Learn the Issues

2023 Safer Choice Partner of the Year Awards Ceremony and Partner and Stakeholder Summit

Event and registration information for EPA's Safer Choice Partner of the Year Awards Ceremony and Partner Stakeholder Summit 2022

First Integrated Urban Air Toxics Report to Congress

Information about the first Integrated Urban Air Toxics Report to Congress released in July 2000

Chlorophyll allows plants (including algae) to photosynthesize, i.e., use sunlight to convert simple molecules into organic compounds. Chlorophyll a is the predominant type of chlorophyll found in green plants and algae.

Indicators: Benthic Macroinvertebrates

Benthic (meaning “bottom-dwelling”) macroinvertebrates are small aquatic animals and the aquatic larval stages of insects. Benthic macroinvertebrates are commonly used as indicators of the biological condition of waterbodies.

Webinar - New Mobility Mindsets: On-Demand Transit

Recording, slides, and Q & A from a November 2020 webinar about on-demand transit policies and programs in general, and in Dallas and Ohio in particular.

Sulfur Dioxide Basics

Sulfur dioxide (SO2) is one of a group of highly reactive gasses known as “oxides of sulfur," and are emitted into the air as result of fossil fuel combustion and other industrial processes.

SEMS Search User Guide

Superfund is a program administered by the EPA to locate, investigate, and clean up the worst hazardous waste sites throughout the United States.

EPA Order 3120.5 POLICY AND PROCEDURES FOR ADDRESSING RESEARCH MISCONDUCT

EPA Order on misconduct

EPA Order 1000.17 on Policy and Procedures of Protection of Human Research Subjects in EPA Conducted or Supported Research

This Order supersedes EPA Order 1000.17 Policy and Procedures on Protection of Human Subjects, July 30, 1999 including changes thereto, and establishes EPA responsibilities and policies for the use of human subjects in research.

2017 Federal Green Challenge Award Winners in the Pacific Southwest Region

2017 Federal Green Challenge (FGC) Award Winners in EPA's Pacific Southwest, Region 9.

Baselines for Hazardous Waste Cleanup Program Facilities

This page discusses corrective action facilities, how they vary, the various lists of baseline facilities and associated historical documents.

Fact Sheet on Safe Hazardous Waste Recycling

A basic overview of hazardous waste recycling activities, including combustion for energy recovery, use constituting disposal, reclamation, and direct use and reuse.

Guidance for Cleaning Up Groundwater, Soil and Air at Hazardous Waste Cleanup Facilities

This is a collection of resources that provide guidance on how to manage media-specific contamination at corrective action facilities. These are places the experience leaks of hazardous waste

Learn about Hazardous Waste Cleanups

Defines the hazardous waste cleanup process under the Resource Conservation and Recovery Act (RCRA)

Fiscal Year 2024 DWSRF BIL LSLR Allotments

FY24 BIL LSLR allotments memorandum May 2024

GreenChill Best Practices Guidelines: Commercial Refrigeration Retrofits, August 2011

GreenChill's mission in developing this document is to assist food retailers with an orderly, low-cost transition option from HCFC-22 to a substitute refrigerant.

GreenChill Best Practices Guidelines: Commercial Refrigeration Retrofits

GreenChill Best Practices Guideline: Commercial Refrigeration Leak Prevention & Repairs

Best practices for leak prevention and repair in the commercial refrigeration sector.

GreenChill Store Certification Protocol for Sub-Cooling Contained on Racks Separate from Refrigeration Equipment

Document describes the protocol used to determine the total load and refrigerant charge of stores that have placed all sub-cooling on a rack separate from all other commercial refrigeration equipment.