Environment Canada has issued a special air quality statement for Toronto and the rest of the GTA, as hot and humid weather conditions create high levels of pollution.
In a statement issued Tuesday night, the agency said “high levels of air pollution have developed.”
“Heat and sun conditions have led to an increase in ground-level ozone concentrations,” the statement said.
The agency said the values of the “high-risk” air quality health index are expected to persist for an hour or two and that higher levels of pollution may persist locally. tonight.
The statement, which culminates on the first official day of the summer, is in effect in Toronto, York, Durham, Peel, Halton, Hamilton, Niagara and other areas.
“People may experience symptoms such as an increased cough, sore throat, headache or difficulty breathing,” Environment Canada said. “Children, the elderly and people with cardiovascular or lung diseases, such as asthma, are especially at risk.”
The region is already under a heat warning due to two days of intense heat.
Toronto broke a 10-year temperature record on Tuesday, reaching 35.3 C in Toronto Pearson, surpassing the previous June 21 record of 34.4 C set in 2012.
Wednesday is expected to be another stifling day, with an expected high of 31 ºC, although it will feel closer to 39 with humidex. A UV index of 11, or “extreme”, is also expected.
People are reminded to never leave pets or people inside parked vehicles, to stay hydrated, and to avoid strenuous outdoor work during the hottest parts of the day if possible.
The temperature is expected to cool slightly on Thursday, although it will still be hot with a forecast high of 28.