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Imperial County Air Pollution Control District


The Air Pollution Control District has released its revised IC 2017 STATE IMPLEMENTATION PLAN FOR THE 2008 8-HOUR OZONE STANDARD. Please visit our Public Notices page under Public Hearings for exact times and updates.

Ground-level or "bad" ozone is an air pollutant that is harmful to the human respiratory function and is known to damage crops, trees, and other vegetation. It is the main component of urban smog. At ground level, ozone is of greatest concern during the summer months because strong sunlight and hot weather result in harmful ozone concentrations in the ambient air. This is because ozone’s formation is promoted by strong sunlight, warm temperatures, and winds. High concentrations of ground-level ozone tend to be a problem in Imperial County only during the hot summer months when these conditions frequently occur. The Clean Air Act adopted the National Ambient Air Quality Standard to help protect the public health, vegetation and materials and to improve visibility. Only by developing, adopting and implementing a State Implementation Plan (SIP) that addresses those issues can air quality be improved and maintained.


Rule 310 Request for Proposals are now being accepted.
Please visit the Rule 310 page and scroll to the end of the page for the application or click here

The Air Quality Flag Program

Each day, organizations of all kinds raise a flag to communicate the air quality forecast to their communities. The color of the flag matches EPA’s official Air Quality Index (AQI): green, yellow, orange, red, purple, and maroon.
For the EPA Map click here

For Imperial Valley air click here

Published December 2, 2014This video shows the impressive work being done by the Air Districts of California. "Clean Air Legacy" was created by the California Air Pollution Control Officers' Association. More info is available at

Imperial County Agricultural Acres Burned 2011-2015

Acres Burned per year graph