Announcement of public comment period for Air Toxics Hot Spots draft guidance manual designed to improve the way the State estimates potential lifetime health risks from toxic air contaminants.
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.
