The book begins with an overview of the research topics which were
addressed in the three different phases of the Dutch Priority
Program on Acidification (DPPA), executed between 1985 and 1994.
This chapter is followed by a chapter which deals with the
emissions of acidifying substances, the concentrations and the
deposition to forest and nature conservation areas. Prognoses are
given for the acid deposition in 2000 and 2010; the deposition in