Effects and Control of Long-range Transboundary Air Pollution Air Pollution Studies This volume provides information on possible impacts of acid deposition on the quality of groundwater in the ECE region. It also presents information on the forest condition in Europe, as well as options for further reduction of nitrogen oxide emissions from heavy-duty vehicles. Book Ordering Information:    Sales Number: E. 94.II.E.24     ISBN: 92-1-116602-0     No.10     Pages: 60pp.      Price: $20.00 Sales Number: E. 95.II.E.17     ISBN: 92-1-116630-6     No.11     Pages: 72pp.      Price: $20.00 [Environment Main] [Subject Index] [Alphabetical Index] [UN Publications Policies] Copyright © 1997 United Nations