NOTICE: CalEPA – OEHHA CalEnviroScreen 4.0 Update Release

From Cal EPA:

The California Environmental Protection Agency (CalEPA) and the Office of Environmental Health Hazard Assessment (OEHHA) have just released an updated version of the environmental justice tool, CalEnviroScreen. CalEnviroScreen 4.0 reflects the public input on the draft released in February 2021 and previous versions. The new version also includes several improvements to existing indicators that expand on earlier versions to incorporate additional pollution sources affecting Californians. These include chrome-plating facilities, dairies and feedlots, and certain industrial and manufacturing pollution sources in Mexico affecting California communities along the southern border.

Please see the OEHHA website for the materials, data and maps related to the CalEnviroScreen 4.0 update at:

Additionally, please see the OEHHA supplemental analysis and StoryMap accompanying CalEnviroScreen 4.0 which shows the dramatic differences in the racial composition of the state’s census tracts depending on their pollution burdens and vulnerabilities.

If you have questions, please contact Walker Wieland at, (916) 327-7331, or email

Additional Materials:
CalEnviroScreen 4.0 Report
Summary of Changes of the updates since version 3.0.
Maps of CalEnviroScreen 4.0 Results and Indicators

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