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

chapter 1|6 pages


chapter 2|28 pages

Background and Approach

chapter 3|34 pages

Chronic Acidification

chapter 6|16 pages

Episodic Acidification

chapter 7|20 pages

Nitrogen Dynamics

chapter 8|22 pages

Experimental Manipulation Studies

chapter 9|40 pages

Predictive Capabilities

chapter 10|22 pages

Case Study: Adirondack Park, NY

chapter 12|8 pages

Conclusions and Future Research Needs