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TeachMeFinance.com - explain smog smog The term 'smog' as it applies to the area of Earth observation can be defined as ' This is a term used to describe a mixture of smoke and fog. Smog occurs when high concentrations of moisture is combined with smoke (often containing oxides of sulfur and nitrogen) in the presence of high temperatures or thermal inversions and the absence of wind. These conditions cause polluted air to stagnate over industrial areas and can create a respiratory health hazard. Large coastal industrial centers with surrounding high ground are more prone to smog. There is often a diurnal (over a day) variation in the process of smog formation because one of the necessary components for its formation is sunlight'. The term 'smog' as it applies to the area of the weather can be defined as ' Originally smog meant a mixture of smoke and fog. Now, it means air that has restricted visibility due to pollution or pollution formed in the presence of sunlight--photochemical smog'. The term 'smog' as it applies to the area of carbon dioxide can be defined as ' Air pollution associated with oxidants'. Previous 5 Terms: Small Stream Flooding smalt smaragdine Smi Premium Smith-Lever Act of 1914 Next 5 Terms: smoke Smoke Dispersal Smoke Management Smolts Smoothed Sunspot Number About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.