Emissions Factors Software and Tools

WebFIRE	The FIRE database includes EPA's recommended emission estimation factors for criteria and hazardous air pollutants.
TANKS	TANKS estimates volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions from fixed- and floating-roof storage tanks.
SPECIATE	SPECIATE is EPA's repository of Total Organic Compound (TOC) and Particulate Matter (PM) speciated profiles for a variety of sources for use in source apportionment studies.
LandGEM	The Landfill Gas Emissions Model (LandGEM) is an automated estimation tool with a Microsoft Excel interface that can be used to estimate emission rates for total landfill gas, methane, carbon dioxide, nonmethane organic compounds, and individual air pollutants from municipal solid waste landfills. It is available from the EPA's Clean Air Technology Center.
WATER9	WATER9, a wastewater treatment model, consists of analytical expressions for estimating air emissions of individual waste constituents in wastewater collection, storage, treatment, and disposal facilities; a database listing many of the organic compounds; and procedures for obtaining reports of constituent fates, including air emissions and treatment effectiveness.
PM Calculator	March 31, 2006. After receiving numerous inquiries regarding the removal of the PM Calculator, EPA has reposted the software. The software is here for your convenience, however, it is no longer supported by EPA.