Science & Technology

EPA Emission Standards for Light-Duty Vehicles and Trucks and Motorcycles

This page contains links to reference information for the Federal Emissions Standards of light-duty vehicles and engines.

Learn About Models at EPA

list of models used by EPA in water, health, air, climate change, land waste water management, research, ecosystems, pesticides and multimedia.

How Climate Change May Impact Ozone Pollution and Public Health through the 21st Century

EPA researchers conducted an extensive modeling study of the impacts of climate change on air quality in the United States and the implications for public health.

Wildfires: How Do They Affect Our Water Supplies?

Do wildfires impact water quality?

Five Hands-on Lesson Plans: Using Air Sensors to Teach About Air Quality

Check out the hands-on lesson plans designed by EPA scientists and collaborators to encourage air quality education in communities and classrooms.

Meet EPA Researcher Aderonke Adegbule, Ph.D.

Aderonke, or Addie, Adegbule’s research is focused on understanding how per- and polyfluoroalkyl substances (PFAS) impacts groundwater.

Keeping up with 3D Printing: EPA Researchers Build on New Plastic Emissions Study

This research plays an important part in EPA’s mission to protect human health and the environment by evaluating new and emerging materials as they enter the market.

CyAN Mobile App Helps Communities Detect Cyanobacteria in U.S. Water Bodies

EPA developed the Cyanobacteria Assessment Network mobile app, an early warning indicator system for algal blooms in U.S. freshwater systems, to help local water quality managers to proactively plan for cyanobacteria harmful algal blooms.

Meet EPA Scientist Jeff Szabo, Ph.D.

EPA scientist Jeff Szabo, Ph.D., has worked for the EPA’s National Homeland Security Research Center since 2005. He conducts and manages water security research projects at EPA’s Test and Evaluation facility.

Meet EPA Microbiologist Worth Calfee, Ph.D.

This is the researchers at work profile for EPA microbiologist Worth Calfee

Meet EPA Researcher Sarah Taft, Ph.D.

A profile on EPA researcher Sarah Taft, and overview of her science and interesting information about her

EPA Scientist Serves as Air Resource Advisor on the McKinney Fire Modeling Smoke and Air Quality

EPA scientist Dr. John Iiames traveled to Yreka, California, to lend his expertise in air quality and smoke modeling and serve as an Air Resource Advisor to the response team.

EPA is Moving Towards the Future of Chemical Assessments with New Approach Methods

EPA scientists are continuing to advance chemical safety research with the use of New Approach Methods. These methods provide information on chemical hazard and risk assessment while avoiding the use of intact animals.

The Burden of Air Pollution on the Heart

Air pollution can take a significant toll on the cardiovascular system. In a recent article, EPA researchers discuss strategies to reduce exposure and the health effects of air pollution.

2020 Science Matters Stories

Check out EPA Science Matters newsletter stories written in 2020.

EPA’s Dr. Johanna Nyffeler Awarded 2020 Young Researcher Lush Prize for Efforts to Limit Animal Testing

EPA Postdoctoral grantee Dr. Johanna Nyffeler, a computational toxicologist, is a Lush Prize 2020 Young Researcher winner.

EPA Releases Updated SeqAPASS – Version 5.0 – With Improved Functionality

EPA has released the fifth iteration of the Sequence Alignment to Predict Across Species Susceptibility (SeqAPASS) online tool, now equipped with improved functionalities that help users customize, interpret, and share SeqAPASS results.