Smoke from Canadian wildfires engulfs the U.S. East Coast.
All citizens were called on Wednesday to stay in their homes. Much of what you can see and measure in the air are small particles, so small that they can go deep into the lungs. The air quality in the metropolis is worse than at any time since measurements began. Due to poor air quality, several professional sporting events in New York have been canceled. Eyewitnesses reported that the air smelled of burning wood.