The phrase "fog about" is correct and can be used in written English to describe a feeling of confusion or uncertainty surrounding a topic or situation.
Example: The politician's actions left the public in a state of fog about his true intentions.
As it happens, though, many residents were in a fog about the date change.
The crash occurred April 10 , 2010 when the pilot tried to land in thick fog about half a mile from the airport in Smolensk in western Russia.
Once they arrived across the Mississippi River from the Confederate fortress in April 1863, Pemberton was in a fog about the federal army's future movements.
Many Party members are still in a fog about Chinese history, whether of the last hundred years or of ancient times.
The lingering fog about the C.I.A. detentions is a result of Mr. Obama's decision when he took office to conduct no investigation of them.
Hitchcock's fetish for "Nordic" women, as he called them, started in his 1927 silent film "The Lodger: A Story of the London Fog," about a Jack-the-Ripper-style lunatic.
"Night and Fog" is about death — about bringing those murdered in the concentration camps back to mind while remembering the practices and ideas that led to their death.
See also Footsteps in the Fog, specifically about Hitchcock's use of the city and Bay Area locations for his films.
Shadows flit through a fog blown about in swirling eddies by the biting wind off the North Sea.
Take The Lodger: A Story of the London Fog (1927), about a landlady who suspects that her "queer" lodger is actually a homicidal maniac who targets blondes.
With those readings as well as exterior temperature measurement from a sensor under the hood, the device determines whether fog is about to form on the glass.
