Search datasets
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This polygon layer contains a spatial representation of geographic areas that are designated as Air Quality Maintenance Areas and Nonattainment Areas for the criteria pollutant OZONE. A criteria...
Search relevance: 199.36 | Views last month: 14 | Catalog Last Checked: August 02, 2026 at 05:30 PM -
This polygon layer contains a spatial representation of geographic areas that are designated as Air Quality Maintenance Areas and Nonattainment Areas for the criteria pollutant CARBON MONOXIDE. A...
Search relevance: 196.89 | Views last month: 11 | Catalog Last Checked: August 02, 2026 at 05:30 PM -
This polygon layer contains a spatial representation of geographic areas that are designated as Air Quality Maintenance Areas and Nonattainment Areas for the criteria pollutant PM10 (particulate...
Search relevance: 196.86 | Views last month: 4 | Catalog Last Checked: August 02, 2026 at 05:31 PM -
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...
Search relevance: 191.89 | Views last month: 7 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
Ambient concentrations of most requested pollutants from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).
Search relevance: 183.20 | Views last month: 0 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
This asset provides data on regional air quality, including trace level SO2, nitric acid, ozone, carbon monoxide, and NOy; and particulate sulfate, nitrate, and ammonium from 1989 to present....
Search relevance: 182.43 | Views last month: 16 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
Ambient ozone concentrations for 2007 from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).
Search relevance: 181.69 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
Increase the percentage of monitors demonstrating compliance with National Ambient Air Quality Standards from 79% in 2013 to 87% by 2017.
Search relevance: 177.54 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 09:13 AM -
Maintain the percentage of the population living where air quality meets federal standards at 100% every year through 2017.
Search relevance: 175.29 | Views last month: 0 | Catalog Last Checked: August 01, 2026 at 09:13 AM -
This GIS dataset contains points which depict air quality monitors within EPA's Air Quality System (AQS) monitoring network. This dataset is updated weekly to reflect the most recent changes in...
Search relevance: 171.40 | Views last month: 27 | Catalog Last Checked: August 03, 2026 at 04:43 AM -
Ambient ozone concentrations for 2008 from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).
Search relevance: 157.58 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
Ambient PM2.5 (particulate matter less than 2.5 microns) concentrations from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).
Search relevance: 154.78 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
A web page that describes and links to EPA systems for accessing and downloading ambient (outdoor) air quality and emissions data
Search relevance: 153.51 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
This map service contains participants in EPA's Air Quality Flags Program. The map service also includes the current day's AQI forecast for each participant in the program. The Air Quality Flag...
Search relevance: 152.45 | Views last month: 2 | Catalog Last Checked: August 03, 2026 at 04:43 AM -
This web service contains a polygon layer that depicts fused air quality predictions for 2012, 2013, and 2014 for census tracts in the conterminous United States. Fused air quality predictions...
Search relevance: 147.80 | Views last month: 4 | Catalog Last Checked: August 03, 2026 at 04:44 AM -
This dataset is made up of hourly measurements of PM2.5 and PM10, and meteorological measurements, collected through DOEE’s Purple Air network in the District of Columbia. The meteorological data...
Search relevance: 146.28 | Views last month: 6 | Catalog Last Checked: August 04, 2026 at 09:11 PM -
Part of What Works Cities Certification is reporting our city's annual average concentration of PM2.5 (fine particular matter) does not exceed 10 milligrams per cubic meter.The information is...
Search relevance: 145.38 | Views last month: 27 | Catalog Last Checked: March 21, 2026 at 08:51 PM -
Dataset contains information on New York City air quality surveillance data. Air pollution is one of the most important environmental threats to urban populations and while all people are...
Search relevance: 145.31 | Views last month: 306 | Catalog Last Checked: August 01, 2026 at 03:34 AM -
The CMAQ Model Outputs data asset includes current and projected future levels of ambient concentrations and deposition to support regulatory impact analyses.
Search relevance: 144.15 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 03:29 AM -
This dataset contains quality assured and DOEE-certified air quality data collected from the District’s five air monitoring network sites. The dataset covers a three-year period and includes...
Search relevance: 141.09 | Views last month: 56 | Catalog Last Checked: August 03, 2026 at 02:37 AM
