EPA Finalizes Solvent 1,4-Dioxane TSCA Risk Evaluation

On Nov. 13, EPA released its final supplement to the risk evaluation and final risk determination for the solvent 1,4-dioxane under the Toxic Substances Control Act (TSCA). EPA has determined that this chemical poses an unreasonable risk of injury to human health....

GAP NOFA Webinar: Recording and Slides

FY 26 GAP NOFA Webinar What’s New in the Uniform Grants Guidance 2024 On November 12, EPA Region 10 provided an overview of GAP funding in FY26. Initial proposals are due to your EPA Project Officer by January 21, 2025. (And would we take them early? You...

PM2.5 National Ambient Air Quality Standards: NTAA Article

The Clean Air Act requires EPA to review new science on the public health and environmental impacts of air pollutants every 5 years and revise the National Ambient Air Quality Standards (NAAQS), as necessary. EPA lowered the annual NAAQS for PM2.5 from 12.0 to 9.0...