This folder contains 4 selected NO2 evaluation databases for the AERMOD dispersion model. Each subfolder contains the raw inputs and outputs for AERMET, BPIP (if applicable) and AERMOD. A separate subfolder containing the observed concentration data is provided. The databases and their role within the AERMOD performance evaluation are identified below: Balko Terrain, Rural, Downwash, Independent, 4 NO2 monitors Denver-Julesburg (Supplemental) Terrain, Rural, Downwash, Independent, 12 NO2 monitors Supplemental for 2023 TSD Denver-Julesburg Flat, Rural, Downwash, Independent, 12 NO2 monitors Empire Abo Flat, Rural, Downwash, Independent, 2 NO2 monitors Pala'au Flat, Rural, Downwash, Independent, 1 NO2 monitor * All NO2 database AERMOD inputs use upwind hourly ozone and NOX (GRSM), if available. ** Empire Abo and Pala'au assume non-varying NOX emissions.