Toxicity Criteria for Other Analytes Evaluated in Human Health Risk Assessments, Screening-Levels, and Remediation-Goal Calculations

On September 4, 2018, the Toxicity Criteria for Human Health Risk Assessments, Screening Levels, and Remediation Goals rule was approved by the Office of Administrative Law and became immediately effective.  Please refer to the Department of Toxics Substances Control, Human Health Risk (HERO) program for more information.

OEHHA information on California Human Health Screening Levels is provided for historical purposes only. For chemical-specific screening levels for use in assessing contaminated sites, please refer to (DTSC HERO).