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Emissions Modeling Clearinghouse
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 documents emissions datasets that are formatted for use in emissions models, which are used for emissions preparation for air quality modeling. The inventory data on this site are dervied from previous and current versions of the National Emission Inventory (NEI). This site also distributes the EPA's latest versions of ancillary datasets used to support the temporal, spatial, speciation, and future-year projection of these emissions.
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Registry of EPA Applications, Models, and Databases
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READ is EPA's authoritative source for information about Agency information resources, including applications/systems, datasets and models. READ is one component of the System of Registries (SoR).
Control Measure Dataset
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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 emissions from a range of regulated source types, whether directly through the use of technical measures, or indirectly through economic or other measures.
National Emission Inventory
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The National Emission Inventory contains measured, modeled, and estimated data for emissions of all known source categories in the US (stationary sources, fires, light duty vehicles and trucks, Heavy duty engines, Motorcycles, ATVs, non-road engines and equipment, locomotives, aircraft, and marine vessels). The statutory authority leading to the collection of this information comes from Title II, Part A of the Clean Air Act.Substance classes include CAPs, HAPs, and some GHG data.Data included in the National Emission Inventory is collected annually, Air Pollutant Trends Data is made available annually, and an National Emissions Inventory of air emissions of both Criteria and Hazardous air pollutants from all air emissions sources is prepared every three years.
Compliance and Emissions Data Reporting Interface (CEDRI)
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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 emissions reports . EPA is promulgating "E-Reporting" rules to require affected sources to electronically submit source test results, emissions monitoring data, compliance reports, and emissions reports to EPA. As a result the EPA has developed the Compliance and Emissions Data Reporting Interface (CEDRI) which is located on EPA's Central Data Exchange (CDX). The CDX Web is the application used by EPA programs and various stakeholders to manage environmental data transmitted to EPA in order to meet EPA's reporting requirements.
Pollution Control Measures and Equipment
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This asset provides information on all operating and planned-committed electricity generation units (used as primary input for IPM)
Pollution Control Measures and Equipment
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This asset provides information on all operating and planned-committed electricity generation units (used as primary input for IPM)
Criteria Air Emissions Trends
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The Air Emissions Trends site provides national trends of criteria pollutant and precursor emissions data based on the the National Emissions Inventory (NEI) from 1970 - the latest NEI year.
Criteria Air Emissions Trends
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The Air Emissions Trends site provides national trends of criteria pollutant and precursor emissions data based on the the National Emissions Inventory (NEI) from 1970 - the latest NEI year.
Modeling Results for Policy Analyses
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This asset provides information on policy options in abating SO2, NOx and Greenhouse gases.
Modeling Results for Policy Analyses
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This asset provides information on policy options in abating SO2, NOx and Greenhouse gases.