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  • Technical Support Document for Describing Available Cancer Potency Factors
• Exposure Assessment and Stochastic
• Risk Assessment Methodology
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• Toxic Air Contaminants
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Air Toxicology and Epidemiology

View a table of all TAC documents

• Meeting of the Scientific Review Panel for Toxic Air Contaminants on December 5, 2008
  [11/25/08]
  • Continuation of the Panel’s review of the draft Reference Exposure Levels for acrolein, acetaldehyde, arsenic, formaldehyde, manganese and mercury. (December 2008)
  • Continuation of the Panel’s review of the draft report “Air Toxics Hot Spots Risk Assessment Guidelines Part II: Technical Support Document for Cancer Potency Factors” (December 2008)
• Meeting of the Scientific Review Panel for Toxic Air Contaminants on October 30, 2008
  [10/10/08]
  • Continuation of the Panel’s review of the draft Reference Exposure Levels for acrolein, acetaldehyde, arsenic, mercury, manganese, and formaldehyde (September 2008)
  • Review of the draft report “Air Toxics Hot Spots Risk Assessment Guidelines Part II: Technical Support Document for Cancer Potency Factors” (October 2008)
• Adoption of a Unit Risk Value for Ethylbenzene
  [11/14/07]
• Proposal for the Adoption of a Unit Risk Factor for Ethylbenzene
  [08/27/07]
• Notice of Public Comment Period on Toxic Air Contaminants Program – Proposal for the Adoption of a Unit Risk Factor for Ethylbenzene
  [04/20/07]
• Memorandum: Environmental Tobacco Smoke As A Toxic Air Contaminant To Which Infants And Children May Be Especially Susceptible
  [02/02/06]
• California became the first state to declare secondhand smoke a toxic air pollutant yesterday. ETS was listed as a TAC because of the numerous health effects linked to exposure including development of asthma, heart disease, Sudden Infant Death Syndrome, respiratory infections in children, lung cancer and breast cancer.
  Find OEHHA ETS information here
  [01/27/06]
• The Air Resources Board (ARB) releases the Scientific Review Panel (SRP) Approved Version of the report, "Proposed Identification of Environmental Tobacco Smoke as a Toxic Air Contaminant
  [09/30/05]
• Adoption of Chronic Reference Exposure Levels for Silica (crystalline, respirable)
  [02/10/05]
• Document Available: Draft Chronic Reference exposure for Silica (Crystalline, respirable), and OEHHA's responses to public comments
  [11/03/04]
• Adoption of a Unit Risk Value for Naphthalene
  [08/03/04]
• Proposal for the Adoption of a Unit Risk Value for Naphthalene.Materials for Review by the Scientific Review Panel for Air Toxics
  [03/18/04]
• Proposal for the Adoption of a Unit Risk Value for Naphthalene
  [01/23/04]
• Adoption of the Revised Toxicity Equivalency Factors (TEF _WHO-97) for PCDDs, PCDFs, and Dioxin-Like PCBs
  [08/29/03]
• Notice to Interested Parties: Public Comment Period on the Toxic Air Contaminants Program - Proposal for the Adoption of the Revised Toxicity Equivalency Factor (TEF_WHO-97) Scheme
  [01/03/03]
• Notice to Interested Parties: Discussion of substances to be included in the Air Toxics Hot Spots Program Risk Assessment Guidelines, Part III: Technical Support Document "Determination of Noncancer Chronic Reference Exposure Levels": Fluorides including Hydrogen Fluoride, Phosphine and Triethylamine
  [07/10/02]
• Notice to Interested Parties: Discussion of substances to be included in the Air Toxics Hot Spots Program Risk Assessment Guidelines, Part III: Technical Support Document "Determination of Noncancer Chronic Reference Exposure Levels"
  [04/19/02]
• Notice to Interested Parties: Document Available: Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act - Final Report
  [10/19/01]
• Notice to Interested Parties: Responses to Comments on the Final Public Review Draft Prioritization of Toxic Air Contaminants Under the Children's Environmental Health Protection Act
  [07/26/01]
• Notice to Interested Parties: Notice of End of Final Comment Period on: Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act
  [06/22/01]
• Notice to Interested Parties: Document Available for Public Review: Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act
  [06/11/01]
• Notice to Interested Parties: Draft Responses to Comments on the Draft Prioritization of Toxic Air Contaminants Under the Children's Environmental Health Protection Act
  [04/26/01]
• Notice to Interested Parties - Comment Period Closed
  Document Available for Public Review: Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act
  [03/02/01]
• Asbestos Fact Sheet: Information on the health risks from exposure to asbestos
  [05/08/00]
• Proposed Identification of Diesel Exhaust as a Toxic Air Contaminant (courtesy of the California Air Resources Board Home Page)
  [06/97]
• Final Statement of Reasons for Rulemaking: Proposed Identification of Inorganic Lead as a Toxic Air Contaminant
  [04/24/97]
• Proposed Identification of Inorganic Lead as a Toxic Air Contaminant Executive Summary
  [10/31/96]

More information about the Toxic Air Contaminant Program is available from the California Air Resources Board http://www.arb.ca.gov/toxics/toxics.htm

Summaries of the TAC documents are available from the Air Resources Board at: http://www.arb.ca.gov/toxics/id/summary/summary.htm

Information about the TAC Program is also available from the California Department of Pesticide Regulation http://www.cdpr.ca.gov/docs/empm/pubs/tacmenu.htm