Air quality plummets in 20 states as smoke from Canadian wildfires spreads across the US
Smoke from Canadian wildfires has triggered air quality alerts in over 20 US states, with conditions reaching 'hazardous' levels in parts of the Midwest. Authorities are advising millions of residents to limit outdoor activities as the haze spreads.
Why it matters
The scale of the smoke dispersion highlights the cross-border impact of climate-related natural disasters on public health.
The New York City skyline is blanketed by wildfire smoke, as seen from Newport, New Jersey, on 16 July 2026. The New York City skyline is blanketed by wildfire smoke, as seen from Newport, New Jersey, on 16 July 2026. US news Air quality plummets in 20 states as smoke from Canadian wildfires spreads across the US Millions of Americans face air quality alerts from Minnesota to New York as authorities urge people to stay indoors
The reporting focuses on data from government agencies and environmental monitoring, maintaining a neutral tone.
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