Table 1. Annual Average Global Budgets of 210Pb and 7Be in the Troposphere+Stratosphere for 2013
                               210Pb         7Be
  Burden, g                   272.112      20.2555
  Sources, g d-1              32.1962     0.403345
    stratosphere             0.130611     0.270660
    troposphere               32.0656     0.132685
  Sinks, g d-1                32.2891     0.403730
    dry deposition            3.90206    0.0102795
    wet deposition      
      stratiform              19.9163     0.103831
      convective              8.44786    0.0260760
    radioactive decay       0.0228923     0.263544
 
  Accumulation Term     
    Initial mass, g           239.323      20.4552
    Final   mass, g           238.310      20.4548
    Difference, g            -1.01282 -0.000404358