- Smog - Wikipedia
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 odour [2] The word was then intended to refer to what was sometimes known as pea soup fog, a familiar and serious problem in London from the 19th century to the mid-20th century, where it
- Smog | Description, Causes, Effects, Types | Britannica
smog, community-wide polluted air Its composition is variable The term is derived from the words smoke and fog, but it is commonly used to describe the pall of automotive or industrial origin that lies over many cities The term was probably first used in 1905 by H A Des Voeux to describe atmospheric conditions over many British towns It was popularized in 1911 by Des Voeux’s report to the
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