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Air Quality News

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This map shows TEMPO observations of nitrogen dioxide plumes over Los Angeles County on January 8, 2025, during the Palisades and Eaton Fires.

TEMPO Data Available as ArcGIS Image Services

Several pollutants measured by TEMPO are available as ArcGIS image services, including nitrogen dioxide vertical column troposphere, formaldehyde vertical column, ozone total column, and cloud fraction.
News
April 1, 2026
This map of North America shows the ocean colored blue and land in shades of green. Hundreds of green dots are plotted across the land to show the locations of air quality sensors.

High Value Air Quality Data From Inexpensive Sensors

NASA has a new dataset built from ground-based sensor packages that cost less than $1,000. The data have potential for validating satellite measurements and providing local details for pollution studies.
News
March 18, 2026
High aerosol index over France due to Saharan dust on 5 March 2026 from the OMPS instrument aboard the joint NASA/NOAA Suomi NPP satellite.

Saharan Dust over Western Europe

The OMPS instrument aboard the NASA/NOAA Suomi NPP platform captured imagery and data on March 5, 2026.
Worldview Image of the Week
March 6, 2026
MOPITT instrument data

MOPITT is Retiring

After 25 years, the Measurements Of Pollution In The Troposphere (MOPITT) instrument ceased observing carbon monoxide (CO) in the atmosphere on Feb. 1, 2025.
News
May 6, 2025
Methane emissions detected by GHGSAT over the volcano Mount Fentale, Ethiopia on January 31, 2025 at 07:59:33 UTC. The image shows a Mapbox basemap satellite image of the volcano with the GHGSAT-detected emissions data superimposed on top. A rainbow colour ramp for the plumes shows the enhancement of methane above local background levels in parts per billion, with dark blue as low and bright red as high. The emission rate is estimated to be 58 metric tonnes per hour.

NASA CSDA Program Vendor Focus—GHGSat

Learn more about the NASA Commercial Satellite Data Acquisition (CSDA) program vendor GHGSat and how to discover, access, and work with their commercial methane emissions data products.
Webinar
March 3, 2025
This image shows nitrogen dioxide concentrations across the United States, averaged over 2021. The data were derived from the Aura satellite's Ozone Monitoring Instrument (OMI). Lower levels of gas are colored shades of blue and higher concentrations are depicted in shades from white, red to black.

HAQAST Showcase 2025

NASA's Health and Air Quality Applied Sciences Team (HAQAST) Showcase connects public health experts and air quality managers with NASA satellite data and products. This year's hybrid Showcase takes place on January 28, 2025.
Event
Jan. 21, 2025
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