Air Quality and Ecological Impacts

1. Introduction - Allan H. Legge2. Theory and Application of Atmospheric Source Apportionment - Philip Hopke3. Use of Trace Metals as Source Fingerprints - Richard L. Poirot4. Plants as Accumulators of Atmospheric Emissions - J. Neil Cape5. Relating Source-Specific Atmospheric Sulfur Dioxide Inputs to Ecological Effects Assessment in a Complex Terrain - José Luis Palau, Sagar Krupa, Vicent Calatayud, Maria Sanz and Millán Millán6. Negative vs. Positive Functional Plant Responses to Air Pollution: a Study Establishing Cause–Effect Relationships of SO2 and H2S - L. J. De Kok, L. Yang, C. E. E. Stuiver, and I. Stulen7. Hormesis: Its Relevance in Phytotoxicology - H.-J. Jäger and S. V. Krupa8. Evaluating Ozone Effects on Growth of Mature Trees with High Resolution Dendrometer Systems - S. B. McLaughlin and M. Nosal9. Methods for Measuring Atmospheric Nitrogen Deposition Inputs in Arid and Montane Ecosystems of Western North America - M.E. Fenn, J.O. Sickman, A. Bytnerowicz, D.W. Clow, N.P. Molotch, J.E. Pleim, G.S. Tonnesen, K.C. Weathers, P.E. Padgett, and D.H. Campbell10. Air Quality Changes in an Urban Region as Inferred from Tree-Ring Stable Isotopes - M. M. Savard, C. Bégin, J. Marion, J.-C. Aznar, and A. Smirnoff11. Lichen Monitoring of Urban Air Quality, Hamilton, Ontario - D. P. McCarthy, B. Craig, and U. Brand12. Ozone Exposure-Based Growth Response Models for Trembling Aspen and White Birch - K. E. Percy, M. Nosal, W. Heilmanc, J. Sober, T. Dann and D. F. Karnosky13. Closing Remarks - Sagar Krupa and Allan H. Legge