Science & Technology

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.

Guidance for Data Useability in Risk Assessment (Part A-2), Final, April, 1992

This guidance was developed by the U.S. Environmental Protection Agency (EPA) for remedial project managers (RPMs), risk assessors, and contractors.

Region 9: Risk Assessment Contacts

Region 9 public points of contact and ORD's research publications related to risk assessment.

Meet Aimen Farraj, Ph.D., DABT

Profile of Aimen Farraj, Principal Investigator/Research Biologist of the Cardiopulmonary and Immunotoxicology Branch of the Environmental Public Health Division at the EPA.

Study Assesses Long-Term Capabilities of Air Sensors

There are still many uncertainties about the operating and performance capabilities of low-cost air sensors.

Study Examines if Long-Term Exposure to Ozone Impacts the Cardiovascular System

An EPA study, called MESA Air Next Stage, looks at the relationship between ground level ozone and the changes over time in the health of arteries that feed both the brain and heart.

The Links Between Air Pollution and Childhood Asthma

The estimated six million children in the United States with asthma are especially vulnerable to air pollution. Read about three recent EPA studies on the link between childhood asthma and air pollution.

Understanding Indoor Air Quality During Wildfires

After wildfire smoke impacted the city of Missoula, Montana in the summer of 2017, the local health department was inundated with inquiries about the risks of smoke, actions to take, and how to create clean air spaces indoors.

Advancing Technology to Study the Toxicity of Wildfire Smoke

In a laboratory in Research Triangle Park, NC, researchers built a tube furnace system to precisely generate different types of smoke to assess how fuel composition and combustion conditions affect the chemistry and subsequent toxicity of biomass smoke.

Studies Advance Air Monitoring During Wildfires and Improve Forecasting of Smoke

This summer EPA researchers are tackling smoke issues from wildfires.