Table 2. Annual Average Global Budgets of 210Pb, 7Be, and 10Be
         in the Troposphere for 2020

                                210Pb          7Be         10Be
                          -----------  -----------  -----------
  Burden, g                  181.3864       3.1737      14.3458

  Residence time, d            6.3051      23.2243      24.5266

  Sources, g d-1              28.5284       0.1131       0.1616

  Sinks, g d-1                28.7832       0.1780       0.5849
    Dry deposition             3.9390       0.0091       0.0396
    Wet deposition
      Stratiform              17.8768       0.1047       0.4461
      Convective               6.9522       0.0229       0.0992
    Radioactive decay       0.0152586    0.0413150   0.00000002

  Sources - Sinks, g d-1    -0.254811    -0.064838    -0.423295

  Accumulation Term
    Initial mass, g          187.3234       3.1827      14.1612
    Final mass, g            186.8943       3.1275      13.7047
    Difference, g          -0.4291687   -0.0552015   -0.4564734