Toxic Air Contaminants

According to section 39655 of the California Health and Safety Code, a toxic air contaminant (TAC) is "an air pollutant which may cause or contribute to an increase in mortality or an increase in serious illness, or which may pose a present or potential hazard to human health." In addition, substances which have been listed as federal hazardous air pollutants (HAPs) pursuant to section 7412 of Title 42 of the United States Code are TACs under the state's air toxics program pursuant to section 39657 (b) of the California Health and Safety Code. The Air Resources Board formally made this identification on April 8, 1993 (Title 17, California Code of Regulations, section 93001).

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Toxic Air Contaminant News

OEHHA extended the public comment period and held workshops for its Chronic Toxicity Summary for silica (crystalline, respirable). 
OEHHA released a draft Chronic Toxicity Summary for Silica (Crystalline, Respirable) for public comment, and held supporting workshops. 
OEHHA accepted comments on the draft document, Proposal for the Adoption of the Revised Toxicity Equivalency Factor (TEFWHO-97) Scheme, for characterizing adverse health impacts from…
The Scientfic Review Panel met to discuss OEHHA's draft RELs for Fluorides (including hydrogen fluoride, phosphine, and triethylamine), for inclusion in the Part III guideline document prepared by…
The Scientific Review Panel postponed discussion of OEHHA's draft  Chronic RELs for Fluorides including Hydrogen Fluoride, Phosphine, and Triethylamine from its 4/26/2002 meeting until a later…
OEHHA solicited comments on the document, "Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act."
OEHHA released the draft document, "Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act," and solicited public comments, prior to review by the state's…
OEHHA announced the end of the public comment period on the draft document, Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act.
A fact sheet was prepared by OEHHA and the American Lung Association (ALAC) regarding health hazards associated with diesel exhaust.
OEHHA announced the release the draft document, "Prioritization of Toxic Air Contaminants - Children's Environmental Health Protection Act", and solicited public comments.