SPECIATE
Abstract
SPECIATE is the Environmental Protection Agency's repository of volatile organic gas and particulate matter (PM) speciation profiles of air pollution sources. Among the many uses of speciation data, these emission source profiles are used to create speciated emissions inventories for regional haze, PM, greenhouse gas, and photochemical air quality modeling; estimate hazardous air pollutant and toxic air pollutant emissions from PM and organic gas primary emissions; provide input to the Chemical Mass Balance receptor model; and verify profiles derived from ambient measurements by multivariate receptor models (e.g., factor analysis and positive matrix factorization).