air pollution
nounUK /eə pəˈluːʃn/
US /er pəˈluːʃn/
Dirty stuff in the air that makes it hard to breathe.
The city has a lot of air pollution from cars and factories.
RELATED WORDS
OTHER MEANINGS
2. Harmful gases and particles released into the sky by human activities.
Scientists measure air pollution to see if the air is safe.
3. The presence of substances in the atmosphere that can hurt people, animals, or plants.
Air pollution can make trees and crops grow poorly.
4. A mix of smoke, dust, and chemicals that hangs over a place.
You could see the air pollution as a gray cloud over the road.