Photochemical Smog

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Gifted Chemistry IB

Alternative Assessment

1997 March 19

Photochemical Smog

Historically, the term smogginess referred to a form of git and cloud, hence the name smog. The industrial revolution has been the aboriginal cause for the increase in pollutants in the atmosphere everywhere the last three centuries. Before 1950, the majority of this pollution was created from the intense of coal for energy generation, space heating, cooking, and transportation. Under the right corrects, the smoke and sulfur dioxide produced from the burning of coal flush toilet combine with fog to create industrial smog. In high concentrations, industrial smog can be extremely toxicant to humans and other living organisms. London is world famous for its episodes of industrial smog. The intimately famous London smog event occurred in December, 1952 when atomic number 23 days of calm foggy weather created a toxic atmosphere that claimed about 4000 human lives. Today, the use of other fogey burn downs, nuclear power, and hydroelectricity instead of coal has greatly reduced the item of industrial smog. However, the burning of fossil fuels like gasoline can create another atmospheric pollution problem cognize as photochemical smog.



Photochemical smog is a condition that develops when primary pollutants (oxides of nitrogen and volatile organic compounds created from fossil fuel combustion) interact under the influence of sunlight to produce a mixture of hundreds of different and hazardous chemicals known as subaltern pollutants. Development of photochemical smog is typically associated with specific climatical conditions and centers of high population density. Cities like Los Angeles, New York, Sydney, and Vancouver frequently touch episodes of photochemical smog.

One way in which the production of photochemical smog is initiated is through the photochemical reaction of nitrogen dioxide (NO2) to form oz maven. at that place are many sources of photochemical smog, including vehicle engines (the number one cause of photochemical...

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