SMOG

n. mixture of smoke and fog

Smog is a kind of air pollution; the word "smog" is a portmanteau of smoke and fog. Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulphur dioxide.
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Bill Callahan (born approximately 1968 or 1969), also known as Smog and (Smog), is an American singer-songwriter born in Silver Spring, Maryland. Callahan began working in the lo-fi genre of underground rock, with home-made tape-albums recorded on four track tape recorders. Later he began releasing albums with the label Drag City. He is currently dating folk singer Joanna Newsom, to whose newest album he contributed on the song "Only Skin."
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SMOG (Simple Measure Of Gobbledygook) is a readability formula that estimates the years of education needed to understand a piece of writing. SMOG is widely used, particularly for checking health messages. The precise SMOG formula yields an outstandingly high 0.985 correlation with the grades of readers who had 100 omprehension of test materials.
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Smog n. 1. Fog that has become mixed and polluted with smoke. 2. A form of air pollution produced when sunlight causes hydrocarbons and nitrogen [more]Smog - Community and Resources

Noun
1. air pollution by a mixture of smoke and fog
(synonym) smogginess
(hypernym) air pollution
(classification) blend, portmanteau word, portmanteau

n. smog, mixture of smoke and fog