The term “smog” is a contraction of the words “smoke” and “fog.” Smog usually consists of soot particles, sulfur dioxide, and other compounds. The citizens of Los Angeles initially blamed the ...

"The combination of coal smoke and fog in that event gave rise to the word 'smog,'" said Jon Martin (archived here) as atmospheric and oceanic sciences professor from University of Wisconsin ...

NEW ORLEANS – A combination of warm temperatures ... According to the National Weather Service, "super fog" occurs when smoke and moisture from damp materials mix with cooler air, drastically ...