Environment: A Nose Job

Environmental officials in the San Francisco Bay Area have an assortment of instruments designed to monitor and evaluate the chemical and particle content of the air, but they have found no device yet that can match the human nose in detecting odors. In fact, the proboscis does such a good job that the Bay Area Regional Control Board recently established a panel of three people to screen odors. "In all fairness to the polluters, we will screen out hypersensitive noses," explained Tom Story, of the San Francisco Bay Area air-pollution control board, "and in all fairness to us, we will screen...

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