Table 2. Annual Average Global Budgets of 210Pb and 7Be in the Troposphere for 2016
                               210Pb         7Be
  Burden, g                   217.941      3.56036
  Residence time, days        6.71192      24.6000
  Sources, g d-1        
    from stratosphere        0.224400    0.0543652
    within troposphere        32.2206     0.136303
  Sinks, g d-1          
    dry deposition            3.94971   0.00955045
    wet deposition            28.4770     0.134776
      stratiform              20.0147     0.108970
      convective              8.46232    0.0258063
    radioactive decay       0.0183407    0.0463413
 
Accumulation Term       
  Initial mass, g             213.696      8.85869
  Final   mass, g             213.433      8.86029
  Difference, g             -0.263443   0.00159740