Air Quality
From ground-level ozone to particulate matter to nitrogen dioxide, an array of gasses and particles can affect the air people breathe, with implications for human health.
An Earth Observatory Collection
Chiang Mai, a city in northern Thailand popular with tourists, faces seasonal spikes in air pollution. Â
Many cities have shortages of air quality monitors. NASA scientists have developed a tool called GEOS-CF that can help.
Even with fewer fires than normal in fall 2023, poor air quality plagued the region.
Flanked by mountain ranges on three sides, the basin in northwestern China sees frequent dust storms.
Satellite observations show that students of color in the U.S. attend public schools with higher concentrations of air pollution than…
Fierce fires in Canada are the source of smoke that has swirled across much of the continent.
NASA research finds that a combination of windblown dust and human-caused particle pollution was associated with nearly 3 million premature…
A team of scientists mapped nitrogen dioxide in California’s air at the neighborhood scale and found hotspots of the air…
In the wake of a cold front, strong winds lofted dust into the air over northern Mexico, eastern New Mexico,…
Snowy surfaces increase the chance of temperature inversions, which contribute to air quality problems in the Salt Lake City area.
The waters of an ancient lake once pooled in this basin in southwestern China. Now haze and air pollution do…
A rare December sandstorm in China darkened skies in several cities.
Seasonal fires and a mix of other pollutants darkened skies in Delhi and beyond.
A global standard limiting sulfur in ship fuel reduced artificial “ship track” clouds to record-low levels in 2020. Pandemic-related disruptions…
Scientists and regulators are using satellite data and custom models from NASA to help monitor ozone pollution.
The widespread adoption of cleaner-burning technologies and declines in fire activity over the past two decades has drawn down global…
A new satellite-derived dataset links concentrations of fine particulate matter in air pollution with health outcomes in cities around the…
A new satellite-derived global dataset links concentrations of nitrogen dioxide with cases of pediatric asthma in urban areas around the…
New research shows that neighborhoods in Washington, D.C., with more people of color are exposed to more air pollution and…
Satellite observations of nitrogen dioxide near key U.S. ports suggest that increased shipping activity and backlogs may be affecting air…
Dust storms and other weather phenomena offset some reductions in PM 2.5 aerosol pollution.
