... Francis Group, LLC 1 78 Principles of Air Quality Management, Second Editiontypes of air contaminant emissions. Rather, a comprehensive approach, taking intoaccount contaminant-specific parameters, ... 152 Principles of Air Quality Management, Second Edition Problems with this approach may occur as a result of the possibility of corrosivegases being present in the exhaust and the lack of ... 140 Principles of Air Quality Management, Second Edition MANAGEMENT AND OPERATIONAL CHANGES Because source-reduction approaches have the greatest potential for an immediatereduction in air...