Info

Contaminant

Sources

Sources

Pollutants

Natural

Concentrations

Residence Time

Sinks

Remarks

SO2

Fossil fuel combustion

Volcanoes, reactions of biogenic S emissions

2121

202

About 0.1 ppb3

1-4 days

Oxidation to sulfate by photochemical reactions or in liquid droplets

High reaction rates in summer due to photochemical processes

H2S and

Chemical pro

Volcanoes, biogenic

0 0

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