Welcome to the CAMx Home Page
CAMx v4.42 is now available for download
Version 4.42 is being released to provide important updates to the CAMx PSAT Probing Tool. Download this version of CAMx if:- You use PSAT
- You are upgrading from CAMx v4.31 or earlier
- You are downloading CAMx for the first time
If you use CAMx v4.40 but do not use the PSAT option then there is no need to download this version of CAMx. There are no changes to the CAMx test case (continue to use the v4.40 test case).
The Comprehensive Air quality Model with extensions is a publicly available open-source computer modeling system for the integrated assessment of gaseous and particulate air pollution. Built on today’s understanding that air quality issues are complex, interrelated, and reach beyond the urban scale, CAMx is designed to
- Simulate air quality over many geographic scales
- Treat a wide variety of inert and chemically active pollutants:
- Ozone
- Inorganic and organic PM2.5/PM10
- Mercury and toxics
- Provide source-receptor, sensitivity, and process analyses
- Be computationally efficient and easy to use
The U.S. EPA has approved the use of CAMx for numerous ozone and PM State Implementation Plans throughout the U.S, and has used this model to evaluate regional mitigation strategies. See the Overview page for more information on CAMx applications.
Get the CAMx User's Guide
(format: pdf)
