The objective of this study was to analyze the economic impact of environmental standards on the industries providing pollution abatement equipment to be required by both industry and government. This objective is accomplished through: (1) a characterization of the air and water pollution control equipment industries; (2) an analysis of demand for their products and services; and (3) an evaluation of the impact of that demand upon those industries. The demand and impact analyses are performed under assumptions of three alternative futures for the 1972-80 period. A Baseline scenario extrapolates pollution abatement activity from a base year predating major environmental legislation. A Federal Compliance Schedule simulates on-time enforcement of existing standards. An Expected Compliance Schedule reflects the contractor's forecast of what may alternatively occur. (Modified author abstract)