-12
concentrations from 1978-1992. Dutton, E., NOAA (published in
Nature by Elkins et al, 1992).
Figure 5 - Annual grouwth rates
of CFC-11 and CFC-12 from 1978-1992. Elkins, et al, 1992: Nature.
Figure 6 - Calculated UV spectrum of solar energy entering the atmosphere... (after C and E News. Nov 24,
1986)
Figure 7 - Change in biologically damaging
UV flux with change in ozone concentration...(after C and E News, Nov 24,
1986. )
Figure 8 - Spectral distribution of ozone absorption and UV
increase. (Adapted from Kerr and McElroy, 1993: Science, Vol 262, 1032.)
Figure 9 - Spectral distribution of average daily total UV-B solar
energy flux. (adapted from Kerr and
McElroy, Science, 262, 1034, 1993)
Figure 10 -
Regional average ozone depletion. Science. Vol.
256, Apr. 17 ,1992.
Figure 11 - Measured (1960-1990) and
projected atmospheric concentrations of chlorine. (After C & E News,
May 24, 1993)
Figure 12 - Summary. Takle, G.S.,
1995.
Related Class Images
Biological
sensitivity and solar energy intensity as a function of wavelength.
Source unknown.
Editorial cartoon.
Rowland, 1989: American Scientist, 77, 36. Permission granted Sigma Xi,
The Scientific Research Society.
CFC timeline.
Earthquest, UCAR.
Total Ozone for October 2, 1994.