Special Air Quality Statement | Wildfire smoke blankets Ottawa for a third day

Ottawa police say a 13-year-old boy who had been missing for more than two weeks has been found safe.
The boy was last seen on March 9 in the McArthur Avenue area of Vanier, police said in news release last week.
On Monday, police said the boy has been found safe and sound.
CTV News has removed his name and photo from this story.
The Bank of Canada raised its overnight rate by 25 basis points to 4.75 per cent on Wednesday, its first increase since pausing hikes in January.
Poor air quality is forecast to persist into the weekend across parts of Ontario, as plumes of wildfire smoke blanket the province and prompt school boards to limit outdoor activities.
One of the architects of the law that governs Canada's prison system says it's understandable people want revenge on killer and serial rapist Paul Bernardo, but that's not what the prison system is designed for.
With social media ever-present in modern life, figuring out when and how to introduce it to children is something every parent will have to deal with eventually. CTV's Your Morning spoke to a child-life specialist about how parents can have that conversation and be positive role models too.
The start to wildfire season is adding pressure to fire crews who for some have been working the last month straight to protect communities in Canada.
Being a 'sleep procrastinator' might not only make you grumpy the next day, it can put your health at risk. A sleep expert shares tips for making sure bedtime is shut-eye time.
Prince Harry was back in the witness box at the High Court in London on Wednesday for a second day of grilling over his allegations that British tabloids targeted him with phone-hacking and other unlawful behaviour.
Halifax media outlets were given a tour of the neighbourhoods hardest hit by the Tantallon wildfire Tuesday afternoon and saw firsthand the damage and destruction left behind.
Wildfires currently burning across parts of Canada are some of the most severe ever witnessed, and experts say the 'unprecedented' fire season will become the new normal. CTVNews.ca wants to hear from Canadians with questions about wildfires, including their health impacts and how to stay safe.