Meeting Synopsis and Slide Presentations Carcinogen Identification Committee Meeting Held on October 12, 2011

A meeting of the Proposition 65¹ Carcinogen Identification Committee (CIC) was held on October 12, 2011, at the California Environmental Protection Agency Headquarters Building in Sacramento, California.  The Committee considered the listing of Tris(1,3-dichloro-2-propyl) phosphate and fluoride and its salts as known to the state cause cancer.  The Committee also provided OEHHA with its advice concerning the relative priority of 39 chemicals for possible hazard identification material preparation.  In addition, the Committee discussed procedures for public comment presentations, committee discussions and committee voting.  Following is a summary of that meeting. 

SUMMARY OF THE LISTING DECISION FOR TRIS(1,3-DICHLORO-2-PROPYL) PHOSPHATE (TDCPP) AND FLUORIDE AND ITS SALTS

Following a staff presentation, comments from the public and committee discussion, the CIC determined on a 5-1 vote that TDCPP has been clearly shown to cause cancer.  The CIC determined on a 6-0 vote that fluoride and its salts has not been clearly shown to cause cancer.

Follow these links to the slide presentations made at the meeting by staff of the California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) and members of the public:

• TDCPP staff presentation and supplemental slides, John Faust, Ph.D. and Laura August, M.P.H., OEHHA
• TDCPP public presentations, Nancy O’Malley, D.V.M., Ph.D. Albemarle Corporation and Andy Wang, Ph.D., ICL-IP America Inc.
• Fluoride and its salts staff presentation, David Morry, Ph.D. and Craig Steinmaus, M.D., M.P.H., OEHHA
• Fluoride and its salts public presentation, Howard Pollick, B.D.S., M.P.H, California Dental Association Foundation

SUMMARY OF CHEMICAL PRIORITIZATION DISCUSSION
The CIC recommended that 7 of the 39 chemicals referred to them for advice and consultation be placed in the ‘high’ priority group, 21 chemicals be placed in the ‘medium’ priority group, and the remaining 11 be placed in the ‘low’ priority group (see table below for specific suggestions concerning chemical priority assignments.)  Follow this link to the slide presentation made by OEHHA. For more information on the prioritization process for chemicals, please click here.

^*Public presentation made on pendimethalin, Frederick Hess, Ph.D., BASF Chemical Company

SUMMARY OF THE COMMITTEE MEETING PROCEDURES DISCUSSION

Following the staff presentation and committee discussion, the CIC advised that they generally prefer the following guidelines:

• Limiting public comments to five minutes per speaker with the Chair retaining discretion to extend the time when speakers are addressing complex scientific issues.  Time responding to clarifying questions from the committee is not included in the 5 minute limit.
• Not allowing speakers to cede time to each other.
• Keeping related speakers together.
• Announce time limits in advance of the meeting.
• Continuing to vote via a show of hands that are tallied and announced by the Chair.

Click here for meeting transcript.

Downloads

Staff presentation - Summary of chemical prioritization discussionOct 12, 2011

Background on the prioritization process for chemicalsDec 1, 2004

Staff presentation - Summary of the committee meeting procedures discussionOct 12, 2011

October 12, 2011 CIC Meeting TranscriptNov 2, 2011

Chemical Reference

• Fluoride and its Salts
• Tris(1,3-dichloro-2-propyl) Phosphate (TDCPP)

Related Notices

• Chemical Selected by OEHHA for Consideration for Listing by the Carcinogen Identification Committee and Request for Relevant Information on the Carcinogenic Hazards of Butyl Benzyl Phthalate

  Nov 26, 2012