Sulfur Dioxide(SO2), a colorless gas with a pungent, suffocating odor, is a very water soluble, acidic gas.
SO2 is one of the US Environmental Protection Agency's (EPA) six major regulated criteria pollutants(Tropospheric Ozone, Nitrogen dioxide, Sulfur dioxide, Lead, PM2.5 and PM 10 particulates). It irritates the eyes, nose, and lungs. High concentrations of SO2 can result in temporary breathing impairment. It is produced by combustion of coal, fuel oil, and gasoline, since these fuels contain sulfur in the combustion, and in the oxidation of naturally occurring sulfur gases. It is a precursor to sulfuric acid, which is a major constituent of acid rain. SO2 is injected into the stratosphere by volcanic eruptions. SO2 also is a major precursor to PM2.5, which is a significant health concern, and a main contributor to poor visibility.
|(1) Atmospheric Chemistry Models ||(3) Health and Environment |
|(2) Air Quality Forecast Models ||(4) Climate Change |
GES DISC Datasets
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