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Basic Information
The Technology Transfer Network (TTN) is a collection of technical Web sites containing information about many areas of air pollution science, technology, regulation, measurement, and prevention.
AQS - This Air Quality System (AQS) technical area is designed primarily for AQS users (state, tribal and local agency management, EPA Regional Offices, consultants, and environmental groups.) It provides information about the use of the AQS application, software downloads, file formats, background project information, and events of special interest to personnel working with data for the AQS.
AMTIC - The Ambient Monitoring Technology Information Center contains information and files on ambient air quality monitoring programs, details on monitoring methods, relevant documents and articles, information on air quality trends and nonattainment areas, and federal regulations related to ambient air quality monitoring.
ATW - The Air Toxics Web site is a Web site for Federal/State and local air toxics programs and central repository for air toxics information.
CATC - The Clean Air Technology Center serves as a resource for all areas of emerging and existing air pollution prevention and control technologies, and provides public access to data and information on their use, effectiveness, and cost. CATC includes RACT/BACT/LAER Clearinghouse (RBLC) and the New and Emerging Environmental Technology (NEET) web site.
CHIEF - The ClearingHouse for Inventories and Emission Factors contains the latest information on emission inventories and emission factors. It provides access to the latest information and tools for estimating emissions of air pollutants and developing air emission inventories.
CICA - The U.S. - Mexico Information Center on Air Pollution (Centro de Información sobre Contaminación de Aire-CICA) provides technical support and assistance in evaluating air pollution problems along the U.S.-Mexico border. CICA is sponsored by the EPA's Clean Air Technology Center (CATC).
ECAS - The Air Benefit and Cost Group conducts analyses of costs, benefits, and economic and regulatory impacts of air quality management strategies, programs, and regulations developed throughout the Office of Air Quality Planning and Standards (OAQPS).
EMC - The Emission Measurement Center provides access to emission test methods and testing information for the development and enforcement of national, state, and local emission prevention and control programs.
FACA - [Archived] Under the provisions of the Federal Advisory Committee Act (FACA), EPA formed an advisory committee to obtain advice and recommendations on integrated approaches for implementing revised national ambient air quality standards (NAAQS) for ozone and particulate matter. The Charter for the Federal Advisory Committee for Ozone, Particulate Matter, and Regional Haze has expired. The material remains here for historical purposes only.
FERA - The tools found on this website, which include EPA's Total Risk Integrated Methodology, will assist with the Environmental Protection Agency's efforts to evaluate the health risks and environmental effects associated with exposure to "criteria" (six common air pollutants including ozone and particles) and toxic air pollutants.
GEI - The Geographic/Ecosystems Initiatives are geographically focused environmental activities which leverage the resources of states, local governments, regulated communities, environmental groups, and citizens.
Innovations - This site is your portal to innovative projects and processes for improving air quality. It provides access to EPA information as well as the latest state, local, tribal and industry initiatives.
NAAQS - The National Ambient Air Quality Standards (NAAQS) deals with six principal pollutants, which are called "criteria" pollutants. They are: Ozone (O3); Particulate Matter (PM); Carbon Monoxide (CO); Sulfur Dioxide (SO2);Nitrogen Oxides (NOx); and Lead (Pb)
OARP&G - The OAR Policy and Guidance Web site is designed to provide access to rules, policy, and guidance documents produced by the US EPA Office of Air and Radiation (OAR).
SCRAM - The Support Center for Regulatory Air Models is a source of information on atmospheric dispersion (air quality) models that support regulatory programs required by the Clean Air Act.