Air Quality Standards
Health-Based Ambient Air Quality Standards
An ambient air quality standard sets legal limits on the level of an air pollutant in the outdoor (ambient) air necessary to protect public health. Both the California Air Resources Board (ARB) and the U.S. Environmental Protection Agency (U.S. EPA) are authorized to set ambient air quality standards.
Click here to view the state and federal ambient air quality standards (California and Federal).
Ventura County is an attainment area for all standards shown in the “Ambient Air Quality Standards Chart” except the following:
State and Federal Nonattainment Pollutants
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