Forest fires burning in northwestern Ontario are affecting air quality in Toronto.

Shortly after 5 a.m. Monday, July 26, Environment Canada and the Province of Ontario issued a special air quality statement for the city of Toronto.

According to the national weather agency and the provincial government, “high levels” of air pollution are possible in the city due to wildfire smoke.

They said air quality could deteriorate if it descends to ground level.

Environment Canada and the Province are urging anyone who is exposed to smoke to take extra precautions as it is a “constantly changing mixture of particles and gases, which includes many chemicals that can be harmful to your health.”

Some of the symptoms people could experience include increased coughing, throat irritation, headaches or shortness of breath.

“Children, seniors and those with cardiovascular or lung disease, such as asthma, are especially at risk," the alert said.