Air Toxics Intro | Air Toxics and Health | Air Toxics for Business | Air Toxics Regulations

The District’s Approved Emission Factors for Toxic Air Contaminants and associated spreadsheet with emission factors, SBCAPCD-Approved TAC Emission Factors.xlsx, were updated.  Updates include emission factors for Hot Mix Asphalt Plants, Aggregate Materials and Haul Roads.  A complete list of changes can be found in the history of updates to approved emission factors for toxic air contaminants.  More information can be found on the District’s Toxic Air Contaminant Emission Factors webpage.

Advisories

Guideline Documents

  • Modeling Guidelines for Health Risk Assessments: Form-15i.  All refined health risk assessments must follow the current version of this guideline document.
  • Gasoline Station Health Risk AssessmentsForm -25T.  All health risk assessments for gas stations must be accompanied by this completed form and follow the current version of the form.

Air Toxics Forms

Air Toxics Calculations

Performing Health Risk Assessments

  • The HARP modeling program can be obtained from CARB’s website.
  • District-approved meteorological data for use in AERMOD are available on the District’s Meteorological Data webpage.

Reference Material

For downloading instructions, see How to View and Download Documents.

For more information or assistance, please contact David Harris at (805) 961-8824 or at [email protected] (Air Toxics Section).