Table 1. Annual Average Global Budgets of 210Pb and 7Be in the Troposphere+Stratosphere for 2013
                               210Pb         7Be
  Burden, g                   272.233      20.2500
  Sources, g d-1              32.1952     0.403137
    stratosphere             0.129040     0.270450
    troposphere               32.0661     0.132687
  Sinks, g d-1                32.2896     0.403519
    dry deposition            3.90212    0.0102709
    wet deposition      
      stratiform              19.9166     0.103733
      convective              8.44793    0.0260514
    radioactive decay       0.0229026     0.263464
 
  Accumulation Term     
    Initial mass, g           239.437      20.4478
    Final   mass, g           238.417      20.4474
    Difference, g            -1.01979 -0.000396729