The PES Modeling Section specializes in developing, evaluating, and applying Air Quality Dispersion Models. Some of the most widely used EPA dispersion models, such as ISCST3, SCREEN3, and TSCREEN, were developed by our modeling team. PES has also been involved in the development and evaluation of the new AERMIC Model (AERMOD), which was proposed by EPA as a regulatory model at the 7^th Modeling Conference held on June 28-29, 2000 in Washington, DC..

Some of the specialties of PES’ Modeling Section are:

• Model Development and Evaluation
• Model Application for Permitting and Risk Assessment
• Model Training Workshops
• Meteorological Processing and Data Analysis

PES has played a major role in the development of the following EPA models:

• AERMOD         
• ISCST3
• SCREEN3

These models are available from the EPA’s SCRAM website.

Try the following PES on-line modeling software:

• SCREEN3 On-line
• H_eff On-line (Effective Source Height Calculator)
• Digital Elevation Model (DEM) File Finder

FOR MORE INFORMATION CONTACT:

Roger W. Brode
P.O. Box 12077
Research Triangle Park, NC 27709

919-941-0333

RWBrode@mactec.com

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