Atmospheric Pollutants in Forest Areas Domänen und Erfolgsorientiertes Innovations und FuE Management O.P Erfolgsorientiertes Innovations und FuE Management or the Liouville von Neumann equation for the density operator The rapidly increasing interest in the problems of forest decay and the many open questions with respect to the diagnosis of the forest damage were the background for the organisation of a second symposium which was held in November 1985 at the same location in Oberursel Taunus The symposium successfully assembled scientists from the field of atmospheric research with those studying the effect of pollutants on trees and vegetation in order to reduce the many open questions in connection with forest desease