Smoke from ongoing Canadian wildfires has spread across multiple US states, including New York, New Jersey, Iowa, New Hampshire, and Maine, prompting air-quality alerts. The fires have already led to the evacuation of 25,000 residents in Canada, and US officials are advising sensitive groups to limit outdoor activity due to unhealthy air.
Canadian wildfires prompt air-quality alerts across five US states
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TL;DR: Key points with love ❤️Smoke from ongoing Canadian wildfires has spread across multiple US states, including New York, New Jersey, Iowa, New Hampshire, and Maine, prompting air-quality alerts. The fires have already led to the evacuation of 25,000 residents in Canada, and US officials are advising sensitive groups to limit outdoor activity due to unhealthy air.
Trending- 1 Recent days: At least 25,000 residents in three Canadian provinces evacuated due to fires.
- 2 Tuesday: Iowa department of natural resources issued a statewide air-quality alert; New Hampshire officials declared an air-quality action day.
- 3 Wednesday (June 4, 2025): New York state department of environmental conservation issued an air quality advisory; New Jersey’s department of environmental protection issued a code orange air-quality alert; Maine’s department of environmental protection issued an air-quality alert.
- 4 Until Thursday: Air quality alerts in Iowa and Maine.
- Poor air quality
- Health advisories for sensitive groups
- Limiting strenuous outdoor physical activity
- Evacuations of 25,000 residents in Canada
What: Smoke from Canadian wildfires is causing poor air quality and prompting air-quality alerts across multiple US states.
When: Alerts issued on Wednesday (June 4, 2025) and Tuesday. Alerts set to last until Thursday in some areas. Wildfire season is ongoing.
Where: Canada (origin of fires), United States (affected states: New York, New Jersey, Iowa, New Hampshire, Maine), eastern seaboard, midwest, southern parts of the US.
Why: Dozens of wildfires burning across Canada, sparked by human and natural causes, are producing smoke that is carried by winds into the US.
How: Smoke plumes from wildfires are spreading, leading environmental protection agencies to issue advisories and alerts based on air pollution concentrations.