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  2. Los Angeles air quality improves from wildfires' hazardous levels

    www.aol.com/news/los-angeles-air-quality...

    Moderate air quality is between 51 and 100, or in the yellow band of the AQI scale. Air quality in the moderate range can still be risky for people who are unusually sensitive to air pollution.

  3. Why air quality is worse when it's really hot - AOL

    www.aol.com/news/why-air-quality-worse-really...

    The U.S. has a measurement system for air quality called the air quality index (AQI). The AQI has six color-coded categories with a value system that runs from zero to 500. The higher the level of ...

  4. Why is air quality so bad in Sacramento in the winter? Here’s ...

    www.aol.com/why-air-quality-bad-sacramento...

    Air quality is measured using the air quality index, also referred to as AQI. It’s calculated daily unless there is an extreme condition, such as a wildfire, that causes it to be updated more often.

  5. Pollution in California - Wikipedia

    en.wikipedia.org/wiki/Pollution_in_California

    A view of Los Angeles covered in smog. Pollution in California relates to the degree of pollution in the air, water, and land of the U.S. state of California.Pollution is defined as the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a faster rate than it can be dispersed, diluted, decomposed, recycled, or ...

  6. Air pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_the...

    Looking down from the Hollywood Hills, with Griffith Observatory on the hill in the foreground, air pollution is visible in downtown Los Angeles on a late afternoon.. Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems.

  7. Mosquito Fire - Wikipedia

    en.wikipedia.org/wiki/Mosquito_Fire

    Mosquito Fire A pyrocumulonimbus cloud rises from the Mosquito Fire on September 8, 2022 Date(s) September 6 (6-09) – October 22, 2022 (2022-10-22) (47 days) Location Placer County and El Dorado County, Northern California, United States Coordinates 39°00′22″N 120°44′42″W  /  39.006°N 120.745°W  / 39.006; -120.745 Statistics Burned area 76,788 acres (31,075 ha; 120 sq mi ...

  8. Firefighters battling LA fires as rain expected to come soon

    www.aol.com/news/firefighters-continue-battling...

    As an air-quality alert went into effect in areas of San Diego, red flag warnings in Los Angeles and Ventura counties ended mid-morning on Friday, when forecasters said wind gusts that had been as ...

  9. Why is the air quality bad today? 'Very unhealthy' air ... - AOL

    www.aol.com/why-air-quality-bad-today-135549984.html

    When there's an increase in a type of pollutant, the AQI will increase. For example, AQI can increase during rush hour traffic when there's an increase in air pollutants, or when winds blow smoke ...