photochemical smog
Americannoun
Etymology
Origin of photochemical smog
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Cleaner cars have wrought wonders in getting rid of photochemical smog, when all we need to do is buy one.
From Los Angeles Times ● Mar. 26, 2026
Not the good, high-altitude ozone that shields us from dangerous UV light, but bad ozone, hovering right above ground level — stinking, brownish, grayish photochemical smog.
From Los Angeles Times ● Mar. 26, 2026
It was a Caltech professor, Arie Jan Haagen-Smit, not GM engineers or chemists, who proved in the 1950s the connection between motor vehicles and the lethal photochemical smog over the cities and suburbs of California.
From Scientific American ● May 9, 2019
This ozone is a toxic component of photochemical smog.
From Textbooks ● Feb. 14, 2019
Through Japan's photochemical smog, you'll be seeing a paradoxical country where islands of quiet and beauty coexist with urban sprawl, and where modernization has never meant Westernization.
From Time Magazine Archive
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
