Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals and Toxics
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Pesticides
    • Radon
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • EPA Administrator
    • Organization Chart
    • Staff Directory
    • Planning, Budget, and Results
    • Jobs and Internships
    • Headquarters Offices
    • Regional Offices
    • Lab and Research Centers
Contact Us

Environmental Topics

Find the most popular pages in your topic of interest, or search the A-Z index for specific terms.

  • Air:
    • pollution and your impact
    • indoor air issues like asbestos
    • air quality research and data
    • emissions, greenhouse gases
  • Climate Change:
    • effects of climate change
    • reducing your impact
    • data, reports, and tools
    • key indicators
  • Chemicals and Toxics: 
    • formaldehyde, mercury, other substances
    • how EPA handles spills
    • safer chemicals, TSCA
    • databases such as IRIS and SRS
  • Location-Specific Information:
    • conditions in your state or community
    • nearby facilities or cleanup sites
  • Greener Living:
    • sustainable energy
    • transportation choices
    • food waste and recycling
    • home and business
  • Narrower Topics
    • Bed Bugs
    • Lead
    • ​Mold
    • ​Pesticides
    • Radon
    Health:
    • effects of common pollutants
    • risk and exposure studies
    • asthma, children in school buildings
  • Land, Waste, and Cleanup:
    • landfills
    • hazardous waste
    • plastic and waterways
    • superfund, cleanups
  • Science:
    • methods, modeling, data and tools
    • research grants and opportunities
  • Water:
    • drinking water quality
    • watersheds and rivers
    • wastewater, stormwater, runoff
    • infrastructure finance and resilience
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 19, 2022
United States Environmental Protection Agency

Discover.

  • Accessibility
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data.gov
  • Inspector General
  • Jobs
  • Newsroom
  • Open Government
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.