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Federal
US EPA Nonattainment Areas and Designations
U.S. Environmental Protection Agency —
This web service contains the following state level layers:Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010 standard),... -
Federal
US EPA Nonattainment Areas and Designations - Download Package
U.S. Environmental Protection Agency —
This downloadable data package contains the following state level layers: Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010... -
Federal
Nonattainment Area - 8 hr Ozone (2015 Standard)
Department of Transportation —
The Nonattainment Area - 8 hr ozone (2015) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department... -
Federal
US EPA Nonattainment Areas and Designations-8 Hour Ozone (2008 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layers: Ozone 2008 NAAQS NAA State Level and Ozone 2008 NAAQS NAA National Level. Full FGDC metadata records for each layer... -
Federal
US EPA Nonattainment Areas and Designations-Annual PM2.5 (2012 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: PM2.5 Annual 2012 NAAQS State Level. Full FGDC metadata records for each layer may be found by clicking the layer name... -
Federal
US EPA Nonattainment Areas and Designations-SO2 (2010 NAAQS)
U.S. Environmental Protection Agency —
This web service contains the following layer: SO2 2010 NAAQS State Level. Full FGDC metadata records for each layer may be found by clicking the layer name at the... -
State
Air Quality Maintenance Area Particulate Matter
State of Oregon —
This polygon layer contains a spatial representation of geographic areas that are designated as Air Quality Maintenance Areas and Nonattainment Areas for the criteria... -
Federal
Nonattainment Area - 8 hr Ozone (2008 Standard)
Department of Transportation —
The Nonattainment Area - 8 hr ozone (2008) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department... -
Federal
Nonattainment Area - Particulate Matter - 10 (1987 Standard)
Department of Transportation —
The Nonattainment Area - Particulate Matter- 10 (1987) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S.... -
Federal
EPA Facility Registry Service (FRS): RBLC
U.S. Environmental Protection Agency —
This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that link... -
State
305b Assessed 2010 Estuary
State of Connecticut —
305b Assessed 2010 River, Lake, Estuary Set: Connecticut 305b Assessed River 2010 is a 1:24,000-scale, line feature-based layer that includes rivers that have been... -
State
Air Quality Maintenance Area Ozone
State of Oregon —
This polygon layer contains a spatial representation of geographic areas that are designated as Air Quality Maintenance Areas and Nonattainment Areas for the criteria... -
Federal
Nonattainment Area - Particulate Matter - 2.5 Annual (1997 Standard)
Department of Transportation —
The Nonattainment Area - Particulate Matter-2.5 Annual (1997) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of... -
Federal
Nonattainment Area - Nitrogen Dioxide (NO2 - 1971 Standard)
Department of Transportation —
The Nonattainment Area - Nitrogen Dioxide (NO2-1971) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S.... -
Federal
US EPA Nonattainment Areas and Designations-8 Hour Ozone (2015 NAAQS) - Web Service Layer
U.S. Environmental Protection Agency —
This web service layer, Ozone 8-hr (2015 standard), displays identified state level areas where ground-level ozone have not met the National Ambient Air Quality... -
State
305b Assessed 2012 Estuary
State of Connecticut —
305b Assessed 2012 River, Lake, Estuary set: Connecticut 305b Assessed River 2012 is a 1:24,000-scale, line feature-based layer that includes rivers that have been... -
State
Air Quality Maintenance Area Carbon Monoxide
State of Oregon —
This polygon layer contains a spatial representation of geographic areas that are designated as Air Quality Maintenance Areas and Nonattainment Areas for the criteria... -
Federal
Nonattainment Area - Particulate Matter - 2.5 Annual (2012 Standard)
Department of Transportation —
The Nonattainment Area - Particulate Matter-2.5 (2012) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S.... -
Federal
Nonattainment Area - 8 hr Ozone (1997 Standard)
Department of Transportation —
The Nonattainment Area - 8 hr Ozone (1997) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department... -
Federal
Nonattainment Area - Sulfur Dioxide (SO2 - 2010 Standard)
Department of Transportation —
The Nonattainment Area - Sulfur Dioxide (SO2-2010) dataset was updated on September 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S....