The documents below support the three versions of the Hazardous Air Pollutant Exposure Model currently available: HAPEM5, HAPEM6, and HAPEM7 (the latest version).
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- The HAPEM7 User’s Guide Hazardous Air Pollutant Exposure Model, Version 7 July 2015 (PDF)(142 pp, 2 MB)
- The HAPEM6 User’s Guide Hazardous Air Pollutant Exposure Model, Version 6 January 2007 (PDF)(119 pp, 645 K)
- The HAPEM5 User’s Guide Hazardous Air Pollutant Exposure Model, Version 5 March 2005 (PDF)(96 pp, 308 K)