Smog

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Smog in New York City as viewed from the World Trade Center in 1988

Smog is a type of air pollution; the word "smog" was coined in the early 20th century as a portmanteau of the words smoke and fog to refer to smoky fog. The word was then intended to refer to what was sometimes known as pea soup fog, a familiar and serious problem in London from the 19th century to the mid 20th century. This kind of smog is caused by the burning of large amounts of coal within a city; this smog contains soot particulates from smoke, sulfur dioxide and other components.

• See also: Wikipedia, Commons

• Related: 1997 Southeast Asian haze, 2005 Malaysian haze, 2006 Southeast Asian haze, Contrail, Criteria air contaminants, Emission standard, Haze, Inversion effect, Nitric oxide, Ozone, Umweltzone

Smog Smog en.citizendium.org/wiki/Smog - Web

Eoearth.org Eoearth.org www.eoearth.org/article/London_smog_disaster%2C_England - Web

NPI.gov.au NPI.gov.au www.npi.gov.au/database/substance-info/profiles/69.html - Web

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Contrails.nl Contrails.nl www.contrails.nl - Web

Ausetute.com.au Ausetute.com.au www.ausetute.com.au/photsmog.html - Web

Iras.uu.nl Iras.uu.nl airnet.iras.uu.nl/products/pdf/airnet_wg3_toxicology_report.pdf - Web

BBC.co.uk BBC.co.uk www.bbc.co.uk/ww2peopleswar/stories/10/a4914010.shtml - Web

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