July 31, 2023
Draft Supplement to Risk Evaluation and Draft Revised TSCA Risk Determination for 1,4-Dioxane for Public Comment
On July 10, 2023, the U.S. Environmental Protection Agency (EPA) announced the availability of the draft supplement to the risk evaluation for 1,4-dioxane for public comment and peer review. 88 Fed. Reg. 43562. EPA states in its July 7, 2023, press release that the draft supplement to the 2020 risk evaluation considers air and water exposure pathways that were excluded from the earlier risk evaluation and exposure to 1,4-dioxane generated as a byproduct. The draft...