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Smog - Wikipedia
Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [1] to refer to smoky fog due to its opacity, and odour. [2] .
Smog Check: When you need one and what's required
Check your DMV registration renewal notice for one of these messages: A Smog Check is required when a vehicle changes ownership. If you're selling your vehicle, a Smog Check is required before you sell it. Be sure to give the buyer a copy of the vehicle inspection report.
Check a vehicle's inspection history - Bureau of Automotive Repair
Certificates are transmitted to the Department of Motor Vehicles for registration purposes. Records are updated daily at midnight. The Bureau of Automotive Repair’s Vehicle Inspection Results page, displays Inspection history based on the vehicle VIN or license plate.
Smog | Description, Causes, Effects, & Types | Britannica
At least two distinct types of smog are recognized: sulfurous smog and photochemical smog. Sulfurous smog, which is also called “London smog,” results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal.
Great Smog of London - Wikipedia
The Great Smog was a severe air pollution event that affected London, England, in December 1952. A period of unusually cold weather, combined with an anticyclone and windless conditions, collected airborne pollutants—mostly arising from the use of coal —to form a thick layer of smog over the city.
AirNow.gov
AirNow is your one-stop source for air quality data. Our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views.
SMOG Definition & Meaning - Merriam-Webster
The meaning of SMOG is a fog made heavier and darker by smoke and chemical fumes; also : a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust.
www.SmogStats.com
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