Table 1. Annual Average Global Budgets of 210Pb and 7Be in the Troposphere+Stratosphere for 2016 210Pb 7Be Burden, g 258.570 19.9171 Sources, g d-1 32.3815 0.403129 stratosphere 0.121357 0.266827 troposphere 32.2602 0.136303 Sinks, g d-1 32.5003 0.403313 dry deposition 3.95678 0.00952537 wet deposition stratiform 20.0439 0.108871 convective 8.47787 0.0257736 radioactive decay 0.0217542 0.259142 Accumulation Term Initial mass, g 241.653 20.0748 Final mass, g 241.355 20.0765 Difference, g -0.298264 0.00173569