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Sulfur Cycle. Glynis Jehle Morgan Rosenberg. A Biogeochemical Cycle. Sulfur, a Biogeochemical Cycle. Acid Rain. SO2 + OH· → HOSO2·. HOSO2· + O2 → HO2· + SO3. SO3 ( g ) + H2O ( l ) → H2SO4 ( l ). Sulfur Fluxes (Amounts in 10 12 g S) . 65/ yr. 200/ yr. 444/ yr. 275/ yr. 252/ yr.
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Sulfur Cycle Glynis Jehle Morgan Rosenberg
A Biogeochemical Cycle Sulfur, a Biogeochemical Cycle Acid Rain SO2 + OH· → HOSO2· HOSO2· + O2 → HO2· + SO3 SO3 (g) + H2O (l) → H2SO4 (l)
Sulfur Fluxes (Amounts in 1012 g S) 65/yr 200/yr 444/yr 275/yr 252/yr 2.5/yr SOILS/ LAND BIOTA 3 X 105 LITHOSPHERE 2.4 X 1010 OCEANS 1.3 X 109 • Deposition from Atmosphere • Biogenic Processes • Sedimentation • Deposition from Atmosphere • Sedimentation • Sea Salt Particles • Volcanoes • Terrestrial Dust • Weathering into Rivers • Consumption • Deposition from Atmosphere • River Runoff
Sulfur Fluxes (Amounts in 1012 g S) 137/yr 296/yr 213/yr 296/yr LAKES/RIVERS 300 Atmosphere 4.8 • Deposition from Atmosphere • Weathering from Lithosphere • River Runoff • Deposition • Terrestrial Dust • Biogenic Processes (Land and Ocean) • Anthropogenic Emissions • Sea Salt Particles • Volcanoes