Table 2. Annual Average Global Budgets of 210Pb and 7Be in the GEOS-5 Troposphere for 2013
                               210Pb         7Be
  Burden, g                   215.189      3.32609
  Residence time, days        6.10799      22.3825
  Sources, g d-1        
    from stratosphere         3.06947    0.0586176
    within troposphere        32.1767     0.132914
  Sinks, g d-1          
    dry deposition            5.76866    0.0122814
    wet deposition            29.4594     0.135933
      stratiform              22.5822     0.122146
      convective              6.87717    0.0137864
    radioactive decay       0.0181763    0.0433179