Air Quality Impact Analysis of a Proposed North/South Runway at Anchorage International Airport.

This report presents an air quality analysis of the impact of a proposed runway at Anchorage International Airport. A projection of 1978 air traffic conditions was made and the Airport Vicinity Air Pollution (AVAP) model was used to calculate the aircraft impact upon air quality for cases with and without the proposed runway. The AVAP model is a Gaussian-plume-type dispersion model that utilizes point, area, and line source formulations to simulate the airport system. The air quality impact is evaluated by comparing the air quality concentrations for the case with the proposed runway to the case without the runway. Typical Anchorage days where the meteorology is poor were selected such that rather poor air quality would result. The study indicates that the addition of the proposed runway does not make a significant impact upon the airport vicinity air quality. Areas of concern do exist on the airport itself, but the impact on the communities surrounding Anchorage International Airport is minimal. (Author)