Science & Technology

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-12), Final, April, 1992

Appendix V lists the parameters and criteria that produce a "J" flag in accordance with the National Functional Guidelines for Organic Data Review (EPA 1991e) and Laboratory Data Validation Functional Guidelines for Inorganics Analyses (EPA 1988e)

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.

ECO Update Bulletin Series

bulletin series on ecological risk assessment of superfund sites

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

Partnering to Share EPA Expertise Around the World through the Embassy Science Fellows Program

EPA scientists participate in the Department of State's Embassy Science Fellowship program to share their expertise around the world.

Memorandum: Response To Ecological Risk Assessment Forum Request For Information On the Benefits of PCB Congener-Specific Analyses

As a prelude to the discussion of the benefits of congener-specific analysis, it is useful to briefly review the history of the domestic and global production and use of PCBs.

Other Carcinogenic Polycyclic Aromatic Hydrocarbons

List of carcinogenic polycyclic aromatic hydrocarbons (PAHs) other than benzo[a]pyrene

Guidance for Data Useability in Risk Assessment (Part A-14), Final, April, 1992

Summary of common laboratory contaminants, concentration requirements, and risk assessment implications

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)

Role of the Baseline Risk Assessment in Superfund Remedy Selection Decisions

The purpose of this memorandum is to clarify the role of the baseline risk assessment in developing Superfund remedial alternatives and supporting risk management decisions.

How Science is Protecting the Air We Breathe

History of EPA Air research

Guidance for Data Useability in Risk Assessment (Part B-3), Final, May, 1992

This chapter discusses data useability criteria and preliminary sampling and analysis issues.

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

Represenative sampling guidance document, volume 3: biological

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 A-6), Final, April, 1992

Assessment of environmental data for useability in baseline risk assessment

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

Planning for 100 percent completeness for critical samples

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.

Study Explores Ways to Improve Accuracy of Air Sensors

EPA scientists are working to improve the accuracy of air sensors by generating mathematical equations to ‘correct’ the sensor data.

Guidance for Data Useability in Risk Assessment (Part A-8), Final, April, 1992

The purpose of appendix I is to familiarize the reader with a model for data review deliverables.