Table 2. Annual Average Global Budgets of 210Pb and 7Be in the Troposphere for 2016
                               210Pb         7Be
  Burden, g                   223.054      3.56047
  Residence time, days        6.84745      24.6829
  Sources, g d-1        
    from stratosphere        0.216003    0.0538883
    within troposphere        32.3354     0.136303
  Sinks, g d-1          
    dry deposition            3.30589   0.00864688
    wet deposition            29.2268     0.135201
      stratiform              20.6644     0.109245
      convective              8.56232    0.0259569
    radioactive decay       0.0187709    0.0463424
 
Accumulation Term       
  Initial mass, g             219.137      8.87132
  Final   mass, g             218.879      8.87291
  Difference, g             -0.258087   0.00159264