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  • State of the Air - American Lung Association
    Learn how where you live measures up when it comes to air pollution, smog and soot from the annual report that the American Lung Association released on air pollution across the U S
  • Clean Air Act Standards and Guidelines for the Metals . . .
    Stationary sources of air pollution for metal production industries, and their corresponding air pollution regulations
  • Air Pollution and Your Health | National Institute of . . .
    Air pollution is a familiar environmental health hazard We know what we’re looking at when brown haze settles over a city, exhaust billows across a busy highway, or a plume rises from a smokestack Some air pollution is not seen, but its pungent smell alerts you
  • Air pollution is still a problem for nearly half of Americans . . .
    Millions of Americans are still breathing in unhealthy air, despite long-term progress toward cleaning up many sources of pollution, according to the 2025 State of the Air report
  • Transportation, Air Pollution and Climate Change - US EPA
    Learn about smog, soot, ozone, and other air pollution, as well as EPA programs to reduce them Key issues, websites and programs related to transportation, air pollution and climate change or use the A-Z index to find the information you are looking for
  • Smog - National Geographic Society
    Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere Nitrogen oxides come from car exhaust, coal power plants, and factory emissions VOCs are released from gasoline, paints, and many cleaning solvents
  • Mapping Soot and Smog Pollution in the United States
    Under the Clean Air Act, the U S Environmental Protection Agency must set standards that protect public health from common air pollutants, such as fine particulate matter (also known as soot) and ground-level ozone (also known as smog)


















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