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 smogThat smog can have far-reaching consequences.—Sarah Henry, AZCentral.com, 18 Jan. 2026 The air district cited concentrations of particulate matter — commonly known as smog — to be elevated to a level approaching unhealthy for those with respiratory or other health issues.—Rick Hurd, Mercury News, 15 Jan. 2026 Ozone, a key ingredient of smog, is particularly dangerous for people with asthma and other lung diseases, especially children.—Andrea Thompson, Scientific American, 14 Jan. 2026 Emissions of nitrogen oxide, also known as NOx, form smog and soot that is harmful to human health and linked to serious heart and lung diseases.—Matthew Daly, Los Angeles Times, 14 Jan. 2026 See All Example Sentences for smog
But luckily for everyone marveling at JWST’s crisp snapshots of faraway galaxies, this dense haze is totally invisible.
—
Joseph Howlett,
Scientific American,
25 Jan. 2026
Directed by Joel Thompson, the centuries-old tale of demons, magic spells and a deal with the devil is brought to life with special effects and theatrical stage haze.
In extremely dense fog where visibility is near zero, the best course of action is to first turn on your hazard lights, then simply pull into a safe location such as a parking lot of a local business, and stop.
—
CA Weather Bot,
Sacbee.com,
3 Feb. 2026
Cold front Tuesday Clouds will dominate Central Texas on Tuesday morning, along with areas of patchy to dense fog that could reduce visibility during the morning commute, especially west of Austin, where winds will be lighter.
—
Newsroom Meteorologist,
Austin American Statesman,
3 Feb. 2026
Reports also said the military was concerned that Microsoft was moving file storage online to the cloud — the standard version of LibreOffice is not cloud-based.