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Coverage dated July 30, 2025 to August 3, 2025

Canada wildfires prompt air quality warnings for Upper Midwest, Northeast

Headline from ABC 7 Los Angeles, on the newest of 2 developments

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast into Tuesday.

ABC 7 Los Angeles's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Developments in this update

2 dated developments, oldest first, newest marked. Each is named by one outlet's own headline; open its reports to see every outlet that covered it.

  1. Smoke from Canadian wildfires brings unhealthy air to large swaths of the Midwest

    Headline from Phys ·

  2. Newest

    Canada wildfires prompt air quality warnings for Upper Midwest, Northeast

    Headline from ABC 7 Los Angeles ·

1 report not tied to one development ·

Read the reports

Reports & sources

29 articles, oldest first.

  1. Newsweek

    Canadian wildfires map shows three US states warned about air quality (opens Newsweek)

    Published

    Newsweek's feed description

    The elevated levels of fine particulate matter resulting from wildfire smoke could present significant health risks.

  2. Scientific American

    Wildfire Smoke from Canada Blankets U.S. Midwest in Haze of Bad Air Quality (opens Scientific American)

    Published

    Scientific American's feed description

    Winds from the northwest are blowing cool, dry air—but also wildfire smoke—into the U.S. Midwest from Canada

  3. New York Post

    Chicago, Minneapolis smothered with worst air quality in world as Canadian wildfire smoke returns (opens New York Post)

    Published

    New York Post's feed description

    Canadian wildfires sent vast amounts of smoke into the upper Midwest and northeast.

  4. Bangor Daily News

    Smoke from Canadian wildfires brings unhealthy air to large swaths of the Midwest (opens Bangor Daily News)

    Published

    Bangor Daily News's feed description

    Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at least the third day.Air quality

  5. Forbes

    Air Quality Plummets In Minneapolis And Chicago Amid Canadian Wildfires (opens Forbes)

    Published

    Forbes's feed description

    Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

  6. New Hampshire Union Leader

    Canada wildfires worsen air quality across Midwest, Northeast US (opens New Hampshire Union Leader)

    Published

    New Hampshire Union Leader's feed description

    Smoke and grit from hundreds of forest fires have spread across large parts of Canada and the northern U.S., sending air quality across the Midwest and northeast U.S. and Toronto

  7. NBC News

    Unhealthy air quality from Canadian wildfires plagues Midwest and Northeast (opens NBC News)

    Published

    NBC News's feed description

    An air quality advisory was sent out to New Yorkers for Monday, when smoke from wildfires in Canada is expected to reach the state

  8. Al Jazeera

    Canadian wildfire smoke triggers air quality alerts in US (opens Al Jazeera)

    Published

    Al Jazeera's feed description

    Blazes across several Canadian provinces and territories pose health risks to Canadians and their southern neighbours.

  9. Wyoming Public Media

    Canada wildfires cause poor air quality in the midwest and northeast U.S. (opens Wyoming Public Media)

    Published

    Wyoming Public Media's feed description

    Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada. People are advised to limit outdoor exposure.

  10. ABC 7 Los Angeles

    Canada wildfires prompt air quality warnings for Upper Midwest, Northeast (opens ABC 7 Los Angeles)

    Published

    ABC 7 Los Angeles's feed description

    Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast into Tuesday.

  11. Fox10 Phoenix

    Today's air quality among worst globally in Midwest, Northeast (opens Fox10 Phoenix)

    Published

    Fox10 Phoenix's feed description

    Smoke from ongoing Canadian wildfires has led to some of the worst air quality in the world across parts of the U.S.

  12. The Hill

    Canadian wildfire smoke hangs over Midwest, Northeast US, causing poor air quality (opens The Hill)

    Published

    The Hill's feed description

    Parts of the Midwest and Northeast are experiencing poor air quality Monday as smoke from Canadian wildfires drifts into the U.S. The National Oceanic and Atmospheric Administration (NOAA) said Monday in a social media post that “#Smoke from Canadian #wildfires is continuing to bring #AirQuality Ale…

  13. CBS News

    Air quality maps show how Canadian wildfire smoke is affecting Midwest, Northeast (opens CBS News)

    Published

    CBS News's feed description

    Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

  14. Latin Times

    Air Quality Map Reveals Which US States Canadian Wildfire Smoke is Hitting The Hardest (opens Latin Times)

    Published

    Latin Times's feed description

    The summer of 2025 has brought some of the worst air quality ever recorded to large parts of the United States. Cities across the Midwest and Northeast—especially Chicago, Detroit, Cleveland, New

Identical headlines usually mean shared wire copy. They are counted as separate articles but are not independent confirmation.

Canada wildfires prompt air quality warnings for Upper Midwest, Northeast | Since Then