******************************************************************************* *** Atmospheric CO2 concentrations at Deuselbach, Germany (ppmv) *** *** *** *** Source: W. Fricke *** *** M. Wallasch *** *** Umweltbundesamt *** *** Frankfurter Str. 135 *** *** 63067 Offenbach/Main, Germany *** *** *** *** September 1994 *** ******************************************************************************* Year Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Ann. 1972 347.73 350.26 342.43 336.82 336.24 335.52 335.11 334.37 335.66 341.45 347.83 346.39 340.82 1973 349.17 343.90 345.04 341.78 337.04 333.31 333.39 333.13 335.05 343.10 342.79 347.00 340.39 1974 343.28 345.85 352.70 343.29 337.46 335.03 333.15 332.31 330.44 339.42 342.82 341.62 339.78 1975 342.62 344.78 345.97 342.05 338.31 334.82 329.83 333.83 331.51 340.97 347.51 347.24 339.95 1976 342.97 352.15 345.80 343.74 337.46 334.77 339.32 330.85 336.13 345.04 348.87 350.38 342.29 1977 346.45 343.40 344.50 342.57 342.61 340.68 335.31 341.41 338.51 348.04 344.16 351.76 343.28 1978 347.13 355.83 344.75 347.54 342.14 336.13 335.98 332.66 335.16 345.16 355.39 349.88 343.98 1979 355.04 357.85 349.92 349.63 345.32 340.19 339.77 335.54 337.00 346.87 348.79 348.39 346.19 1980 354.25 352.58 355.84 349.00 345.02 341.20 337.59 340.58 337.55 344.46 351.86 349.88 346.65 1981 353.05 356.86 349.43 353.00 340.71 337.07 340.28 340.66 338.91 346.40 350.84 358.45 347.14 1982 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 1983 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 1984 352.54 360.71 359.40 357.74 352.09 345.28 343.94 345.06 345.87 350.63 360.03 357.46 352.56 1985 364.48 357.82 360.82 353.89 351.45 344.86 337.50 335.34 338.49 348.98 357.03 356.32 350.58 1986 352.62 363.11 365.66 361.50 358.44 349.44 347.26 348.49 349.66 359.61 358.43 355.78 355.83 1987 368.52 366.74 358.66 360.03 358.50 354.49 363.52 354.49 354.01 360.39 368.49 362.98 360.90 1988 358.42 360.35 360.26 360.94 358.56 358.80 356.20 355.57 354.41 363.68 365.75 365.45 359.87 1989 371.00 369.36 364.11 365.88 359.92 359.81 360.75 358.33 359.10 363.87 365.46 367.52 363.76 1990 370.41 365.58 367.20 361.67 358.76 355.38 357.43 357.29 358.32 363.88 -99.99 -99.99 -99.99 1991 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 379.39 371.30 -99.99 1992 368.00 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99