• Organization: U.S. Environmental Protection Agency
• Updated: 2014-01-01

The Historical Ambient Air Quality Data Inventory contains measured and estimated data on ambient air pollution for use in assessing air quality, assisting in designating attainment/non-attainment...

• Organization: U.S. Environmental Protection Agency
• Updated: 2021-06-04

All Pandora data used in this studycan be downloaded freely from the Pandonia Global Network website https://www.pandonia-global-network.org/ (last access: 4 June 2021). Our gridded satellite NO2...

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• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - Particulate Matter-2.5 Annual (1997) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...

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• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - Lead (Pb-2008) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2014-01-01

OAR's RACT, BACT, LAER Clearinghouse (RBLC) data asset contains summary information on selected air permitting actions from EPA, state, and local permitting agencies across the U.S., as well as a...

• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - Particulate Matter- 10 (1987) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation...

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• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - 8 hr ozone (2015) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation (USDOT)/Bureau...

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• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - 8 hr ozone (2008) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation (USDOT)/Bureau...

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• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - Particulate Matter-2.5 24 hr (2006) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of...

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• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - Particulate Matter-2.5 (2012) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation...

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• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - 8 hr Ozone (1997) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation (USDOT)/Bureau...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2015-09-23

OAR's RACT, BACT, LAER Clearinghouse (RBLC) data asset contains summary information on selected air permitting actions from EPA, state, and local permitting agencies across the U.S., as well as a...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2014-01-01

The Office of Air and Radiation's (OAR) Ambient Air Quality Data (Current) contains ambient air pollution data collected by EPA, other federal agencies, as well as state, local, and tribal air...

• Organization: Department of Transportation
• Updated: 2025-12-13T00:00:00.000+00:00

The Nonattainment Area - Sulfur Dioxide (SO2-2010) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2020-01-09T00:00:00.000+00:00

This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that link to the RACT/BACT/LAER...