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

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 ...

Known as petroleum coke calcining plants, these 13 facilities in Baton Rouge, Gramercy, Chalmette and elsewhere were among the leading emitters of sulfur dioxide, hydrochloric acid, fine ...

The violation is separate from an incident in May that led to sulfur dioxide emissions, but involved the same pollution ...

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.

Yet the National Library of Medicine does include sulfur dioxide on its list of emissions from landfills. Eco-Vista has been Northwest Arkansas' only licensed public landfill since 1980.

The biggest source of sulfur dioxide in the atmosphere is the burning of fossil fuels at industrial facilities such as power plants, according to the U.S. Environmental Protection Agency. The Delaware ...

Primary sources of sulfur dioxide and nitrogen oxides in the atmosphere are: Power plants. Two-thirds of sulfur dioxide and a quarter of nitrogen oxides in the atmosphere come from electric power ...

According to 2021 MPCA data, the most recent available, the HERC was the top permitted source of nitrogen oxides in the county, releasing 403 tons; the second-highest source of sulfur dioxide ...