-
Regional Air Quality Data recent views
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... -
www.FuelEconomy.gov recent views
FuelEconomy.gov provides comprehensive information about vehicles' fuel economy. The official U.S. government site for fuel economy information, it is operated by the Department... -
RACT/BACT/LAER Clearninghouse (RBLC) recent views
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... -
AirNow Real Time Air Quality REST API recent views
A REST web service API allowing the retrieval of real time air quality index data from AirNow. -
Historical Ambient Air Quality Data Inventory recent views
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... -
Ambient Air Quality Data Inventory recent views
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,... -
OAR Tribal System recent views
OTS is an internal EPA national tribal database to assist the Regions and HQs in tracking tribal performance information. -
Air Quality System (AQS) recent views
The Air Quality System (AQS) database contains measurements of air pollutant concentrations from throughout the United States and its territories. The measurements include both... -
Photochemical Assessment Monitoring Stations (PAMS) recent views
Photochemical Assessment Monitoring Stations (PAMS). This file provides information on the numbers and distribution (latitude/longitude) of air monitoring sites which measure... -
Compliance and Emissions Data Reporting Interface (CEDRI) recent views
EPA regulations codified in 40 CFR Part 60 and 63 require affected sources to perform emissions source tests, conduct continuous emissions monitoring, and submit compliance and... -
AP-42 Emissions Factors (WebFIRE) recent views
Emissions factors have long been the fundamental tool in developing national, regional, state, and local emissions inventories for air quality management decisions and in... -
Air Quality System (AQS) ambient observations: 2007 ozone recent views
Ambient ozone concentrations for 2007 from the national ambient air quality monitoring networks stored in the Air Quality System (AQS). -
Air Trends recent views
Air Trends provides geographic trend information for specific air pollutants. -
Control Measure Dataset recent views
The EPA Control Measure Dataset is a collection of documents describing air pollution control available to regulated facilities for the control and abatement of air pollution... -
AQS Data Mart recent views
The AQS Data Mart is a database that contains all of the information from the AQS system. It is a storehouse of air quality information that allows users to make queries of... -
AirData AQS REST API recent views
A REST web service API allowing the retrieval of historical air quality data from EPA. -
Community Multi-scale Air Quality (CMAQ) Model Outputs recent views
The CMAQ Model Outputs data asset includes current and projected future levels of ambient concentrations and deposition to support regulatory impact analyses. -
Emissions Modeling Clearinghouse recent views
The Emissions Modeling Clearinghouse (EMCH) supports and promotes emissions modeling activities both internal and external to the EPA. Through this site, the EPA distributes and...
Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.