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OEHHA has provided a number of comments on the risk characterization methodology and conclusions on the draft RCD for Metam Sodium. These comments and our recommendations, as well as suggested clarifications, additions and corrections, are contained in this report.
Aug 27, 2009, Program: Pesticides
This document establishes a PHG of 0.0007 parts per billion for the solvent 1,2,3-trichloropropane in drinking water.
Aug 20, 2009, Program: Water
OEHHA announces a public comment period and workshop for the draft Public Health Goal for hexavalent chromium in drinking water.
Aug 20, 2009, Program: Water
OEHHA Releases Draft PHG for Hexavalent Chromium: Public is Invited to Submit Comments on Draft Goal
Draft public health goal for hexavalent chromium in drinking water and announcement of public comment period and workshop.
Aug 20, 2009, Program: Water
Adoption of changes to the Safe Use Determination regulations to delete existing language in subsection (a) providing that Safe Use Determinations are advisory only and replace it with language providing that the Safe Use Determinations shall have presumptive effect, increase the filing fee for a Safe Use Determination request from $500.00 to $1000.00 in subsection (d)(1), and to create in subsection (g) a time limit of sixty (60) days for submission of additional material requested by OEHHA.
Aug 18, 2009, Program: Proposition 65
This memorandum represents an update of the literature review and evaluation of the existing PHG for 1,2-dichlorobenzene. Our re-evaluation supports the previous PHG derivation.
Aug 13, 2009, Program: Water
OEHHA released proposed revisions to its Technical Support Document for Cancer Potency Factors Appendix C - Use of Toxicity Equivalence Factors Scheme for Estimating Toxicity of Mixtures of Dioxin-like Chemicals to the public for comment.
Aug 7, 2009, Program: Air
On January 29, 2009, the Office of Environmental Health Hazard Assessment (OEHHA) convened a panel of scientific experts to provide input on the Toxics Information Clearinghouse, established by SB 509 (Simitian, Statutes of 2008). A series of questions were posed to the panelists to initiate a preliminary discussion of the hazard traits, toxicological and environmental endpoints and other relevant data to be contained in the Clearinghouse. The public was also invited to comment on the questions. The meeting report is now available.
Jul 21, 2009, Program: Risk Assessment
Request for relevant information on the developmental and reproductive toxicity of bisphenol-A, chlorpyrifos, chromium, DDE, and sulfur dioxide.
Jul 15, 2009, Program: Proposition 65
Comments received from the June 12, 2009 request for comments as to whether certain chemicals met the requirements for listing under the Labor Code mechanism.
Jul 10, 2009, Program: Proposition 65