Although jets are pressurized so that the cabin environment resembles an altitude of around 8, 000 feet, some people report that flying (possibly from the changes in pressure and resulting decrease in oxygen concentration) causes symptoms such as headache, fatigue and nausea.

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Since the reactors would not be pressurized, radioactivity would not be expelled as widely into the environment as in an accident like the Fukushima disaster, Wilson said.

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