Sulfur Dioxide
SO2SO₂
A toxic gas produced mainly by burning fossil fuels at power plants and industrial facilities. Contributes to acid rain and aggravates respiratory illness.
Related terms
Criteria Pollutants The six common air pollutants regulated under NAAQS: ground-level ozone, particulate matter, carbon monoxide, lead, sulfur dioxide, and nitrogen dioxide. Refinery An industrial facility that processes crude oil into gasoline, diesel, jet fuel, and other petrochemical products. Refineries are major emitters of benzene, sulfur compounds, and volatile organic chemicals.