Table 2. Annual Average Global Budgets of 210Pb and 7Be in the GEOS-5 Troposphere for 2013
                               210Pb         7Be
  Burden, g                   212.655      3.33530
  Residence time, days        6.60214      23.3408
  Sources, g d-1        
    from stratosphere        0.228550    0.0530463
    within troposphere        31.9528     0.132914
  Sinks, g d-1          
    dry deposition            3.49478   0.00698390
    wet deposition            28.6686     0.135539
      stratiform              22.0420     0.122895
      convective              6.62657    0.0126441
    radioactive decay       0.0179612    0.0434378