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Criteria Pollutants    At a Glance    In Depth
Nitrogen Dioxide
Nitrogen Dioxide

Ozone
Ozone

Carbon Monoxide
Carbon Monoxide

Sulfure Dioxide
Sulfur Dioxide

Particulate Matter
Particulate Matter

Lead
Lead

 

At a Glance

Sulfur Dioxide - SO2
Sulfur-containing gases called sulfur oxides are formed when oil products burn.

Source
Sulfur oxides are produced by cars, oil refineries and chemical plants, when fuels are burned that contain sulfur (like coal, oil products and wood).

How It Hurts
Sulfur dioxide constricts the airways and triggers asthma attacks. Other sulfur compounds are a big part of acid rain, acid snow and haze.

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SO2 attacks the lungs
SO2 attacks the lungs

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