Human Health Toxicity Values in Superfund Risk Assessments

This memorandum revises the hierarchy of human health toxicity values generally recommended for use in risk assessments, originally presented in Risk Assessment Guidance for Superfund Volume I, Part A.

• Human Health Toxicity Values in Superfund Risk Assessments (pdf) (225.25 KB)
  This memorandum revises the hierarchy of human health toxicity values generally recommended for use inr isk assessments, originally presented in Risk Assessment Guidance for Superfund Volume I, Part A.