Related Links
DISCLAIMER: Many of the following links are pointers to other hosts and locations on the Internet. This information is provided as a service; however the U.S. Environmental Protection Agency does not endorse, approve or otherwise support the non-EPA sites.
| EPA Links | State & Local Agency Links | Other Links |
EPA Links
- The AQS Database - The Air Quality System (AQS) database contains measurements of air pollutant concentrations in the 50 United States, plus the District of Columbia, Puerto Rico, and the Virgin Islands. The measurements include both criteria air pollutants and hazardous air pollutants.
- AQS data mart - The AQS Data Mart is a database containing all of the information from the AQS system. The AQS Data Mart was built as a storehouse of air quality information that allows users to make queries of unlimited quantities of data.
- AIRData - EPA's Aerometric Information Retrieval System (AIRS) is a computer-based repository of information about airborne pollution. AIRData allows on-line access to selected data from the AIRS database.
- AIR Explorer - Air Explorer is a collection of user-friendly visualization tools for air quality analysts. The tools generate maps, graphs, and data tables dynamically. Currently, the tools access ambient concentration data from EPA's Air Quality System (AQS). This is a developmental site. We are continually designing and implementing innovative tools for analyzing and communicating air quality information.
- Air Toxics Website - EPA's Air Toxics Web site.
- OAQPS Home Page - EPA's Office of Air Quality Planning and Standards Web site.
- OAQPS Air Monitoring Page - OAQPS resource center for air monitoring information.
- 8- hour ozone designation website
- Fine Particle (PM2.5) Designations website
- Regional Office Homepages - Access to all ten EPA Regional Homepages.
- Region IX Air Quality Maps - Nonattainment and other maps from EPA Region 9 (AZ, CA, HI, & NV).
- EPA's Science Advisory Board - The Science Advisory Board (SAB) was established to provide independent scientific and engineering advice to the EPA Administrator.
- The SCRAM Homepage - The homepage for the Support Center for Regulatory Air Models (SCRAM).
- EPA Test Methods Index - A listing of EPA test methods. EPA test methods are approved procedures for measuring the presence and concentration of physical and chemical pollutants; evaluating properties, such as toxic properties, of chemical substances; or measuring the effects of substances under various conditions.
- Clean Air Status and Trends Network (CASTNET) - CASTNET is the nation's primary source for data on dry acidic deposition and rural, ground-level ozone.
- Air Trends is prepared annually to provide information on the EPA's most recent evaluation of status and trends in our nation's air quality.
- The Green Book Contains lists and data on Nonatainment areas for Criteria Pollutants.
State & Local Agency Links

- Michigan DEQ Air Quality Monitoring Program - An excellent page with maps of monitoring sites and movies of ozone events.
- Pennsylvania DEP Ambient Air Monitoring Page
- Utah Division of Air Quality Air Monitoring Center Homepage
Other Links
- AIRNOW - The EPA, NOAA, NPS, tribal, state, and local agencies developed the AIRNow Web site to provide the public with easy access to national air quality information. The Web site offers daily AQI forecasts as well as real-time AQI conditions for over 300 cities across the US, and provides links to more detailed State and local air quality Web sites.
- The Center for Air Pollution
Impact and Trend Analysis(CAPITA)
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An excellent monitoring reference at Washington University, St. Louis.
Available resources include data sets and useful software tools. - National Association of Clean Air Agencies (NACAA) formerly STAPPA/ALAPCO
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State and Territorial Air Pollution Program Administrators / Association
of Local Air Pollution Control Officials homepage. Contains links to many
State and Local Agency homepages and other resources. - Tribal Air Monitoring Center
- The Tribal Air Monitoring Center was created through a partnership
between tribes, the Institute for Tribal Environmental Professionals, and EPA.
It is the first technical training center designed specifically to meet the
needs of tribes involved in air quality management and offers an array of
training and support services to tribal air professionals. - National Atmospheric Deposition Program (NADP)

NAPD is a nationwide network of precipitation monitoring sites. The network is a cooperative effort between many different groups, including the State Agricultural Experiment Stations, U.S. Geological Survey, U.S. Department of Agriculture, and numerous other governmental and private entities.
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