Airport Air Quality Management 101 (2018) / Chapter Skim
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Pages 12-15
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From page 12... ...
12 Air quality analysis is essential for understanding the impacts of airport air emissions on people as well as the environment. It requires specialized knowledge and tools because of the complexity of the processes taking place.
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From page 13... ...
Air Quality Analysis 13 • Taxi in: The landing ground roll segment of an arriving aircraft from touchdown to the runway exit, including reverse thrust braking and taxiing from the runway exit to a gate. • Taxi out: Aircraft main engine startup at the gate and taxiing from the gate to a runway end.
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From page 14... ...
14 Airport Air Quality Management 101 pollutants to the air, creating a plume. Atmospheric motion determines the overall speed and direction the plume travels and is primarily responsible for the mixing, or dispersion, that takes place within the ambient atmosphere.
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From page 15... ...
Air Quality Analysis 15 Adding further complexity, many pollutants undergo a chemical reaction and transform in the atmosphere. For example, at the aircraft engine exit, hot combustion gases mix with ambient air to quickly cool the gas stream.
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