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  2. NowCast (air quality index) - Wikipedia

    en.wikipedia.org/wiki/NowCast_(air_quality_index)

    PM 2.5 AQI of US monitors, calculated utilizing NowCast, courtesy US EPA PM2.5 AQI map, calculated utilizing NowCast, courtesy US EPA. The PM (particulate matter) NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 - particles less than 10 micrometers ...

  3. 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 ...

  4. How is AQI calculated? Here’s how you can monitor ... - AOL

    www.aol.com/news/aqi-calculated-monitor-local...

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  5. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    The most commonly used air quality index in the UK is the Daily Air Quality Index recommended by the Committee on the Medical Effects of Air Pollutants (COMEAP). [39] This index has ten points, which are further grouped into four bands: low, moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general ...

  6. Los Angeles gets 'F' grade for air quality once again in ...

    www.aol.com/news/los-angeles-gets-f-grade...

    Around 38.5 million California residents live in a county that received a failing grade in the Lung Assn.'s annual "State of the Air" report.

  7. 'Volatile conditions' prompt red flag warnings across ...

    www.aol.com/volatile-conditions-prompt-red-flag...

    A month after a devastating blaze in Southern California, red flag warnings have been issued across Los Angeles and parts of the region Monday as strong wind gusts could potentially cause ...

  8. South Coast Air Quality Management District - Wikipedia

    en.wikipedia.org/wiki/South_Coast_Air_Quality...

    The South Coast AQMD includes all of Orange County; and the non-desert regions of Los Angeles County, San Bernardino County, and Riverside County including the Coachella Valley. The South Coast Air Basin area encompassed by the South Coast AQMD amounts to about 10,750 square miles (27,850 square kilometres) and is the second most populated area ...

  9. How to understand the Air Quality Index - AOL

    www.aol.com/news/how-to-understand-the-air...

    The AQI uses a scale that typically ranges from zero to 500 to denote air quality. If your area has an AQI of 50 or below, you're in a green zone. If your area has an AQI of 50 or below, you're in ...