The Global Sulfur Cycle
The chemistry of gaseous sulfur compounds in the atmosphere at concentrations less than 0.1 ppm depends upon nonuniform distributions of sources and sinks as well as the variable physical properties of the atmosphere itself. Because of natural variations in sunlight intensity, temperature, humidity, surface chemical characteristics, and atmospheric transport processes, the behavior of sulfur compounds, both gaseous and particulate, is complex, and may never be known in great detail. Similar statements might be made for other trace constituents of the atmosphere, notably nitrogen oxides and nitrates. In this chapter, however, we will be concerned only with sulfur compounds.
KeywordsHydrogen Sulfide River Runoff Sulfur Cycle Organic Sulfide Atmospheric Sulfur
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