Air Toxics

This webpage provides important information about the Santa Barbara County Air Pollution Control District's Air Toxics Program.

Air Toxics is a generic term referring to a harmful chemical or group of chemicals in the air. Substances that are especially harmful to health, such as those considered under U.S. EPA's hazardous air pollutant program or California's AB 1807and/or AB 2588 air toxics programs, are considered to be air toxics. 

Technically, any compound that is in the air and has the potential to produce adverse health effects is an air toxic. 

California has always been a leader in protecting the environment and the health and welfare of its citizens. Many people in California are concerned about the health risks of toxic air pollutants. In response to this concern, the California State Legislature passed The Air Toxics "Hot Spots" Information and Assessment Act of 1987, and amended the Act in 1992. There are four main purposes of this legislation:

1. To identify the amount of toxic substances emitted into the air by specific businesses;
2. To estimate potential adverse health effects for members of the public exposed to these toxic air pollutants;
3. To inform the public of these toxic air emissions and the associated health impacts; and
4. To protect the public health by reducing toxic air emissions from businesses.

The Santa Barbara County Air Pollution Control District (APCD) is required to oversee implementation of this legislation. Through the Air Toxics "Hot Spots" Program, affected businesses, with assistance from the APCD, determine air toxic emissions. Businesses which release considerable amounts of toxic air pollutants are required to estimate public health risks associated with these emissions by performing a risk assessment. The APCD then oversees public notification and risk reduction programs required for businesses that pose a significant risk.

Advisories

• 08/01/11:  A new informational page about the Federal Regulations for Reciprocating Internal Combustion Engines (NESHAP Subpart ZZZZ, NSPS Subpart IIII and NSPS Subpart JJJJ) is now available.
• 01/22/10:  A link has been added to our Reference Material section of this page for the California Air Resources Board "Hot Spots" Stationary Diesel Engine Screening Risk Assessment Tables.
• 12/17/09:  A new informational page about the Federal Regulation for Paint Stripping and Miscellaneous Surface Coating Operations (NESHAP Subpart HHHHHH) is now available.
• 03/06/09:  The SBCAPCD Prioritization Guideline Document is now available for use.
• 03/06/09:  An example prioritization calculation spreadsheet is available for download here.  (Excel file, right click to download).
• 03/06/09:  The Quadrennial Update Form is now available for use.

Air Toxics Information

• Federal Regulation for Paint Stripping and Miscellaneous Surface Coating Operations NESHAP Subpart HHHHHH page.
• Airborne Toxic Control Measures (ATCM) page: ATCMs are issued by the state and implemented or adopted by APCD.
• Significant Risk Facilities in Santa Barbara County page.
• Air Toxics Frequently Asked Questions (FAQ) page.
• SBCAPCD "Hot Spots" Annual Report page.

Guideline Documents

• SBCAPCD Prioritization Guideline Document:  SBCAPCD Procedures for Prioritizing Facilities Pursuant to the Air Toxics "Hot Spots" Information and Assessment Act of 1987.
• SBCAPCD Modeling Guidelines for Health Risk Assessments (APCD Form -15i):  SBCAPCD Modeling Guidelines for Health Risk Assessments.  MS Word version is here (right click and Save As).

Air Toxics Calculations

• Example Prioritization Calculation Spreadsheet:  Prioritization Calculation Example Spreadsheet.  (right click to download).  Use this calculator to determine prioritization score, as documented in the SBCAPCD Prioritization Guideline Document.

Air Toxics Forms

• Health Risk Assessment Application Form -15.  MS Word version is here (right click and Save As).
• SBCAPCD Modeling Guidelines for Health Risk Assessments Form -15i.  MS Word version is here (right click and Save As).
• AB 2588 Quadrennial Update Form.
• SBCAPCD Quadrennial Update Summary Addendum Air Toxics Form-15u.

Reference Material

• California Air Resources Board "Hot Spots" Stationary Diesel Engine Screening Risk Assessment Tables. Screening risk assessment tables to estimate overall facility risk from diesel engine exhaust particulate matter from stationary diesel engines.
• US EPA: Hazardous Air Pollutants/Unified Air Toxics WebSite. Basic facts, pollutants and sources, technical resources.
• US EPA: Unified Air Toxics WebSite Health Effects Notebook for Hazardous Air Pollutants. Fact sheets and additional information on effects on human health of substances that are defined as hazardous by the 1990 amendments of the Clean Air Act.
• US EPA: Air Pollution and Health Risk. Brochure on understanding risks from air pollution.
• US EPA: Risk Assessment for Toxic Air Pollutants: A Citizen's Guide. Brochure on understanding health risk assessments.
• US EPA: Evaluating Exposures to Toxic Air Pollutants: A Citizen's Guide. Additional information on exposure to air toxic pollutants and understanding risk assessments.
• Ohio EPA: Understanding Risk Assessments. Additional information on understanding risk assessments.
• California Air Resources Board Air Toxics Program. General Information on state's air toxics program.
• California Air Resources Board Air Toxics Program Current Activities. Newly identified pollutants, control measures and other current activities.
• California Air Resources Board Consolidated Table of OEHHA/ARB Approved Risk Assessment Values. Look-up table of all cancer potency values and noncancer acute, 8-hour, and chronic Reference Exposure Levels (RELs) that are available for use in the AB 2588 Air Toxics "Hot Spots" Program.
• Office of Environmental Health Hazard Assessment. OEHHA is responsible for conducting health risk assessments of chemical contaminants in air and developing risk assessment guidance.
• OEHHA's Guide to Understanding Health Risk Assessments. This document provides a basic explanation of risk assessment for laypeople involved in environmental health issues, including policymakers, businesspeople, members of community groups, news reporters, and others with an interest in the potential health effects of toxic chemicals.
• "Hot Spots" Fee Table and Flow Chart. Use this link to determine a facility's state fee.   Annual state fees are based on risk and size of the facility.  "Hot Spots" fee categories, complexities, fee amounts, and description of each risk category are shown on this link.
• California Air Toxic Emission Factors (CATEF) Search. Use ARB's database to search for air toxic emission factors.
• Health Hazards for Airborne Latex Particles. Provides latex allergy information.
• National Library of Medicine Toxicology Tutorials.  This site provides access to Toxicology Tutorials designed to give users a working knowledge of basic toxicology principles.
• ToxLearn Multi-Module Toxicology Tutorial.  ToxLearn is a multi-module learning tool providing an introduction to fundamental toxicology principles and concepts.  This site is an update to and expansion of the National Library of Medicine Toxicology Tutors.

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

For more information or assistance, call or email David Harris at (805) 961-8824 (Air Toxics Section).

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