EMFAC Web Database
The EMFAC Web Database provides a quick and easy way to access commonly used EMFAC emissions and emission rates data without having to install and run the EMFAC model. The Web Database contains daily emissions and emission rates data for all areas, calendar years and seasons generated from the EMFAC model. The Web Database currently does not include hourly emissions data or emission rates data by temperature and humidity, for these use cases please download and run the EMFAC model.
Note: Both EMFAC2011 and EMFAC2014 versions of the Web Database are available now. Unless otherwise approved by the project-specific approving agency, the EPA approved EMFAC version should be used for analyses. EMFAC2011 is the currently approved version of EMFAC.