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Smokies and the Ozone

Linda talks to Howard Neufield, Professor of Biology at Appalachian State University in Boone, North Carolina, about his study of the effects of ozone on vegetation in Great Smoky Mountains National Park. Neufield says ozone levels in the Great Smokies are among the highest in the National Park system. The study documents visible ozone injury to at least thirty species of plants in the park.

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