Table 1. Annual Average Global Budgets of 210Pb and 7Be in the Troposphere+Stratosphere for 2013
                               210Pb         7Be
  Burden, g                   278.324      20.2897
  Sources, g d-1              32.3088     0.403137
    stratosphere             0.130566     0.270450
    troposphere               32.1782     0.132687
  Sinks, g d-1                32.3925     0.403494
    dry deposition            3.30795   0.00932994
    wet deposition      
      stratiform              20.5649     0.104071
      convective              8.49618    0.0261127
    radioactive decay       0.0234151     0.263980
 
  Accumulation Term     
    Initial mass, g           245.286      20.4864
    Final   mass, g           244.291      20.4860
    Difference, g           -0.994873 -0.000398636