Environmental Index     Basics Introduction Air Pollution   History of Air Pollution Regulations Goals of the Clean Air Act and Amendments Federal, State and Local Authority / Regulations EPA Pollutions Prevention Program Industrial Sources of Air Pollution / Emission Factors   Boilers Process Heaters Furnaces Ovens Kilns Electrical Generating Equipment Electrotechnologies   Equipment Boilers Process Heaters Furnaces Ovens Kilns Electrical Generating Equipment   Gas Turbines Natural Gas Engines Dual Fuel Engines Electrotechnologies Equipment Manufacturers   Applications Case Studies   2 Steel Companies Coen Morningstar Cannery Paper Plant U.S. Borax U.S. Department of Energy Study Calculators Trade Associations / Resources   Glossary