Dispersion Modeling Guidance for Airports Addressing Local Air Quality Health Concerns (2017) / Chapter Skim
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Pages 6-12
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From page 6... ...
6This chapter describes how airport emissions disperse, mix with background pollutants and react and/or transform in the atmosphere. It also describes the regulatory framework important to understanding the relative significance of different sources and pollutants.
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primer on airport air Quality and Dispersion Modeling 7 and sulfur dioxide (SO2)
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8 Dispersion Modeling Guidance for airports addressing Local air Quality health Concerns source emissions) mix with the pollutants that are already in the atmosphere (i.e., background emissions)
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primer on airport air Quality and Dispersion Modeling 9 plume after mixing with the ambient atmosphere. Most of the aviation-related PM that reaches airport communities comprises particles released during ground operations, landings, and takeoffs.
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10 Dispersion Modeling Guidance for airports addressing Local air Quality health Concerns scheme and to assumptions/hypotheses used in the solution to the equations governing the wind, turbulence, and concentration of the puff transport and dispersion. SCICHEM uses a collection of Gaussian puffs to represent concentration fields.
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From page 11... ...
primer on airport air Quality and Dispersion Modeling 11 2.2 Selecting a Dispersion Model for Airport Air Quality Analysis Selecting the right model to use for a particular study at an airport is important because the data and manpower requirements can vary widely, affecting the cost of conducting the study. Questions a researcher may ask when choosing a model are: • Am I creating an emissions inventory to meet a regulatory requirement for determining pollutant concentrations?
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From page 12... ...
12 Dispersion Modeling Guidance for airports addressing Local air Quality health Concerns Figure 2. Decision tree for selection of an air quality model.
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