Plant responses to elevational gradients of O(3) exposures in Virginia.

  title={Plant responses to elevational gradients of O(3) exposures in Virginia.},
  author={W E Winner and Allen S. Lefohn and I S Cotter and C S Greitner and J Nellessen and Linda McEvoy and Richard L. Olson and Christopher John Atkinson and Leslea D Moore},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={86 22},
In Shenandoah National Park, O(3) monitoring data were characterized and attempts were made to relate O(3) concentration levels to visible foliar injury observed for five plant species surveyed. Foliar injury for three species increased with elevation. The 24-h monthly mean O(3) concentrations tended to increase with elevation; however, the number of elevated hourly occurrences did not. Although the frequency of high hourly O(3) concentrations did not consistently increase with elevation, O(3… CONTINUE READING
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