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  2. List of least-polluted cities by particulate matter concentration

    en.wikipedia.org/wiki/List_of_least-polluted...

    For instance, some places like Africa and South America lack air pollution reporting tools, so their pollution levels are probably not reflected in this list. Moreover, many cities from a certain country are featured in the list may only mean that they have large and wide air pollution monitoring networks, which may or may not be an indicator ...

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

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

    The air quality in Chicago has reached unhealthy levels as the city is affected by the smoke coming from the wildfires in Canada, where record-beating emissions are leading to the smoke travelling ...

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

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

    Chicago had the worst air quality in the world Tuesday, according to IQAir.com, a tracking service. The city's air quality index is in the "very unhealthy" category for all age groups, reminiscent ...

  5. List of most-polluted cities by particulate matter concentration

    en.wikipedia.org/wiki/List_of_most-polluted...

    The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively). [1 ...

  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. Mayor Brandon Johnson announces plans to address pollution ...

    www.aol.com/weather/mayor-brandon-johnson...

    A year after federal investigators outlined how Chicago funnels industrial polluters into Black and Latino neighborhoods, Mayor Brandon Johnson vowed Monday to overhaul zoning, planning and land ...

  8. Neighbors for Environmental Justice - Wikipedia

    en.wikipedia.org/wiki/Neighbors_for...

    The Chicago Environmental Justice Network (CEJN) [12] is a community-based environmental justice coalition based on Chicago's South and West Sides. CEJN has a proposed mission of remediating environmental concerns, such as pollution, in Chicago residential areas. CJEN is affiliated with other local environmental justice organizations which are ...

  9. Chicago stargazers find more light pollution and wildfires ...

    www.aol.com/weather/chicago-stargazers-more...

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