5 Surprising Things About Smell

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5 Surprising Things About Smell

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Winston Choi-Schagrin

Winston Choi-SchagrinReporting on the power of the nose

It can be super sensitive.

Some of the most potent odors, like hydrogen sulfide, can be smelled at even the tiniest concentrations like 1 part per billion.

“If you were to map out the distance from New York to Los Angeles, 1 part per billion would account for only a few inches along that route,” Jacek Koziel, an engineer, told me.

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