The Comprehensive Air quality Model with extensions (CAMx) 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.

Download CAMx Here