Science & Technology

Guidance for Data Useability in Risk Assessment (Part B-7), Final, May, 1992

Glossary of radiation concepts, teminology and units, radioactive substances in the environment, epa radiation program staff

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

This document provides guidance on the process of designing and conducting technically defensible ecological risk assessments for the Superfund Program.

Ecological Risk Assessment and Risk Management Principles for Superfund Sites (October 1999)

Remedy Selection and Decisions

Exposure Parameters

Compilation of current USEPA exposure parameters for computation of age-specific values in exposure estimates.

Guidance for Data Useability in Risk Assessment (Part A-15), Final, April, 1992

USEPA contract laboratory program statement of work for organic analysis multi-media, multi concentration

Guidance for Data Useability in Risk Assessment (Part A-3), Final, April, 1992

This chapter is an overview of the data collection and evaluation issues that affect the quality and useability of baseline human health risk assessments. Ecological risk assessment is not discussed in this guidance.

Guidance for Data Useability in Risk Assessment (Part A-11), Final, April, 1992

Appendix IV provides calculation formulas to enable responsible risk assessment personnel to determine the minimum number of samples necessary to meet statistical performance objectives.

Guidance for Data Useability in Risk Assessment (Part A-5b), Final, April, 1992

Planning for 100 percent completeness for critical samples

Guidance for Data Useability in Risk Assessment (Part A-9), Final, April, 1992

Appendix II identifies seven industries that generate waste which contains pollutants that are known to pose human and environmental hazards.

Guidance for Data Useability in Risk Assessment (Part B-8), Final, May, 1992

Radioactive substances in the environment

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

A literature search is conducted to obtain information on contaminants of concern, their potential ecological effects, and species of concern.

Guidance for Data Useability in Risk Assessment (Part B-4), Final, May, 1992

This chapter provides guidance to the RPM and the risk assessor for designing an effective sampling plan and selecting suitable analytical methods to collect environmental data for use in baseline risk assessments.

The Role of Screening-Level Risk Assessments and Refining Contaminants of Concern in Baseline Ecological Risk Assessments, June, 2001

This supplemental ecological risk assessment (ERA) guidance is intended to provide further clarification and direction regarding screening level ecological risk assessments (SLERAs)

Using Toxicity Tests in Ecological Risk Assessment

Toxicity tests are used to expose test organisms to a medium-water, sediment, or soil-and evaluate the effects of contamination on the survival, growth, reproduction, behavior and or other attributes of these organisms.

Withdrawal of the January 15, 2009, OSWER Guidance Entitled "Interim Recommended Trichloroethylene (TCE) Toxicity Values to Assess Human Health Risk and Recommendations for the Vapor Intrusion Pathway Analysis

The agency is withdrawing this guidance to further evaluate the recommendations regarding the non-cancer TCE toxicity value for use in risk assessments of inhalation exposures.

Role of Background in the CERCLA Cleanup Program

This document clarifies the U.S. Environmental Protection Agency (EPA) preferred approach for the consideration of background constituent concentrations of hazardous substances, pollutants, and contaminants in certain steps of the remedy selection process