Canada wildfires burning out of control More than 25,000 people across central Canada have been forced to leave their homes to escape dozens of wildfires that are worsening air quality in the country and across the border into the U.S. Residents evacuated in Alberta, Saskatchewan and Manitoba STEERING WINDS UNITED STATES CANADA BRITISH COLUMBIA ALBERTA MANITOBA ONTARIO QUEBEC SASKATCHEWAN MINNESOTA NORTH DAKOTA MICHIGAN ILLINOIS WISCONSIN ATLANTIC OCEAN Harmful effects of wildfire smoke Higher risk of stroke and brain tumour Eye irritation Higher risk of heart attack Increased risk of hospital visit for respiratory conditions. Higher risk of lung cancer Greater risk of pregnancy loss, low birth weight and pre-term delivery Weakened immune defences Skin problems Sky conditions (as of Jun 3) Hazy Thickest smoke Worst fires 100km 60 miles Sources: Reuters, AccuWeather, NOAA, FireSmoke Canada © GRAPHIC NEWS