Table 1. Annual Average Global Budgets of 210Pb, 7Be, and 10Be in the Troposphere + Stratosphere for 2019 210Pb 7Be 10Be ----------- ----------- ----------- Burden, g 263.4903 19.9079 263.4824 Sources, g d-1 32.3355 0.4027 0.5752 Sinks, g d-1 32.4127 0.4028 0.5793 Dry deposition 3.8957 0.0105 0.0438 Wet deposition Stratiform 19.5150 0.1034 0.4181 Convective 8.9799 0.0299 0.1175 Radioactive decay 0.0221619 0.2590636 0.00000031 Sources - Sinks, g d-1 -0.077259 -0.000142 -0.004100 Accumulation Term Initial mass, g 232.9922 20.1045 267.8959 Final mass, g 238.1971 20.1792 266.9129 Difference, g 5.2048492 0.0746937 -0.9829407