Science & Technology

StreamCat Metrics and Definitions

The Stream-Catchment (StreamCat) dataset is an extensive collection of landscape metrics for 2.6 million streams and associated catchments within the conterminous U.S.

Level III and IV Ecoregions by State

Information and links to downloadable maps and datasets for Level III and IV ecoregions, listed by state. Ecoregions are areas of general similarity in the type, quality, and quantity of environmental resources.

Lead

Learn about the health effects of lead, who is at risk, how to test for lead in paint or other areas of your home, how to find or become a lead-safe certified firm, and more about the Lead Renovation Repair and Painting (RRP) rule.

What is the National Rivers and Streams Assessment?

The National Rivers and Streams Assessment (NRSA) is a statistical survey of the condition of our Nation’s rivers and streams.

Emissions Trading

Learn about emissions trading programs, also known as cap and trade programs, which are market-based policy tools for protecting human health and the environment by controlling emissions from a group of sources.

Air, Climate, & Energy Research Webinar Series

This page provides information on a Webinar Series for Air, Climate, and Energy Research Topics that include information on monitoring, measurement, modeling, health effects and environmental effects of air pollutants.

Small Drinking Water Systems Webinar Series

Schedule for EPA's Office of Research and Development and Office of Water's monthly webinar series: challenges and treatment solutions for small drinking water systems. Certificates of attendance offered for each webinar.

U.S. Department of Energy, National Renewable Energy Laboratory: IT Sustainability Case Study

Environmental Topics

EPA's resources on environmental issues include research, basics, what you can do, and an index covering more specific terms.

Cherokee County National Priorities List (NPL) Superfund Site, Cherokee County, Kansas - Fact Sheet, January 2023

Community Update - Sixth Five-Year Review Summary

Interim Final Brownfields Quality Assurance Project Plan Template

March 2001 Brownfields quality assurance project plan template, a generic format to be used for generating a QAPP for Brownfields pilot projects in Region 3 and an addendum to the template.

Benefits Reports for Air Pollution Regulations

This page contains links to information supporting benefits analyses prepared by OAQPS.

Supply Chain Guidance

Find information on the steps an organization can take to reduce their supply chain emissions.

EPA EcoBox Tools by Effects

Eco-Box is a toolbox for exposure assessors. Its purpose is to provide a compendium of exposure assessment and risk characterization tools that will present comprehensive step-by-step guidance and links to relevant exposure assessment data bases

IRIS Public Science Meeting (Oct 2016)

This September 2016 public meeting is made available to solicit comments on the public comment draft of the IRIS Assessment of ETBE.

Exposure Factors Handbook Chapter 3

Exposure Factors Handbook: 2011 Edition, Chapter 3:Ingestion of Water and Other Select Liquids. This update of chapter 3 provides newinformation on various physiological and behavioral factors commonly used in assessing exposure to environmental chemicals.