Search results
- Dictionarysmog/smɒɡ/
noun
- 1. fog or haze intensified by smoke or other atmospheric pollutants: "exhaust emissions are mainly responsible for the smog"
Powered by Oxford Dictionaries
Smog is air pollution that reduces visibility. The word “smog” was coined in the early 20th century, and is a contraction (portmanteau) of the words smoke and fog to refer to smoky fog due to its opacity, and odour.
SMOG definition: 1. a mixture of smoke, gases, and chemicals, especially in cities, that makes the atmosphere…. Learn more.
External audio. "Fighting Smog in Los Angeles", Distillations Podcast, 2018 Science History Institute. Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [1] to refer to smoky fog due to its opacity, and odor. [2]
The meaning of SMOG is a fog made heavier and darker by smoke and chemical fumes; also : a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust.
Jul 13, 2024 · Smog, community-wide polluted air. Although the term is derived from the words smoke and fog, it is often used to describe the pall of automotive or industrial origin that lies over many cities, and its composition is variable. At least two distinct types of smog are recognized: sulfurous smog and photochemical smog.
Oct 19, 2023 · Smog is air pollution that reduces visibility. The term "smog" was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from burning coal. Smog was common in industrial areas, and remains a familiar sight in some cities today. Today, most of the smog we see is photochemical smog.
A form of air pollution produced by the reaction of sunlight with hydrocarbons, nitrogen compounds, and other gases primarily released in automobile exhaust. Smog is common in large urban areas, especially during hot, sunny weather, where it appears as a brownish haze that can irritate the eyes and lungs.
a mixture of smoke, gases, and chemicals, especially in cities, that makes the atmosphere difficult to breathe and harmful for health: Smog is a major problem in Athens. As we flew into the airport, we could see a murky yellow smog hovering over the city. Joel Carillet/E+/GettyImages. SMART Vocabulary: related words and phrases.
Smog is a mixture of fog and smoke which occurs in some busy industrial cities. Cars cause pollution, both smog and acid rain. Synonyms: exhaust fumes , pollution , fog , haze More Synonyms of smog
Smog is the thick haze or smoke that's caused by polluting substances in the air. Generally, the more cars there are in a city, the more likely there is to be smog. There are other culprits for smog, though, including coal-burning factories, other chemical emissions from plants and mills, and nearby forest fires.
