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Figure 2


Fig. 2. Gas concentrations. (a) N2, O2, CO2, and CH4. (b) Trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12). (c) Chlorodifluoromethane (HCFC-21) and chlorofluoromethane (HCFC-22). Experimental data in symbols; simulated results in solid lines.