SPECIATE

This page provides a description and a link to a "SPECIATE" database that provides information needed when modeling exposure levels or performing exposure assessment.

Short description

SPECIATE is the EPA's repository of total organic compound (TOC) and particulate matter (PM) speciation profiles of air pollution sources. Among the many uses of speciation data, these source profiles are used to: 1) create speciated emissions inventories for regional haze, particulate matter (PM2.5), and ozone (O3) air quality modeling; 2) estimate hazardous and toxic air pollutant emissions from total PM and TOC primary emissions; 3) provide input to chemical mass balance (CMB) receptor models; and, 4) verify profiles derived from ambient measurements using multivariate receptor models (e.g., factor analysis and positive matrix factorization). SPECIATE includes a total of 4,080 PM and TOC profiles

Link

http://www.epa.gov/ttn/chief/software/speciate/

Key words

emissions inventories, air, particles, sources, TOC, total organic compounds, PM2.5, particulate matter, O3, ozone, haze