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  2. Chicago's air quality ranks among worst in the world - AOL

    www.aol.com/news/chicagos-air-quality-ranks...

    Canadian wildfires are once again taking a toll on the continental U.S., this time in the Midwest, where air quality alerts have been issued across the region. Chicago's air quality ranks among ...

  3. Code red air quality alerts as Canada wildfire smoke spreads ...

    www.aol.com/air-quality-live-updates-canada...

    People living in the Midwest and Northeast were warned of a worsening air quality index throughout the week due to smoke from the Canadian wildfires

  4. 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 ...

  5. 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 ...

  6. Air pollution in the United States - Wikipedia

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

    The strong relationship between AQI and ozone levels may be found on air pollution maps. [95] Air pollution in Los Angeles has caused widespread concerns. In 2012, the Public Policy Institute of California (PPIC) Survey on Californians and the Environment showed that 45% of citizens in Los Angeles consider air pollution to be a "big problem ...

  7. Biden urged to declare climate emergency as millions under ...

    www.aol.com/biden-urged-declare-climate...

    People living in the Midwest and Northeast were warned of a worsening air quality index throughout the week due to smoke from the Canadian wildfires

  8. Chicago air quality unhealthy as Canadian wildfire emissions ...

    www.aol.com/news/chicago-air-quality-unhealthy...

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