Levels of the air pollutant have dropped by about 80 percent over the eastern United States.
Published Dec 22, 2015
A decade of satellite observations show how levels of a common air pollutant have changed over Asian skies.
Published Dec 15, 2015
On July 12, 2008, Okmok Volcano, in Alaska’s Aleutian Islands erupted, releasing a plume of ash and steam. Besides emissions visible to human eyes, Okmok also released sulfur dioxide, a gas our eyes cannot see, but which can affect both human health and climate.
Published Jul 25, 2008
This image shows measurements of sulfur dioxide in the air over one of the largest power plants in eastern Europe, the Maritsa Iztok Complex in Bulgaria, on January 12, 2009.
Published Jan 27, 2009
Using NASA’s Aura satellite and some new analysis techniques, researchers found previously missing or under-reported sources of the pollutant.
Published Jun 7, 2016
Sulfur dioxide emissions from ore processing facilities in Norilsk exceed that of many volcanoes.
Published Jun 8, 2018Image of the Day Atmosphere Land Human Presence Remote Sensing
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