Technical Air Pollution Resources
This website provides access to a collection of EPA resources with technical information about many areas of air pollution prevention, technology, regulation, measurement, and science.
Air Emissions
- Air Emissions Measurement Center (EMC)
EMC provides information on test methods for measuring air pollutants from smokestacks and other industrial sources. Learn more about EMC.
- Clean Air Technology Center (CATC)
CATC provides access to resources about air pollution prevention and control technologies, including the RACT/BACT/LAER Clearinghouse. Learn more about CATC.
- Clearinghouse for Inventories and Emissions Factors (CHIEF)
CHIEF provides information on air emissions inventories and modeling, emissions factors, electronic reporting and the emissions monitoring knowledge base. Learn more about CHIEF.
Air Modeling
- Support Center for Regulatory Atmospheric Modeling (SCRAM)
Atmospheric dispersion models that support Clean Air Act regulatory programs. Learn more about SCRAM.
Air Monitoring
- Air Quality System (AQS)
AQS provides data from thousands of ambient air monitors, meteorological data, and data quality assurance/quality control information. Learn more about AQS.
- Ambient Monitoring Technology Information Center (AMTIC)
AMTIC has information on ambient air quality monitoring programs, monitoring methods, quality assurance and control procedures, and federal regulations related to ambient air quality monitoring. Learn more about AMTIC.
Analyzing Air Pollution Impacts and Control
- Air Quality Analysis
AQA provides the documented analyses that support the NAAQS Review process, as well as other documented analyses of special interest. Learn more about AQA.
- Economic and Cost Analysis (ECAS) for Air Pollution Regulations
ECAS provides tools, including databases and models, for analyzing costs, benefits, and economic impacts of air quality management strategies, programs, and regulations. Learn more about ECAS.
- Fate, Exposure, and Risk Analysis (FERA)
FERA provides tools used to evaluate the health risks and environmental effects associated with exposure to criteria air pollutants and toxic air pollutants. Learn more about FERA.
National Ambient Air Quality Standards (NAAQS)
- Scientific and technical information about NAAQS reviews
This site provides scientific and technical information about current and prior reviews of the six common air pollutants. Learn more about NAAQS.