Health Risks Symptoms Health Advisories Canadian Wildfires Vulnerable Populations Public Health Canada Face Masks Protection Precautions Special Health Precautions Health Effects Headaches Respiratory Health General Safety Precautions Weather Patterns Air Quality Index Fine Particulate Matter Hazards Effects Respiratory and Cardiovascular Problems Fine Particles Harmful Effects Long-Term Effects Particulate Matter Pet Health Climate Change Physical Health Impacts Mental Health Impacts Masks Public Health Threats Personal Protection Eastern Seaboard HEPA Filters Preparedness Clean Air Centers Effects on U.S. Safeguarding Measures Harmful Pollutants Public Health Advisories Public Health Alerts Adverse Health Effects Alberta and British Columbia North America Unhealthy Air Respiratory Diseases PM2.5 Particles
Smoke from fires covering 3.7 million hectares has drifted over U.S. states, crossing the Atlantic to reach Europe