So2
Sulfur dioxide is produced through the combustion of sulfur-containing fuels, primarily coal; its abundance in the contemporary atmosphere reflects the distribution of economic activity, and the regulations in force which limit the use of such fuels.
Before technological changes and regulatory controls encouraged the use of cleaner fuels for home heating, sulfur dioxide pollution was a major issue in Europe and North America in the early to mid-twentieth century.
In the 1970s and 1980s, SO2 emissions from power stations were a major contributor to acid rain, before the introduction of flue gas cleansing technologies greatly reduced the emissions.
In the global atmosphere, SO2 oxidation leads to the formation/growth of aerosol particles, which can act as cloud condensation nuclei.
SO2 abundance in remote areas can be below 50 ppt, increasing to a few parts per billion in urban areas (levels in some power plant plumes and volcanic emissions may be much higher).
So2Sulfur dioxide is produced through the combustion of sulfur-containing fuels, primarily coal; its abundance in the contemporary atmosphere reflects the distribution of economic activity, and the regulations in force which limit the use of such fuels.Before technological changes and regulatory controls encouraged the use of cleaner fuels for home heating, sulfur dioxide pollution was a major issue in Europe and North America in the early to mid-twentieth century.In the 1970s and 1980s, SO2 emissions from power stations were a major contributor to acid rain, before the introduction of flue gas cleansing technologies greatly reduced the emissions.In the global atmosphere, SO2 oxidation leads to the formation/growth of aerosol particles, which can act as cloud condensation nuclei. SO2 abundance in remote areas can be below 50 ppt, increasing to a few parts per billion in urban areas (levels in some power plant plumes and volcanic emissions may be much higher).
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