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Smog

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Article Information
Category: Weather Weather
Content source: SKYbrary About SKYbrary
Content control: EUROCONTROL EUROCONTROL

FG

Definition

A mixture of smoke and fog.

Description

Where significant industrial pollution is present, as well as a temperature inversion, smoke and fog combine to produce a toxic mixture known as Smog. In some parts of the developing world, this is still a major health hazard which of course affects people on the ground but is not likely to be a significant in-flight issue, apart from reduced visibility, partly because the layer of smog is unlikely to be more than a few thousand feet thick and because any harmful toxins are likely to be removed by the aircraft’s air conditioning system before they enter the cabin atmosphere.

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