Daily data for flexible analysis from EPA 🇺🇸

Regulatory monitoring data for criteria air pollutants, along with various download and visualization options. Good for: Looking at pollution concentrations or changes in average air pollution at a specific location, county, or state.

Daily and hourly data for flexible analysis from EPA 🇺🇸

EPA monitoring data with an interface for more powerful analysis. Good for: Professional air quality analysts (requires login).

Satellite images for the whole Earth  🌎

Satellite data from NASA. Good for: Looking a wide range of satellite data on individual days, including air pollution data products.

Transport and dispersion model for the entire Earth at any time 🌎

A model from the NOAA that provides backwards trajectories, forward trajectories, and dispersion simulations using meteorological data. Good for: Predicting where air pollution may have traveled to or from during an air pollution episode.

Global Earth science data, current and past 🌎

Global satellite data from NASA. Good for: Creating plots and visualizing earth science data pertaining to aerosols, meteorology, and climate from both observations and models.

Emissions inventories produced every three years with a query tool for users to specify the scale (national, regional, state, or county), the pollutant, and the sectors to include 🇺🇸

All emissions (criteria, hazardous, greenhouse gas, and others) from EPA data. Good for: Filtering emissions by geographic scale and/or sector and/or year.

The model (InMAP) can be used to estimate changes in annual average fine particulate matter  🌎

Developed by university researchers, InMAP calculates annual average PM2.5 at resolutions supporting environmental justice assessment. Good for: Estimating changes in fine particulate matter from “what-if” policy scenarios.

The model (COBRA) estimates pollution reductions and resulting health benefits  🇺🇸

Developed by EPA, COBRA calculates annual average PM2.5 at the county-scale. Good for: Estimating changes in fine particulate matter from “what-if” policy scenarios in the U.S.

Annual air pollutant statistics from AirBase and AQ E-Reporting  🇪🇺

Air pollutant concentration data with an interface for queries and filtering. Good for: Downloading annual data for countries in Europe.