Air Toxics Hot Spots

December 26, 2023: The Governing Board of the Butte County Air Quality Management District (District) will hold a Public Hearing on January 25, 2024, at 10:00 a.m. at the Butte County Association of Governments Board Room, 326 Huss Drive, Suite 100, Chico, CA to consider the Air Toxics “Hot Spots” Information and Assessment Act of 1987 annual report of program activities. The annual report includes a summary of health risk assessments and identifies and assesses toxic air emissions from facilities within the District.

The annual report may be reviewed here.  For additional information please contact Riley Peacock at (530) 332-9400, ext. 107. Written comments on the annual report should be submitted by January 19, 2023 to: Board Clerk, Butte County Air Quality Management District, 629 Entler Avenue, Suite 15, Chico, CA 95928.


The goals of the AB 2588 Program are to collect emission data, to identify facilities having localized impacts, to ascertain health risks, and to notify nearby residents of significant risks.

The 2023 Air Toxics “Hot Spots” (AB 2588) Annual Report

The Air Toxics “Hot Spots” Information and Assessment Act of 1987 (AB 2588) requires certain emitters of airborne toxic compounds to submit toxic emissions inventory reports and updates. Facilities meeting Board-specified criteria must also complete health risk assessments. AB 2588 further requires the District to prepare an annual report summarizing progress on the implementation of the program.

HSC Section 44363 requires that the District Board conduct a public hearing concerning the subject report which must include information on the following:

  1.  The prioritization of facilities for the purpose of performing a health risk assessment for air emissions of listed substances;
  2.  The ranking and identification of facilities according to the degree of cancer risk posed to surrounding receptors;
  3.  The identification of facilities which expose individuals or populations to any non-cancer health risks; and
  4.  The status of development of control measures to reduce emissions of toxic air contaminants, if any.

To view large sources of Greenhouse Gas, Criteria, and Toxic pollutants in California, use the CARB Pollution Mapping Tool.

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