US EPA’S Draft Screening Level Approach May Broaden Scope of Chemical Risk Evaluations Under TSCA

The United States Environmental Protection Agency (US EPA) continues to advance various aspects of its chemicals regulatory agenda under the Toxic Substances Control Act (TSCA). A key part of the Biden Administration’s revisions to the TSCA program is its planned new screening approach for assessing ambient air and water exposures to fenceline communities. This screening approach is intended to broaden the scope of chemical risk evaluations to include exposures to fenceline communities from air emissions and water discharges of chemicals undergoing risk evaluation. 

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