Air Quality News

Articles, resources, and announcements from Air Quality.

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

The Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument collected its “first light” measurements of nitrogen dioxide air pollution over North America on August 2, 2023. This image shows TEMPO measurements of nitrogen dioxide over Southern California at 12:14 pm EDT.

TEMPO V03 Products Achieve Provisional Validation Status

More than a dozen Level 1, 2, and 3 data products from NASA's Tropospheric Emissions: Monitoring of Pollution (TEMPO) Version 03 collection are now available at provisional maturity.

News

Dec. 16, 2024

High Nitrogen Dioxide Levels from the Franklin Fire and Los Angeles

Image captured on Dec 10, 2024, by the TEMPO instrument aboard the Intesat-40e platform.

Worldview Image of the Week

Dec. 12, 2024

Base corrected reflectance image with aerosol index acquired on November 12, 2024, by the Suomi NPP/VIIRS instrument overlaid with AERONET sites showing ground-based aerosol optical depth measurements.

Smog over Pakistan

Base corrected reflectance image acquired on Nov 12, 2024, with aerosol index overlaid with ground-based aerosol optical depth measurements.

Worldview Image of the Week

Nov. 14, 2024

image of greenhouse gas in earth's atmosphere

New Beta Release for U.S. Greenhouse Gas Center Portal

New carbon dioxide and methane data, expanded spatial and temporal resolution for several datasets, and an enhanced data exploration environment are some of the updates in this beta release.

News

June 4, 2024

Speeding Greenhouse Gas Data Access

The U.S. Greenhouse Gas Center expedites the use of Earth science data related to methane, carbon dioxide, and other greenhouse gas datasets by offering openly available information in a central location.

Blog

March 26, 2024

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