Symbol Definition

A Linear decay term for vertical dispersion in

Schulman-Scire downwash (dimensionless)

Ae Effective area for open pit emissions (dimensionless)

D Exponential decay term for Gaussian plume equation


DB Brownian diffusivity (cm/s)

Dr Relative pit depth (dimensionless)

de Effective pit depth (m)

dp Particle diameter for particulate emissions (μm)

ds Stack inside diameter (m)

Fb Buoyancy flux parameter (m4/s3)

Fd Dry deposition flux (g/m2)

Fm Momentum flux parameter (m4/s2)

FQ Plume depletion factor for dry deposition


FT Terrain adjustment factor (dimensionless)

Fw Wet deposition flux (g/m2)

f Frequency of occurrence of a wind speed and stability

category combination (dimensionless)

g Acceleration due to gravity (9.80616 m/s2)

hb Building height (m)

he Plume (or effective stack) height (m)

hs Physical stack height (m)

hter Height of terrain above stack base (m)

hs´ Release height modified for stack-tip downwash (m)




n1001 - n1002 - n1003 - n1004 - n1005 - n1006 - n1007 - n1008 - n1009 - n1010 - n1011 - n1012 - n1013 - n1014 - n1015 - n1016 - n1017 - n1018 - n1019 - n1020 - n1021 - n1022 - n1023 - n1024 - n1025 - n1026 - n1027 - n1028 - n1029 - n1030 - n1031 - n1032 - n1033 - n1034 - n1035 - n1036 - n1037 - n1038 - n1039 - n1040 - n1041 - n1042 - n1043 - n1044 - n1045 - n1046 - n1047 - n1048 - n1049 - n1050


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