Roundup: Wildfire smoke makes air quality dangerously poor in Ottawa
OTTAWA, June 6 (Xinhua) -- As wildfires blazed in western Quebec and northern Ontario near Ottawa, the air quality of Canada's capital city was so bad that it cracked through the top of a risk scale on Tuesday.
Environment Canada warned that forest fires may keep the air dangerous to human health through most of the week.
The city was officially at a 10+ on Environment Canada's Air Quality Health Index Tu