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

                                210Pb          7Be         10Be
                          -----------  -----------  -----------
  Burden, g                  199.9766       3.4614      15.7059

  Residence time, d            7.1822      29.1891      30.6114

  Sources, g d-1              28.6151       0.1134       0.1620

  Sinks, g d-1                27.8601       0.1636       0.5131
    Dry deposition             3.6102       0.0081       0.0354
    Wet deposition
      Stratiform              19.4252       0.0953       0.4123
      Convective               4.8079       0.0152       0.0654
    Radioactive decay       0.0168217    0.0450576   0.00000002

  Sources - Sinks, g d-1     0.755045    -0.050230    -0.351057

  Accumulation Term
    Initial mass, g          187.4161       3.1924      14.2136
    Final mass, g            213.1686       3.5341      15.7430
    Difference, g          25.7525635    0.3416665    1.5294647