| Reservoir | Volume (106 km3) | Percent of Total | Residence Time |
|---|---|---|---|
| Oceans | 1350 | 97.3 | 103 — 104 yr |
| Glaciers | 29 | 2.1 | 101 — 103 yr |
| Aquifers | 8 | 0.6 | 2 wks — 104 yr |
| Lakes | 0.1 | 0.01 | 10 yr |
| Soil Moisture | 0.1 | 0.01 | 52 days |
| Atmosphere | 0.013 | 0.001 | 10 days |
| Rivers | 0.002 | 0.0002 | 2 wks |
| Biosphere | 0.001 | 0.0001 | 6 days |
After Graedel, T. E., and P. J. Crutzen, 1993: Atmospheric Change. An Earth System Perspective. W. H. Freeman and Company. 446 pp.