The completion of the initial phase of the U.S. National Acid Precipitation Assessment Program (NAPAP) in 1990 marked the end of the largest environmental research and assessment effort to that time. The resulting series of 27 State of Science and Technology (SOS/T) Reports and the NAPAP Integrated Assessment represent a decade of work by hundreds

Sullivan, Timothy J

Introduction. Background and Approach. Chronic Acidification. Extent and Magnitude of Surface Water Acidification. Chemical Dose-Response Relationships and Critical Loads. Episodic Acidification. Nitrogen Dynamics. Experimental Manipulation Studies. Predictive Capabilities. Case Study: Adirondack Park, New York. Case Study: Class 1 Areas in the Mountainous West. Conclusions and Future Research Needs. References.