HUMAN HEALTH RISK ASSESSMENT (HHRA) NOTE NUMBER 3, DTSC-modified Screening Levels (DTSC-SLs)

The Human Health Risk Assessment (HHRA) Note Number 3, revised in May 2022, includes detailed information about the California Department of Toxic Substances Control (DTSC) development of modified screening levels based on the U.S. Environmental Protection Agency’s (USEPA) Regional Screening…