This book helps evaluate the merits of controlling directly emitted acidid materials as part of a policy evaluation of overall acid deposition control strategies. It is based on the Acid Precipitation Act of 1980.Introduction Results and Recommendations Summary of Acidic Emissions Estimates Development of Model Units Cost Analysis Research and Development AppendicesThis book helps evaluate the merits of controlling directly emitted acidid materials as part of a policy evaluation of overall acid deposition control strategies. It is based on the Acid Precipitation Act of 1980.