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  1. The Gaussian air pollutant dispersion equation (discussed above) requires the input of H which is the pollutant plume's centerline height above ground level—and H is the sum of Hs (the actual physical height of the pollutant plume's emission source point) plus Δ H (the plume rise due to the plume's buoyancy).
    en.wikipedia.org/wiki/Atmospheric_dispersion_mod…
    The Holland stack rise equation is: v d / AT AH = I 1.5 + 2.68 X 10 p T s Where: AP = the rise of the plume above the stack (meters) v = stack gas velocity (m/sec) d = the inside stack diameter (meters) u = wind speed (m/sec) p = atmospheric pressure (mb) Tg = stack gas temperature (OK) AT = as in equation (1) and 2.68 X 10~3 is a constant having units of (m-1 mb~l). 14
    nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9100OX8…
    The plume rise relationships are as follows: (68) where x f = downwind distance of final plume rise (m) x* = distance at which atmospheric turbulence begins to dominate entrainment.
    mepas.pnnl.gov/mepas/formulations/air/4.0/4_11.ht…
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  5. SI:406 - Effective Stack Height/Plume Rise - US EPA

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