Science & Technology

Guidance for Data Useability in Risk Assessment (Part A-17), Final, April, 1992

Glossary

Guidance for Data Useability in Risk Assessment (Part B-6), Final, May, 1992

This chapter discusses the application of radioanalytical data for risk assessment. Guidance is provided for reviewing data for consistency and completeness

Frequently Asked Questions (FAQs) About Update of Standard Default Exposure Factors

list of FAQs concerning OSWER's default exposure factors

Guidance on Risk Characterization for Risk Managers and Risk Assessors

This memorandum provides guidance for managers and assessors on describing risk assessment results in EPA reports, presentations, and decisions packages.

The Role Of Natural Resource Trustees In The Superfund Process

The comprehensive environmental response, compensation and liability act (CERCLA), as amended by the superfund amendments and reauthorization act (SARA)

Relative Potency Factors for Carcinogenic Polycyclic Aromatic Hydrocarbons (PAHs)

Relative potency factors of selected PAH based on mouse skin carcinogenesis

Guidance for Data Useability in Risk Assessment (Part A-4b), Final, April, 1992

Exhibit 25 Summary of most frequently occuring checmicals of potential concern by industry

Ecological Risk Assessment Guidance for Superfund: Process for Designing and Conducting Ecological Risk Assessments, Appendix A, June, 1997

Example ecological risk assessments for hypothetical sites

Ecological Risk Assessment Guidance for Superfund: Process for Designing and Conducting Ecological Risk Assessments, Step 5-glossary, June, 1997

The primary purpose of field verification of the sampling plan is to ensure that the samples specified by the SAP actually can be collected.

Guidance for Comparing Background and Chemical Concentrations in Soil for CERCLA Sites

Guidance for Comparing Background and Chemical Concentrations in Soil for CERCLA Sites - EPA 540-R-01-003, OSWER 9285.7-41, September 2002

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.

Role of the Ecological Risk Assessment in the Baseline Risk Assessment

I want to emphasize the importance of selecting remedies at Superfund sites that are protective of the environment as well as human health.

Ecotox Thresholds 1996

This bulletin provides an overview of the development and use of Ecotox Threshold (ET) benchmark values in Superfund ecological risk assessments (ERAs)

Guidance for Data Useability in Risk Assessment (Part A-7), Final, April, 1992

This chapter provides guidance for integrating the assessment of data useability to determine the overall level of uncertainty of risk assessment.

Ecological Assessment of Superfund Sites: An Overview

ECO Updates are a series of intermittent bulletins intended to facilitate ecological assessment of Superfund sites.

Selecting and Using Reference Information in Superfund Ecological Risk Assessments

Reference information, as used in this Bulletin, is data of a comparative nature needed by investigators to evaluate the environmental condition of a Superfund site.

Transmittal of Interim Bulletin Volume 1, Number 1 "Supplemental Guidance to RAGS: Calculating the Concentration Term", June 22, 1992

A quality action team (QAT) was initiated at the annual Superfund Risk Assessment Meeting in March, 1991, specifically to address the problem of calculating the concentration term for use in Superfund exposure assessment.