Total number of prokaryotes over land in bottom 3 km of the atmosphere
|
prokaryote |
~5E+19 |
cfu |
108507 |
William B. Whitman,*†... |
Fraction of viruses and bacteria deposited from the atmosphere that were attached to dust or organic aggregates
|
Biosphere |
viruses ~69%: bacteria ~97% |
% |
114909 |
Reche I, D'Orta G, Mladenov N... |
Top 10 gaseous elements in the atmosphere and their abundance
|
Biosphere |
Table - link |
Proportion (p.p.m) |
106344 |
Emsley John, Nature's... |
The top 10 gaseous elements in the atmosphere and their abundance
|
Biosphere |
Table - link |
N/A |
107259 |
Emsley John, Nature's... |
Pie chart of the balance of oxygen in the atmosphere and consumed in oxidizing processes over 1.8 billion years
|
Biosphere |
Table - link |
× 10^20 mol O2 |
116119 |
Duursma EK, Boisson MPRM... |
Average time for water to renew in rivers and to be completely replaced in the atmosphere
|
Biosphere |
in rivers renewed once every 16 days: in the atmosphere completely replaced once every 8 days |
days |
115098 |
Pidwirny, M. (2006).... |
Contribution of CO2 to the atmosphere by current (as of 1991) worldwide deforestation (see 'Comments' section for a more precise figure)
|
Biosphere |
0.8 x 10^14 - 2.5 x 10^14 |
mol CO2/year |
116105 |
Duursma EK, Boisson MPRM... |
Equilibration time for carbon dioxide between the atmosphere and near-surface layer of the oceans
|
Biosphere |
10-30 |
years |
101696 |
Nocera, D. Lewis, N.... |
Fraction of all the water on the Earth that is in the oceans (the rest is held as freshwater in glaciers and icecaps, groundwater, lakes, soil, the atmosphere, and within life)
|
Biosphere |
~97 |
% |
115097 |
Pidwirny, M. (2006).... |
Mean atmospheric oxygen content over Carboniferous period
|
Biosphere |
30 |
% |
101499 |
Holland HD. The oxygenation... |
Fraction of water that cycles each year from the land to the atmosphere that passes through the bodies of land plants
|
Biosphere |
0.667 |
unitless |
100808 |
Holbrook, N.M. and M.A.... |
The DMS concentrations and sea-to-air flux from the major ecological regions of the world ocean
|
Biosphere |
Table - link |
N/A |
107540 |
Andreae MO, Raemdonck... |
Ratio of ozone to oxygen in the stratosphere of present-day Earth
|
Biosphere |
~5×10^-5 |
unitless |
115037 |
Kihara S, Hartzler DA... |
Atmospheric concentration decrease for ideal isothermal conditions
|
Biosphere |
~9 |
km |
111406 |
Hans Kuhn, Horst-Dieter... |
Time for O2 replenishment by photosynthesis
|
Biosphere |
2000 |
years |
100471 |
Nobel, P. S.Plant Physiology... |
Rate of release of fossil-fuel derived CO2
|
Biosphere |
~4.25e+14 |
mol CO2/year |
116100 |
Duursma EK, Boisson MPRM... |
Deposition rates of viruses
|
Biosphere |
by atmospheric washout 0.31e9 - 3.84e9: by sedimentation 0.26e9 - 3.89e9 |
viruses/m^2/day |
114907 |
Reche I, D'Orta G, Mladenov N... |
Deposition rates of bacteria
|
Biosphere |
by atmospheric washout 0.88e7 - 5.78e7: by sedimentation 0.55e7 - 2.80e7 |
cells/m^2/day |
114908 |
Reche I, D'Orta G, Mladenov N... |
Concentration of dissolved carbon dioxide in surface ocean
|
Biosphere |
~10 |
μM |
108697 |
aquatic photosynthesis... |
Total dissolved inorganic carbon concentration in ocean water
|
Biosphere |
2 |
mM |
100964 |
aquatic photosynthesis... |