Wildfire Smoke Is Destroying Cities' Air Quality

The video discusses the severe air quality issues in some U.S. cities, highlighting the health impacts and the role of air quality apps. It emphasizes the global health threat posed by air pollution, citing WHO statistics on mortality. The video also explores the impact of wildfires on air quality, even affecting regions far from the fires. It explains the dangers of particulate matter, especially PM2.5, which can linger in the air and be easily inhaled, posing significant health risks.

Why are more people using air quality apps in certain U.S. cities?

• To monitor their safety due to poor air quality

• To find the best travel routes

• To check for local events

• To track weather changes

According to the World Health Organization, how many people are affected by poor air quality each year?

• 1 million

• 3 million

• 5 million

• 7 million

What recent event has worsened air quality even on the East Coast?

• Wildfires in the West

• Industrial pollution

• Deforestation

• Increased vehicle emissions

What makes wildfire smoke particularly dangerous?

• It contains a high level of oxygen

• It is heavier than air

• It is odorless and colorless

• It has thousands of various individual chemicals

Why is particulate matter smaller than 2.5 micrometers considered hazardous?

• It lingers in the air and is easily inhaled

• It can be easily filtered by masks

• It dissolves in water

• It is visible to the naked eye