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
Ventura County

 

 

 

Pollutant

 

 Standard Attainment Status
Ozone  

1 Hour

 

 State Nonattainment
 

8 Hour

 

 State and Federal Nonattainment
 

Particulate Matter
PM10

 

  

24 Hour

 

 State Nonattainment
 

Annual Arithmetic Mean