London (sulfurous) smog: Difference between revisions

Revision as of 16:21, 25 April 2012

London (sulfurous) smog

Deadly mixture of smoke and fog peaking in the midtwentieth century in large cities.

A smog episode in London in 1952 led to 4000 deaths. The sulfuric acid produced from the fossil fuel sources in use at that time led to a choking mixture when incorporated into fog droplets. It is associated with low temperatures, low actinic flux, and high humidity. This form of air pollution was largely eliminated by legislation in the 1950s that led to reduced emissions of SO₂ and smoke.
See Los Angeles (photochemical) smog.

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-<div class="definition"><div class="short_definition">Deadly mixture of [[smoke]] and [[fog]] peaking in the midtwentieth century  in large cities.</div><br/> <div class="paragraph">A [[smog]] episode in London in 1952 led to 4000 deaths. The [[sulfuric acid]] produced from the  fossil fuel sources in use at that time led to a choking mixture when incorporated into fog droplets.  It is associated with low temperatures, low actinic [[flux]], and high humidity. This form of [[air  pollution]] was largely eliminated by legislation in the 1950s that led to reduced emissions of SO<sub>2</sub>  and smoke. <br/>''See'' [[Los Angeles (photochemical) smog]].</div><br/> </div>
+<div class="definition"><div class="short_definition">Deadly mixture of [[smoke]] and [[fog]] peaking in the midtwentieth century  in large cities.</div><br/> <div class="paragraph">A [[smog]] episode in London in 1952 led to 4000 deaths. The [[sulfuric acid]] produced from the  fossil fuel sources in use at that time led to a choking mixture when incorporated into fog droplets.  It is associated with low temperatures, low actinic [[flux]], and high humidity. This form of [[air pollution|air  pollution]] was largely eliminated by legislation in the 1950s that led to reduced emissions of SO<sub>2</sub>  and smoke. <br/>''See'' [[Los Angeles (photochemical) smog]].</div><br/> </div>
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