TRANSILVANIA UNIVERSITY OF BRAS0, Faculty of Silviculture and Forest Engineering V 2007 Proceedings of the Biennial International Symposium: Forest and Sustainable Development, Brasov, 27-28 th Oktober 2006 startpage: 609 endpage: 614 application/pdf 7860036 bytes info:eu-repo/semantics/article All rights reserved Abstract More than two decades ago Europe was alarmed by growing concerned that air pollution effects causing catastrophic forest damage. The main symptom of forest damage was defoliation of tree crowns. Awareness that observed damage was caused by air pollution led in 1985 to the establishment of the "International Cooperative Programme on the Assessment and Monitoring of Air Pollution Effects on Forests" (ICP Forests). ICP Forests was established under the Convention on Long Range Transboundary Air Pollution (CLRTAP) of the United Nations Economic Commision for Europe (UNECE). CLRTAP provides an institutional framework that brings together science and policy by means of an international scientific and political negotiation platform. Forest condition is a matter of concern for many governments. Today, 41 countries are participating. Institute of Forestry Belgrade as National Focal Center for ICP Forests annually provides results of national biomonitoring and spread data about forest condition to scientific populations as well as to the institutions - users of monitoring data. biomonitoring, ICP Forests, air pollution, crown condition Political background of forest condition monitoring with retrospective on situation in Serbia eng https://unilib.phaidrabg.rs/o:7603 ISSN: 1843 - 505X Nevenčić, Radovan Poduška, Zoran Stefanović, Tomislav Bilibajkić, Svetlana