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## Sec. 3: Sources & Types of Emissions 

 Aircraft 

 Auxiliary Power Units (APUs) 

 Ground Support Equipment (GSE) 

 Ground Access Vehicles 

 Stationary & Area Sources 

 Construction 

[Hdbk. Pgs. 10 - 17] 

## Sources 

 Criteria Pollutants (and their precursors) 

 Hazardous Air Pollutants (HAPs) 

 Greenhouse Gases (GHGs) 

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## Types 

