Science & Technology

Next Generation Emission Measurement (NGEM) Research for Fugitive Air Pollution

EPA is researching next generation technologies to detect and correct unanticipated emissions of air pollutants from leaks, industrial processes, and other sources.

Base Closure in New Mexico

Base closure information about Fort Wingate Depot Activity (FWDA)

EPA Region 4 to Review Cleanups at 55 Southeast Superfund Sites in 2026  

Release Date: December 4, 2025

Computational Toxicology and Exposure APIs: Clients

Client API packages have been developed to support access to the Computational Toxicology and Exposure APIs (CTX APIs)

Water Quality Standards: Regulations and Resources

Water Quality Standards are an important tool for restoring and maintaining healthy water quality for lakes, rivers and streams, estuaries, and other waters nationally and where you live.

Designation and NAAQS Information Related to PM-2.5 (2012 Standard)

Designation and NAAQS Information Related to PM-2.5 (2006 Standard)

Designation and NAAQS Information Related to PM-2.5 (1997 Standard)

Designation and NAAQS Information Related to PM-10 (1987 Standard)

Designation and NAAQS Information Related to 8-Hour Ozone (2008)

Designation and NAAQS Information Related to 8-Hour Ozone (1997 Standard) - NAAQS Revoked

Designation and NAAQS Information Related to Nitrogen Dioxide (1971 Standard)

Transportation, Air Pollution and Climate Change

Learn how emissions reductions, advancements in fuels and fuel economy, and working with industry to find solutions to air pollution problems benefit human and environmental health, create consumer savings and are cost effective.

State and Local Transportation Resources

This web area is designed to provide resources to state and local governments and their citizens about transportation and air quality.

Mobile Source Pollution and Related Health Effects

This site provides information on the health effects of air toxics from vehicles to both groups and individuals looking to further their subject knowledge, learn about EPA’s role in reducing air toxics, and find out how individuals can play a role.

United States 2030 Food Loss and Waste Reduction Goal

On September 16, 2015, the United States Department of Agriculture (USDA) and the United States Environmental Protection Agency (EPA) announced the first ever domestic goal to reduce food loss and waste by half by the year 2030.

National Aquatic Resource Surveys

EPA reports information on the condition of our nation's waters using probabilistic surveys. The National Aquatic Resource Surveys assess the status of and changes in water quality of the nation's coastal waters, lakes, rivers and streams, and wetlands.

NATA Limitations

Summary of the limitations of the 2005 NATA

NATA Overview

Background information about the National Air Toxics Assessment - what it is and how to use the data