About the Scientific Review Panel
The Scientific Review Panel (Panel) is charged with evaluating the risk assessments of substances proposed for identification as toxic air contaminants by CARB, the Office of Environmental Health Hazard Assessment (OEHHA) and the Department of Pesticide Regulation (DPR), and the review of risk assessment guidelines prepared by OEHHA. In carrying out this responsibility, the Panel reviews the exposure and health assessment reports, and the underlying scientific data on which the reports are based, which are prepared by CARB, DPR, and OEHHA pursuant to Health and Safety Code sections 39660-39661, 39669.5 and 44360, and Food and Agricultural Code sections 14022-14023. These reports are prepared for the purpose of determining whether a substance or pesticide should be identified as a toxic air contaminant, or as guidelines to be used in preparing health risk assessments. The Panel is also to be consulted in the implementation of Assembly Bill 617 (H&SC sections 42705.5(b) and 44391.2; Chapter 136, Statutes of 2017).
The Panel welcomes written comments or submissions from all parties regarding reports that are under review, but does not accept oral comments from the public at its meetings based on discretion reserved to the panel in the Health and Safety Code (see for example Health & Safety Code § 39661 subd.(b)). Although written comments are accepted up to the day of a scheduled meeting, to assure adequate review the Panel requests that written comments and information be submitted to the Panel Liaison (contact information below) as early as possible prior to a scheduled meeting.
Transcripts to previously held Panel meetings and other information about the Panel can be found on CARB's website.
Agenda
- Welcome and Introductions
- Review of “p-Chloro-α,α,α-trifluorotoluene (p-Chlorobenzotrifluoride, PCBTF) – Cancer Inhalation Unit Risk Factor – Technical Support Document for Cancer Potency Factors – Appendix B”
Scientific Review Panel Draft – January 2020
Office of Environmental Health Hazard Assessment (OEHHA) staff will present a draft document summarizing the carcinogenicity and derivation of a proposed cancer inhalation unit risk factor for p-chloro-α,α,α-trifluorotoluene, also known as p‑chlorobenzotrifluoride (PCBTF). Cancer unit risk factors are used to estimate lifetime cancer risks associated with inhalation exposure to a carcinogen.
OEHHA is required to develop guidelines for conducting health risk assessments under the Air Toxics Hot Spots Program (Health and Safety Code Section 44360 (b)(2)). The proposed PCBTF unit risk factor in this report (https://oehha.ca.gov/air/crnr/p-chloro-aaa-trifluorotoluene-p-chlorobenzotrifluoride-pcbtf-cancer-inhalation-cancer-unit) was developed using the most recent “Air Toxics Hot Spots Program Technical Support Document for Cancer Potency Factors” finalized by OEHHA in 2009.
- Continuation of the discussion of the chemical substances list in Appendix A of the AB 2588 Air Toxics “Hot Spots” Emission Inventory Criteria and Guidelines regulation.
The California Air Resources Board (CARB) compiles air toxics emissions data for stationary sources as required by the Air Toxics “Hot Spots” Act (Health and Safety Code section 44300 et seq.; AB2588, Connelly). Under this program, stationary source facilities are required to report the types and quantities of toxic substances they routinely release into the air. The goals of this program are to compile information on toxics emissions; identify facilities having potential for localized impacts; evaluate their health risks; notify nearby residents about significant risks; and ultimately reduce the risks below a health protective threshold.
The Toxics “Hot Spots” Emission Inventory Criteria and Guidelines (EICG) regulation was last updated in 2007. In the October 4, 2019 meeting, CARB staff presented and the Panel discussed draft proposed changes to the chemical substances list in Appendix A of the EICG regulation. The Panel continued its discussion of the chemical list in a teleconference meeting on November 22, and made additional recommendations to CARB staff. In this meeting, CARB staff will provide a brief update and will also discuss comments received for the November 22 meeting, and the Panel will discuss and vote on their preliminary findings regarding the chemical list. The proposed changes to the chemical list being reviewed are posted on the CARB “Hot Spots” Toxics Inventory web page at: https://ww3.arb.ca.gov/ab2588/2588guid.htm
- Consideration of administrative matters.
The Panel may discuss various administrative matters and scheduling of future meetings.
The agenda items listed above may be considered in a different order at the meeting.
Contact
For further information regarding the content of the meeting agenda, please contact CARB's panel liaison Lori Miyasato at (916) 324-9284 or via mail at P.O. Box 2815, Sacramento, CA 95812.
If you require a special accommodation or need this document in an alternate format or language, please contact Lori Miyasato at (916) 324-9284 as soon as possible, but no later than 10 business days before the scheduled meeting.
TTY/TDD/Speech to Speech users may dial 711 for the California Relay Service.
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