PCR prepared the EIR and associated technical sections for the Douglas Park Project, formerly known as PacifiCenter@Long Beach, which will result in the redevelopment of approximately 261 acres of former and existing Boeing C-1 aircraft production facilities located within the Cities of Long, Beach and Lakewood. Project implementation will provide the project site with new R&D, light industrial, office, retail, hotel, residential, aviation-related, and ancillary uses. Among the primary concerns of the neighboring businesses at Long Beach Airport, specifically was air quality impacts associated with proposed residential uses in close proximity to the airport. To address the concern, PCR conducted a comprehensive air quality analysis. As part of the analysis, health risk impacts were evaluated from potential air toxic emitting sources (e.g., Boeing 717/C-17 production facility and the Airport). FAA’s Emissions Dispersion Modeling System (EDMS 4.12) was used for assessing aircraft, auxiliary power units, ground support equipment, ground access vehicles, and stationary sources, such as power plants, fuel tanks, maintenance and surface coating facilities, and miscellaneous sources. The California Air Resources Board toxic air contaminant speciation profiles were used to characterize airport related emission sources. EPA’s Industrial Source Complex Short-Term 3 Version 02035 (ISCST3) was used to calculate the annual and maximum hourly chemical concentrations associated with each emitting source. Potential carcinogenic, chronic, and acute health risk impacts were then characterized for proposed on-site residences. The Long Beach Airport subsequently used this health risk assessment as the basis for the Long Beach Airport Terminal Area Improvement Project EIR.