Smoke from wildfires burning in Canada is expected to create hazy skies and periods of unhealthy air quality across New York through Thursday, prompting state officials to urge residents to take precautions.
Governor Kathy Hochul issued an update Wednesday warning that wildfire smoke, combined with high temperatures, could lead to elevated levels of fine particulate matter pollution. The smoke is expected to move across the state throughout the day, with some areas experiencing temporary spikes in pollution levels.
“Distant wildfires have impacted New York State in recent years, and this week unfortunately will be no different with expected hazy skies and poor air quality,” Hochul said in a statement. “We are now closely tracking these conditions and I strongly encourage New Yorkers to stay informed and take appropriate precautions to stay safe. Sensitive groups should take particular caution.”
The New York State Department of Environmental Conservation has issued a Air Quality Health Advisory for Fine Particulates until midnight EDT tonight.
The Air Quality Index, or AQI, measures pollution levels on a scale from 0 to 500. Higher numbers indicate greater health risks.
An AQI above 100 can be unhealthy for sensitive groups, including older adults, young children, people with asthma or COPD, pregnant individuals, and outdoor workers. An AQI above 150 is considered unhealthy for everyone.
Health officials recommend residents take precautions if they notice smoky conditions or experience symptoms such as coughing, throat irritation, shortness of breath, or burning eyes.
Recommended steps include:
- Limiting outdoor activity, especially strenuous exercise
- Keeping windows and doors closed
- Running air conditioning systems on recirculate
- Using a HEPA air cleaner if available
- Wearing an N95 respirator when spending extended periods outdoors
- Checking on vulnerable neighbors
The state Department of Environmental Conservation and Department of Health monitor air quality using data from more than 50 monitoring sites across New York. Officials said advisories are issued when pollution levels are expected to exceed an AQI value of 100.
DEC Commissioner Amanda Lefton urged New Yorkers to stay aware of changing conditions.
“Air quality conditions, including elevated heat levels and impacts from Canadian wildfires, have resulted in conditions that may make certain activities difficult in the coming days for members of sensitive groups,” Lefton said.
State Health Commissioner Dr. James McDonald recommended limiting strenuous outdoor activity and said people with respiratory conditions or other health concerns should take extra precautions.
Residents can check local air quality, forecasts and conditions through AirNow Air Quality Information.
Image: Hazy skies outside the Radio Catskill studios in Liberty, NY, on July 15, 2026. (Tim Bruno)