State scientists are calling Saturday an air quality action day with Canadian wildfire smoke moving in across New Hampshire.

New York was hit with an air quality alert Saturday as smoke from Canadian wildfires drifted across the state, pushing levels ...

Montreal had the worst air quality in the world on Saturday as smoke from wildfires in the Prairies drifted east. In addition ...

While eastern parts of Canada are feeling the effects of wildfires in the prairies, leading to poor air quality, the coastal ...

An air quality alert for the Tri-State Area has been extended through the weekend due to smoke from the Canadian wildfires.

But when smoke plumes are close to the surface, people are breathing in wildfire chemicals and tiny particles. Those particles, known as PM2.5, can get deep into the lungs and exacerbate asthma and ...

An Air Quality Health Advisory has been issued for several counties in the Capital Region, according to the New York State Department of Health and Department of Environmental Conservation.

Massachusetts, New Hampshire, Vermont, Rhode Island, parts of Eastern New York, and Southern Maine are under air quality ...

State officials from Maine to New York issued alerts for fine particulate matter, a toxic byproduct of wildfires that is small enough to be inhaled.

As a large swath of Manitoba deals with heavy wildfire smoke polluting the air, others in the province are starting the weekend amidst suffocating heat and humid conditions. Environment and Climate ...

The air quality index (AQI) is predicted to be above 100 in much of New York state on Saturday, and could reach 135. Alerts ...

New York City faces an air quality alert on July 26, 2025, due to Canadian wildfire smoke, with an AQI of 100-135. Sensitive groups urged to stay indoors. Learn more., US News, Times Now ...