What is the origin of the word smog?

Answer 1

Smog is a type of air pollution; the word "smog" was coined in the early 20th century as a combination of the words smoke and fog to refer to smoky fog.

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. This kind of smog is caused by the burning of large amounts of coal within a city; this smog contains soot particulates from smoke, sulfur dioxide and other components. Modern smog, as found for example in Los Angeles, is a type of air pollution derived from vehicular emission from internal combustion engines and industrial fumes that react in the atmosphere with sunlight to form secondary pollutants that also combine with the primary emissions to formphotochemical smog.

Answer 2

Britain. the word was coined by a Glasgow public heath official Mr H.A. Des Voeux

Answer 3

Smog is a blend of smoke and fog. Used in London in 1905 by the 'coal and smoke abatement society'