Commission on Life Sciences & Committee on Biologic Markers of Air-Pollution Damage in Trees 
Biologic Markers of Air-Pollution Stress and Damage in Forests [PDF ebook] 

There is not much question that plants are sensitive to air pollution, nor is there doubt that air pollution is affecting forests and agriculture worldwide. In this book, specific criteria and evaluated approaches to diagnose the effects of air pollution on trees and forests are examined.