Sulphur oxides: main emission sources

Estimated total SO2 emissions in Canada in year 2010 were 1 370 kilotonnes (without open sources e.g. forest fires, prescribed burning). The primary emitting sources are:

Pie chart of sulphur dioxide emissions for 2010. 27 percent represents non-ferrous mining and smelting, 24 percent electric power generation, 24 percent the petroleum industry, 14 percent other industrial sources, 6 percent marine emissions, 4 percent other sources and less than 1 percent is other transportation.
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