Pollution vs Smog

When to use each in English, with meaning, register, and examples.

 PollutionSmog
MeaningDirty things in the air, water, or land that make them unhealthy.A type of air pollution that combines smoke and fog.
CEFR levelA2-
Part of speechnoun
Usage notesUsed in discussions about the environment or health. Avoid in casual chats unless discussing related issues. More common in scientific or media contexts.Use 'smog' in discussions about air quality or environmental issues. It's appropriate for both formal and informal contexts.

Frequently asked questions: Pollution vs Smog

What's the difference between "Pollution" and "Smog"?

"Pollution" means: Dirty things in the air, water, or land that make them unhealthy. "Smog" means: A type of air pollution that combines smoke and fog.

When should I use "Pollution" and "Smog"?

They can all be used in everyday English.

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