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Air Quality Data Access and Tools

NASA has air quality datasets that help researchers characterize the particular makeup of the air we breathe. Access a range of data and data tools such as AppEEARS, FIRMS, and Giovanni to make the most of air quality data.

Air quality comprises a constellation of scientific topics that inform our understanding of this field. Learn more about data and resources focused on aerosol optical depth, aerosol index, trace gases, land surface reflectance, the effect of dust, ash, and smoke, and human dimensions, including natural hazards.

Many NASA observation methods—platforms, instruments, and space geodesy techniques—provide data that improve our understanding of air quality, including NASA's Tropospheric Emissions: Monitoring Pollution (TEMPO) instrument, featured below. Learn more about how the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), Harmonized Landsat Sentinel-2 (HLS), Moderate Resolution Imaging Spectroradiometer (MODIS), and Visible Infrared Imaging Radiometer Suite (VIIRS) continually acquire data about pollutants.

Air Quality Datasets

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Dataset Sort descending	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Spatial Resolution	Data Format
MERRA-2 tavgM_2d_adg_Nx: 2d,Monthly mean,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics (extended) 0.625 x 0.5 degree V5.12.4 (M2TMNXADG) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_aer_Nx: 2d,Monthly mean,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXAER) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_chm_Nx: 2d,Monthly mean,Time-Averaged,Single-Level,Assimilation,Carbon Monoxide and Ozone Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXCHM) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_adg_Nx: 2d,diurnal,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics (extended) 0.625 x 0.5 degree V5.12.4 (M2TUNXADG) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_aer_Nx: 2d,diurnal,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXAER) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgU_2d_chm_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Carbon Monoxide and Ozone Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXCHM) at GES DISC	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA2_CNN_HAQAST bias corrected global hourly surface total PM2.5 mass concentration, V1 (MERRA2_CNN_HAQAST_PM25) at GES DISC	1	Data Analysis	NOT APPLICABLE	2000-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MOOSE Aerodyne Mobile Laboratory Measurements	1	GROUND-BASED OBSERVATIONS	GC-EI-TOF, Aerodyne Mini-TILDAS, Aerodyne CAPS, LICOR GAS EXCHANGE SYSTEM, 2B Technologies	2021-05-20 to 2021-07-01			ICARTT
MOOSE NASA G-3 Aircraft GEO-CAPE Airborne Simulator (GCAS) Remotely Sensed Data	1	G-III	GCAS	2021-06-05 to 2021-06-29			NetCDF-4
MSAQSO2L4 version 1 is superseded by newer version, DOI: 10.5067/MEASURES/SO2/DATA406	1	Aura, Suomi-NPP, Nimbus-7, EP-TOMS	OMI, OMPS, TOMS	2005-01-01 to 2018-12-31	N: 90 S: -90 E: 180 W: -180
Multi-Satellite Air Quality Sulfur Dioxide (SO2) Database Long-Term L4 Global V2 (MSAQSO2L4) at GES DISC	2	Aura, Suomi-NPP, Sentinel-5P, NOAA-20	OMI, OMPS, TROPOMI	2005-01-01 to 2024-12-31	N: 90 S: -90 E: 180 W: -180
Multi-Satellite Volcanic Sulfur Dioxide L4 Long-Term Global Database V4 (MSVOLSO2L4) at GES DISC	4	Meteor-3, Aura, Suomi-NPP, Nimbus-7, EP-TOMS, Aqua, ADEOS-II, Sentinel-5P, NOAA-20	TOMS, OMI, OMPS, AIRS, TROPOMI	1978-10-31 to 2025-03-17	N: 90 S: -90 E: 180 W: -180
NAAMES C-130 Aircraft Merge Data Files	1	C-130	Computer	2015-11-10 to 2017-09-22			ICARTT
NAAMES C-130 Trace Gas In Situ Data, Version 1	1	C-130	LGR, PTR-MS	2015-11-12 to 2017-09-20			ICARTT
NAAMES R/V Atlantis Trace Gas In Situ Data, Version 1	1	R/V Atlantis	OZONE SENSOR, CARBON ANALYZERS	2015-11-06 to 2018-04-12			ICARTT
NACP North American 8-km Net Ecosystem Exchange and Component Fluxes, 2004	1	NOT APPLICABLE	NOT APPLICABLE	2004-01-01 to 2004-12-31	N: 90 S: 2.736 E: -34.113 W: -179.553		Binary
NARSTO 1998 Model-Intercomparison Study Verification Data: NARSTO-Northeast 1995 Surface Ozone, NO, and NOx Langley Data Center Data Set	1	GROUND STATIONS	UV OZONE DETECTORS, CHEMILUMINESCENCE	1995-05-01 to 1995-09-30			ASCII
NARSTO EPA Supersite (SS) Atlanta 1999 Rapid Single-Particle Mass Spectrometer (SPMS) Data.	1	FIELD SURVEYS	RSMS	1999-08-10 to 1999-08-31			ASCII
NARSTO EPA Supersite (SS) Baltimore, Rapid Single-Particle Mass Spectrometer (RSMS) Data	1	FIELD SURVEYS	RSMS	2002-03-20 to 2002-12-10			ASCII
NARSTO EPA Supersite (SS) Baltimore, Semicontinuous Elements in Aerosol Sampler (SEAS) Particulate Matter (PM) 25 Metal Cytokines Data	1	LABORATORY, GROUND STATIONS	AEROSOL COLLECTORS, AAS	2001-08-27 to 2002-11-27			ASCII
NARSTO EPA Supersite (SS) Fresno, Beta Attenuation Monitors (BAM), Particulate Mass Concentration Data	1	GROUND STATIONS	PARTICLE DETECTORS	1999-12-04 to 2004-01-01			ASCII
NARSTO EPA Supersite (SS) Fresno, tapered element oscillating microbalance (TEOM) Particulate Mass Concentration Data	1	GROUND STATIONS	TEOM	1999-07-10 to 2003-09-30			ASCII
NARSTO EPA Supersite (SS) Houston, Rapid Single-Particle Mass Spectrometer (SPMS) Data	1	FIELD SURVEYS	RSMS	1999-08-25 to 2000-08-31			ASCII
NARSTO EPA Supersite (SS) Houston, Texas Air Quality Study 2000 (TexAQS2000) Formaldehyde and Hydrogen Peroxide Data	1	GROUND STATIONS	FLUORESCENCE SPECTROSCOPY	2000-08-12 to 2000-09-25			ASCII
NARSTO EPA Supersite (SS) Pittsburgh Gas Concentration and Particulate matter (PM) Physical Properties Data	1	GROUND STATIONS	AEROSOL/CLOUD PARTICLE SIZER, FLUORESCENCE SPECTROSCOPY, SMPS	2001-05-23 to 2002-09-01			ASCII

