Prop 65 Roundup - October 2025

Prop 65 Counsel: What To Know

“California Court Ruling Endangers Public Health by Failing to Require Processed Meat on Prop 65 List of Carcinogens” Claims the Physicians Committee for Responsible Medicine

In what the Physicians Committee characterizes as a major blow to public health, the Superior Court of California has ruled that the State of California may ignore the dangers of processed meat, a product that the World Health Organization has classified as “‘carcinogenic to humans’ (Group 1) on the basis of sufficient evidence for colorectal cancer.”

Proposition 65: NSRLs for Titanium Dioxide

The Office of Environmental Health Hazard Assessment (OEHHA) has adopted No Significant Risk Levels (NSRLs) for titanium dioxide (airborne, unbound particles of respirable size) of 440 micrograms per day for airborne, unbound titanium dioxide particles with diameters of 10 micrometers or less, and 44 micrograms per day for airborne, unbound titanium dioxide particles with diameters of 0.8 micrometers or less.

Proposed PHG for 1,4-Dioxane in Drinking Water

OEHHA is extending the public comment period by 15 days on the draft technical support document for the proposed public health goal (PHG) for 1,4-dioxane in drinking water. The comment period will now close on November 25. The extension is in response to a request from the American Chemistry Council.

Indicators of Climate Change: Impacts on California Tribes

OEHHA recognizes the value of Tribal knowledge in reporting on and raising awareness of climate impacts. OEHHA engages with California Tribes on an ongoing basis.

PHGs in Drinking Water for Perfluorohexane Sulfonic Acid (PFHxS) and Arsenic

The Calderon-Sher California Safe Drinking Water Act of 1996 requires the OEHHA to post a notice on its website when initiating the development or update of PHGs for contaminants in drinking water.