This is the second report of The Watt Committee's working group on acid rain, which was set up in 1981. Contents: 1. Production and deposition of airborne pollution. B Smith. 2. Vegetation and Soils. W Binns. 3. Freshwater. D Hammerton. 4. Corrosion of building materials due to atmosphere pollution in the United Kingdom. M Manning. Control and remedial strategies. C Davies. 5. Control and remedial strategies. Appendix: Nineteenth consultative conference of The Watt Committee on Energy. The Watt Committee on Energy: objectives, historical background and current programme. Member institutions of The Watt Committee on Energy. Watt Committee reports. Index.