Smokies Face Environmental Threats, UT Study Shows
KNOXVILLE, Tenn. — High elevations in the Smokies receive more acid precipitation than almost anywhere in North America, a University of Tennessee study shows. Dr. Stephen Nodvin, a UT-Knoxville adjunct associate professor of forestry and ecology, said the precipitation contributes to nitrogen-based pollution, or nitrates, in the park which is destroying habitats for species such