The study of air pollution effects on vegetation has made rapid progress in the last five years. At the 3rd International Symposium on Air Pollutants and Plant Metabolism, Virginia Polytechnic Institute, June 1992, the world's experts gathered to discuss the metabolic and molecular processes influenced by air pollutants. Each speaker was chosen to cover progress, especially that of the last 5 years, in various areas related to plant metabolism and air pollution effects. The ideas presented at the conference are the subject of this highly informative book. _