an atmospheric condition in which suspended particles in the air rob it of its transparency
the city's smog was once so bad that darkness often prevailed, even at noon
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Recent Examples of smogOthers were looking for cheap real estate or an escape from the smog.—Jeff Goodell, Rolling Stone, 13 Feb. 2025 Ozone, a major component of smog, forms when sunlight triggers a reaction between nitrogen oxides and volatile organic compounds—both commonly emitted by vehicles, industrial facilities, and power plants.—Daniel R. Depetris, Newsweek, 25 Mar. 2025 Bringing classic cars to modern smog standards is costly, cumbersome and has driven a lot of the car-restoration industry to other states.—The Editorial Board, Orange County Register, 16 Mar. 2025 The greenhouse gas rating is 6, and the smog rating is 7; both out of 10.—Tony Leopardo, The Mercury News, 16 Mar. 2025 See All Example Sentences for smog
Zero visibility strategy: In cases of near-zero visibility due to dense fog, initiate your hazard lights and locate a secure spot, such as a nearby business parking area, to pull over and come to a halt.
—
NC Weather Bot,
Charlotte Observer,
2 Apr. 2025
The fog will lift by mid-morning, according to NWS Melbourne.
—
Garfield Hylton,
The Orlando Sentinel,
31 Mar. 2025
Later reports claimed that the plane had been hit by Russian shrapnel targeting Ukrainian drones, but the aircraft had already been struggling before the hit, having flown into a cloud of thick fog while losing satellite positioning data.
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