An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Environmental Topics

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

  • Air:
    • pollutionand your impact
    • indoor air issues like asbestos
    • air quality research and data
    • emissions,greenhouse gases
  • Chemicals and Toxics:
    • formaldehyde, mercury,other substances
    • how EPA handles spills
    • safer chemicals, TSCA
    • databases such as IRIS and SRS
  • Environmental Information by Location:
    • conditions in your state or community
    • nearby facilities or cleanup sites
  • Greener Living:
    • sustainable energy
    • transportation choices
    • food waste and recycling
    • homeand business
  • 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