Meaning & Definition of word "Smog"

Smog

/smɒg/

1. A type of air pollution characterized by a mixture of smoke and fog, typically produced by industrial and vehicle emissions.
- Example: The city was under a thick layer of smog, making it difficult to breathe.
2. An atmospheric condition that reduces visibility due to the combination of fog and smoke.
- Example: The smog in the valley turned the sunset into an eerie red glow.
3. Polluted air that can be harmful to health.
- Example: Residents are advised to stay indoors during high smog alerts.

●Coined in the early 20th century by blending 'smoke' and 'fog'.

London smog:

Refers to the historic air pollution crisis that occurred in London, especially known for the Great Smog of 1952.

industrial smog:

A term describing smog that results from industrial emissions and usually contains sulfur dioxide and particulate matter.

photochemical smog:

A type of smog formed by the photochemical reaction between sunlight and pollutants like vehicle exhaust.

pollution:

The presence of harmful substances in the environment.

fog:

A thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface.

Meaning: Smog city

● Example Sentence: When people refer to their homes as 'smog city', they're commenting on the poor air quality.

Meaning: Gray soup

● Example Sentence: The air felt like gray soup after weeks of smog accumulation.