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Canadian wildfires spread as smoke prompts air quality alerts in 18 states

State officials said smoke from Canadian wildfires could cause haze and respiratory effects for unusually sensitive people throughout New Hampshire.

  • Wildfires in Canada are causing hazardous air quality across many U.S. states, with 18 states issuing air quality alerts due to smoke spreading from the fires, including Pennsylvania, Michigan, and New York.
  • Philadelphia issued a Code Purple air quality alert, meaning the air is very unhealthy to breathe, and officials advised residents to stay indoors, wear N95 masks outside, and limit outdoor activities.
  • Health experts warn that combined exposure to extreme heat and poor air quality from wildfire smoke increases risks of respiratory and cardiovascular problems, especially for vulnerable groups.
  • Officials urge people to keep indoor air clean, reduce outdoor activity, use HEPA filters, and seek medical help if symptoms worsen as wildfires remain active and climate change exacerbates the problem.
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Santa Maria TimesSanta Maria Times
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Independent EspañolIndependent Español
Center

NEW YORK (AP) — Millions of people in the Great Lakes region, in the northeastern states and on the east coast of the United States endured another day of unhealthy air on Friday due to wildfires outside...

·Calhoun, United States
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Lean Left

Canadian sites continue to burn and smoke has reached some parts of the U.S. Even, several states have air quality alerts in place.

·Los Angeles, United States
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Hamilton Journal-NewsHamilton Journal-News
+9 Reposted by 9 other sources
Center

Wildfire smoke from Canada and Minnesota pushes farther into the US and engulfs DC in haze

Millions of people in the Great Lakes, Northeast and Mid-Atlantic states are muddling through another day of unhealthy air from uncontrolled wildfires in Minnesota and Canada. The nation’s capital was

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nhpr broke the news in Concord, United States on Tuesday, July 14, 2026.
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