The Use of Critical Levels for Determining Plant Response to Ozone in Europe and in North America

Critical levels to determine plant response to ozone (O3) have been used in Europe since the 1980s, utilizing the concentration-based AOT40 to relate plant response to ambient O3 exposure. More recently, there has been progress in Europe toward utilizing flux-based critical levels, because plant res...

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Bibliographic Details
Main Authors: Robert C. Musselman, Allen S. Lefohn
Format: Article
Language:English
Published: Hindawi Limited 2007-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/tsw.2007.24