Search Results       Your search for [subject]Trees -- Effect of air pollution on -- Europe returned 1 record.           The State of transboundary air pollution : report prepared within the framework of the Convention on Long-range Transboundary Air Pollution. New York: United Nations, 1996. Subject: Air -- Pollution; Transboundary pollution; Sulphur -- Environmental aspects; Trees -- Effect of air pollution on -- Europe; Forest conservation -- Europe.          Add to Book Cart Relevance: 40.22%