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Air Quality Realtime

Published by Department of Energy and Environment | District of Columbia | Catalog Last Checked: May 14, 2026 at 07:18 AM | Dataset Last Updated: May 14, 2026 at 02:15 AM
Dataset is comprised of hourly air quality data points captured from the District’s air monitoring network sites. The dataset is quality controlled by a process of field data verification and validation. The District of Columbia is providing this data for a rolling 1-year period. For complete real-time data, visit the EPA AirNow system at docs.airnowapi.org

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