smog
/smɔg/
Definition
- Noun:
- Air pollution consisting of a mixture of smoke and fog: A type of dense, dirty, and often harmful air pollution that is common in urban and industrial areas, created when smoke and other pollutants combine with fog.
Usage
- As a subject: "Smog" is often used to describe a visible, hazardous atmospheric condition.
- As an object: It is commonly discussed in contexts of environmental science, public health, and weather reports.
Examples
- Noun:
- The city was covered in a thick blanket of smog.
- Health officials issued a warning due to dangerous levels of smog.
- Industrial emissions are a major contributor to smog formation.
Advanced Usage
- "Photochemical smog": A specific type of smog formed by the action of sunlight on pollutants like nitrogen oxides and volatile organic compounds, common in sunny cities.
- Los Angeles is famous for its photochemical smog.
- "Smog alert": An official warning issued when smog levels are dangerously high.
- A smog alert was declared, advising people with respiratory problems to stay indoors.
Variants and Related Words
- Smoggy (adj): Describing an atmosphere filled with or characterized by smog.
- The view was terrible on the smoggy day.
Synonyms
- Haze: A slight obscuration of the lower atmosphere, typically caused by fine suspended particles. (Less dense and specific than smog).
- Pollution: The presence in or introduction into the environment of a substance with harmful effects. (A broader, more general term).
Idioms
- "Choking on smog": Used figuratively to describe severe air pollution and its effects.
- The metropolis is literally choking on smog.
Noun
-
air pollution by a mixture of smoke and fog
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