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  2. National Ambient Air Quality Standards - Wikipedia

    en.wikipedia.org/wiki/National_Ambient_Air...

    Contents. National Ambient Air Quality Standards. The U.S. National Ambient Air Quality Standards (NAAQS, pronounced / ˈnæks / naks) are limits on atmospheric concentration of six pollutants that cause smog, acid rain, and other health hazards. [ 1 ] Established by the United States Environmental Protection Agency (EPA) under authority of the ...

  3. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    Indoor air quality (IAQ) is the air quality within buildings and structures. Poor indoor air quality due to indoor air pollution is known to affect the health, comfort, and well-being of building occupants. It has also been linked to sick building syndrome, respiratory issues, reduced productivity, and impaired learning in schools.

  4. Clean Air Act (United States) - Wikipedia

    en.wikipedia.org/wiki/Clean_Air_Act_(United_States)

    The Clean Air Act (CAA) is the United States' primary federal air quality law, intended to reduce and control air pollution nationwide. Initially enacted in 1963 and amended many times since, it is one of the United States' first and most influential modern environmental laws. As with many other major U.S. federal environmental statutes, the ...

  5. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    e. Air pollution is the contamination of air due to the presence of substances called pollutants in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials. [ 1 ] It is also the contamination of the indoor or outdoor environment either by chemical, physical, or biological ...

  6. “SNL” Addresses Hoda Kotb's Departure from the ... - AOL

    www.aol.com/lifestyle/snl-addresses-hoda-kotbs...

    Related: SNL Stars Who Only Lasted One Season, and Where They Are Now Elsewhere in the show, the cold open saw Vice President Kamala Harris portrayed by Maya Rudolph, while Jim Gaffigan appeared ...

  7. I’ve tried the best coffee from around the world. I still don’t like it. I’ve tried the best coffee from around the world. I still don’t like it. Editor’s Note: This is part of an ...

  8. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Air conditioning, often abbreviated as A/C (US) or air con (UK), [ 1 ] is the process of removing heat from an enclosed space to achieve a more comfortable interior temperature (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling the humidity of internal air. Air conditioning can be achieved using a ...

  9. Clean Water Act - Wikipedia

    en.wikipedia.org/wiki/Clean_Water_Act

    The Clean Water Act (CWA) is the primary federal law in the United States governing water pollution. Its objective is to restore and maintain the chemical, physical, and biological integrity of the nation's waters; recognizing the responsibilities of the states in addressing pollution and providing assistance to states to do so, including ...