04_AECOM_Environmental Report_Final

Air Quality Madeling Report Given the number of individual PAHs evaluated in the analysis, to simplify the health risk modeling, each stack was modeled with a unit emission rate (1 gram per second [g/sec]) and the total maximum modeled concentration for all twelve (12) sources over the five years of meteorological data, in units of g/m per g/sec was scaled by the respective annual PAH emission rate (in g/sec) for a single source. These concentrations (ug/m*) were then used to calculate the cancer and non-cancer risks. AECOM 24