Clearinghouse for Inventories & Emissions Factors | Clearinghouse for Emission Inventories and Emissions Factors | Technology Transfer Network

Emissions Inventories

Emissions Inventories are the basis for numerous efforts including trends analysis, regional, and local scale air quality modeling, regulatory impact assessments, and human exposure modeling.

Emissions Modeling

The Emissions Modeling Clearinghouse (EMCH) has been designed to support and promote emission modeling activities both internal and external to the EPA. Through this site the EPA intends to distribute emissions model input formatted inventories based on the latest versions of its National Emission Inventory databases.

Emissions Factors

Basic Information on emissions factors
AP-42 is a compilation of air pollutant emissions factors by source catagory
Web Factor Information Retreval System (WebFIRE) is an emissions factors repository and retrieval tool for criteria and hazardous air pollutants in addition to housing electronic reports
Emissions Factors Estimation Tools
New and Revised Emissions Factors for Flares and Certain Refinery Process units April 20, 2015

Electronic Reporting

Compliance and Emissions Data Reporting Interface (CEDRI) is the web interface for the submittal of electronic reports in NSPS and NESHAP regulations
Electronic Reporting Tool (ERT) is a program that generates electronic performance test reports
Web Factor Information Retreval System (WebFIRE) is an emissions factors repository and retrieval tool for criteria and hazardous air pollutants in addition to housing electronic reports

Emissions Monitoring Knowledge Base

EPA's Monitoring Knowledge Base Site provides information about monitoring techniques for air pollution control. The monitoring information is presented by industry type and by control technique.

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