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Welcome to CHAPIS - The Community Health Air Pollution Information System Last Updated June 1, 2004 
The California Air Resources Board (ARB) developed CHAPIS as an Internet-based tool to provide a graphical way to look at the amounts and spatial distribution of air pollution emission sources in California. CHAPIS provides a mapping tool to analyze the spatial characteristics of California's Air Pollutant Emission Inventory, for emissions of traditional criteria air pollutants and key toxic air pollutants. This is a prototype, showing selected data from the ARB and local Districts, for point source, mobile source, and dispersed source emissions data. For online help or more information about CHAPIS, click here. To begin using CHAPIS, select an area of interest using the menus or map provided below.
Select an Area of Interest:

Select an area of interest using the menus below or use the map, and click on the county of your choice.
County:          

Air Basin:        

Air District:

Region:     

Or Enter a Zip Code:    Click to zoom to zip code
* This website is best viewed with your screen area set to   1024 x 768 px.
Website developed by VESTRA Resources Inc.
ARB Homepage
A department of the California Environmental Protection Agency