Widespread wildfires across the Pacific Northwest and western Canada have led to severe air quality issues and extensive evacuations. Environment Canada issued air quality advisories for British Columbia, while Oregon and California face similar conditions due to numerous fires, including the massive Park Fire which has forced over 4,000 residents to evacuate. Health risks from the smoke are significant, especially for vulnerable populations such as seniors, children, and those with pre-existing conditions. Authorities recommend staying indoors, using high-efficiency particulate air masks, and minimizing outdoor activities. The fires are exacerbated by extreme heat and dry conditions, with some areas experiencing hazardous air quality levels. Firefighters continue to battle the blazes amid challenging terrain and weather conditions.