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    • Environmental Topics
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Air Topics

Learn how air pollution can harm your health and the environment, and what EPA is doing to protect the air we breathe.

Pollution & Air Quality

  • Acid Rain
  • Ozone Layer Protection
  • Visibility
  • Climate Change:
    • Climate Change Indicators including temperature and weather changes
    • Climate Change Research

Indoor Air

  • Asbestos
  • Indoor Air Quality
    • Volatile Organic Compounds (VOCs)
  • Mold
  • Radon
  • Wood Burning Appliances

Research

  • Air Research
    • Air Quality and Climate Change
  • Air Research Grants

Air Quality Management

  • AP – 42: Compilation of Air Emission Factors
  • Inventories and Emissions Factors
  • Technical Air Pollution Resources
  • Air Quality Management Process

Air Quality by Location

  • AirNow: Air Quality by Zip Code, City, or State
  • AirNow Fire and Smoke Map

Air Pollutants

  • Criteria (NAAQS) Air Pollutants
    • Carbon Monoxide (CO)
    • Lead (Pb)
    • Nitrogen Dioxide (NO2)
    • Ozone, Ground Level
    • Particulate Matter (PM)
    • Sulfur Dioxide (SO2)
  • Greenhouse Gas (GHG) Emissions
  • Hazardous Air Pollutants
  • Transportation Emissions

Data

  • Status and Trends of Key Air Pollutants
  • Air Quality Data Collected at Outdoor Monitors
  • Environmental Benefits Mapping and Analysis Program (BenMAP-CE)

What You Can Do

  • Carbon Footprint Calculator
  • Energy Star
    • About Energy Efficiency
  • Fuel Economy (MPG) Guide
  • Green Vehicle Guide
  • Indoor airPLUS

Laws and Regulations

  • Clean Air Act
    • ​The Plain English Guide to the Clean Air Act
  • National Ambient Air Quality Standards (NAAQS)
  • Regulatory Information by Topic: Air

EPA Offices and Programs

  • Office of Air and Radiation
  • Air, Climate, and Energy Research Program

Contact Us to ask a question, provide feedback, or report a problem.
Last updated on August 12, 2022
United States Environmental Protection Agency

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