INPUT GROUP: 9 -- Miscellaneous Dry Deposition Parameters Parameter Description Value Reference pollutant reactivity 8 REACTR Number of particle size intervals for effective particle deposition velocity 9 NINT Vegetation state in unirrigated areas (1 = active and unstressed, 2 = active and stressed, 3 = inactive) 1 IVEG INPUT GROUP: 11 -- Chemistry Parameters Parameter Description Value Ozone background input option (0 = monthly, 1 = hourly from OZONE.DAT) 1 MOZ Monthly ozone concentrations (ppb) 80.00, 80.00, 80.00, 80.00, 80.00, 80.00, 80.00, 80.00, 80.00, 80.00, 80.00, 80.00 BCKO3 Ammonia background input option (0 = monthly, 1 = from NH3Z.DAT) 0 MNH3 Ammonia vertical averaging option (0 = no average, 1 = average over vertical extent of puff) 1 MAVGNH3 Monthly ammonia concentrations (ppb) 10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.00, 10.00 BCKNH3 Nighttime SO2 loss rate (%/hr) 0.2 RNITE1 Nighttime NOx loss rate (%/hr) 2 RNITE2 Nighttime HNO3 loss rate (%/hr) 2 RNITE3 H2O2 background input option (0 = monthly, 1 = hourly from H2O2.DAT) 1 MH2O2 Monthly H2O2 concentrations (ppb) 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00 BCKH2O2 Minimum relative humidity for ISORROPIA 50.0 RH_ISRP Minimum SO4 for ISORROPIA 0.4 SO4_ISRP SOA background fine particulate (ug/m**3) 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00, 1.00 BCKPMF SOA organic fine particulate fraction 0.15, 0.15, 0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.20, 0.15 OFRAC SOA VOC/NOX ratio 50.00, 50.00, 50.00, 50.00, 50.00, 50.00, 50.00, 50.00, 50.00, 50.00, 50.00, 50.00 VCNX Half-life decay blocks 0 NDECAY INPUT GROUP: 12 -- Misc. Dispersion and Computational Parameters Parameter Description Value Horizontal puff size for time-dependent sigma equations (m) 550 SYTDEP Use Heffter equation for sigma-z? (0 = no, 1 = yes) 0 MHFTSZ PG stability class above mixed layer 5 JSUP 13/06/2022 CALPUFF View Version 9.0.0 by Lakes Environmental Software Page 7 of 10
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