
Wildfire smoke to linger over Ottawa Tuesday before air quality improves
A special air quality statement and a heat warning remain in effect for Ottawa, with smoke from western Canadian wildfires mixing with the hot, humid weather.
The forecast for Tuesday is sunny with local smoke. The high is 32 C with a humidex of 40. The UV index is 9, or very high.
The air quality health index (AQHI) is 5, or a moderate risk, and it is forecast to fall to a 4 Tuesday night before dropping to 3, or low risk, on Wednesday.
'You may experience mild and common symptoms such as eye, nose and throat irritation, headaches or a mild cough. More serious but less common symptoms include wheezing, chest pains or severe cough. If you think you are having a medical emergency, seek immediate medical assistance,' Environment Canada says of the smoke.
The heat, however, also presents risks.
'Watch for the early signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water,' the heat warning says.
Meteorologist Crawford Luke says if you have to choose between staying indoors to avoid the haze or going outside to find a way to cool off, choose to cool off.
'The public health messaging is to treat the heat warning as the more serious one,' he told CTV News Ottawa on Monday. 'If that means you need to jump in a lake or a pool or something to keep cool, that's the recommendation from them. It's the more immediate health threat.'
The sky will remain clear, but hazy, Tuesday night. The overnight low is 20 C.
Wednesday's forecast is mainly sunny with a high of 33 C and a humidex of 41.
The heat warning for Ottawa is expected to end Thursday night. Thursday's forecast is cloudy with a 30 per cent chance of showers and a high of 30 C, while Friday's high is 26 C, which is closer to the seasonal norm.
With files from CTV News Ottawa's Kimberley Johnson
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Ottawa Citizen
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Enjoy additional articles per month. Get email updates from your favourite authors. THIS ARTICLE IS FREE TO READ REGISTER TO UNLOCK. Create an account or sign in to continue with your reading experience. Access articles from across Canada with one account Share your thoughts and join the conversation in the comments Enjoy additional articles per month Get email updates from your favourite authors In Canada, the Air Quality Health Index (AQHI) is a scale developed to help people understand what the current air quality means for your health. It is an initiative among Environment Canada, Health Canada and the provincial governments. 'When we look at the AQHI, it's really an indication of the impact of the air quality on our health,' said Dr. Samantha Green, a family physician at Unity Health Toronto. The Ottawa Citizen's best journalism, delivered directly to your inbox by 7 p.m. on weekdays. By signing up you consent to receive the above newsletter from Postmedia Network Inc. 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