Sulfur dioxide is a toxic air pollutant released predominantly from vehicle exhaust, industrial emissions, and burning fossil ...

Sulfur dioxide pollution in the Yellowstone Valley continued its downward march last year by dropping below 10,000 tons for the first time. "It was a record low for S02 emissions," said Jim Hughes ...

Sulfur dioxide and closely related chemicals are known primarily as a cause of acid rain. ... In fact, volcanoes used to be the main source of atmospheric sulfur dioxide; today, people are.

The sources of the heightened sulfur dioxide, the regulators found, are the Magnitude 7 aluminum smelter in Marston and the adjacent New Madrid Power Plant, operated by Associated Electric ...

The gargantuan coal burner, built during the early to mid-1970s, became the nation’s largest source of sulfur dioxide, which creates acid rain and lung-damaging soot.

The researchers used a cutting-edge combination of satellite and ground-based monitoring to track sulfur dioxide emissions from the Sundhnukagigar volcano, which erupted in 2023.