The New Dictionary of Cultural Literacy, Third Edition. 2002. smog
A haze or fog composed of water vapor, complex molecules , and suspended particles. 1 ‡ In North America , the primary cause of smog is pollution from automobile exhaust. 2 ‡ The Los Angeles basin, where pollutants can be trapped by inversions and the surrounding mountains, has frequent problems with smog, as do other major urban areas. 3 ‡ The word smog is a combination of smoke and fog. 4
The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