Featured Air Quality Observation Method: TEMPO

NASA's Tropospheric Emissions: Monitoring Pollution (TEMPO) instrument provides hourly measurements of O3, NO2, and other key elements of air pollution.

Learn more about TEMPO

A visualization of nitrogen dioxide emissions over North America from the TEMPO instrument.

New TEMPO Beta Level 1 Data Products

These new Tropospheric Emissions: Monitoring of Pollution (TEMPO) products will aid validation efforts and algorithm development, and will be used to expand the mission’s higher-level products.

5 MIN READ

Finding Your TEMPO: An Introduction to the Mission, Products, and Data Services for Air Quality Observations over North America

This webinar provides an overview of the TEMPO mission and its data products and shows how to discover and access TEMPO data products using NASA's Earthdata Search.

A view of atmospheric pollution in the Chicago metropolitan area from the TEMPO mission.

Worldview Adds New Data Layers from NASA's TEMPO Mission

The 14 layers from the Tropospheric Emissions: Monitoring of Pollution mission offer data on clouds, nitrogen dioxide, ozone, and more.

This image from the first light release of data from the TEMPO mission shows areas air pollution over the New York City and Washington, DC.

TEMPO Mission Releases Beta Level 1, 2, and 3 Version 03 Data Products

The beta release of Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission data products lets users begin developing applications using these data.

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