![airpollut_dilution.jpg (63205 bytes)](images/airpollut_dilution_small.jpg) |
![airpollut_diffusion.jpg (44331 bytes)](images/airpollut_diffusion_small.jpg) |
![airpollut_turbdiffusion.jpg (53874 bytes)](images/airpollut_turbdiffusion_small.jpg) |
![airpollut_gaussplume_planview.jpg (53938 bytes)](images/airpollut_gaussplume_planview_small.jpg) |
Plume dilution. Boubel et al. (1994). |
Pollutant diffusion. Williamson (1973). |
Pollutant diffusion by turbulent eddies. Williamson (1973). |
Plan view of instantaneous plume, instantaneous
concentration and time averaged concentration. Williamson (1973). |
![airpollut_3dgaussplumea.jpg (67114 bytes)](images/airpollut_3dgaussplumea_small.jpg) |
![airpollut_3dgaussplumeb.jpg (102916 bytes)](images/airpollut_3dgaussplumeb_small.jpg) |
![airpollut_virtsourceht.jpg (34510 bytes)](images/airpollut_virtsourceht_small.jpg) |
![airpollut_plumerise.jpg (88633 bytes)](images/airpollut_plumerise_small.jpg) |
3-D Gaussian plume. Dobbins (1979). |
3-D Gaussian plume. Stern (1976). |
Virtual plume source: stack height + plume rise. Wark and
Warner (1981). |
Plume rise models. Lyons and Scott (1990). |
![airpollut_plumereflect.jpg (33728 bytes)](images/airpollut_plumereflect_small.jpg) |
![airpollut_plumereflect2.jpg (47614 bytes)](images/airpollut_plumereflect2_small.jpg) |
![airpollut_plumereflec_zconcen.jpg (31541 bytes)](images/airpollut_plumereflec_zconcen_small.jpg) |
![airpollut_xzconcenprof.jpg (41536 bytes)](images/airpollut_xzconcenprof_small.jpg) |
Plume reflection. Williamson (1973). |
Plume reflection. Wark and Warner (1981) |
Vertical pollutant concentration profiles before and after
plume reflection. Wark and Warner (1981). |
Pollutant concentration profiles downwind of stack. Wark and
Warner (1981). |
![airpollut_gndconcen_stab_x.jpg (21988 bytes)](images/airpollut_gndconcen_stab_x_small.jpg) |
![airpollut_plumesigma_z.jpg (54326 bytes)](images/airpollut_plumesigma_z_small.jpg) |
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Downwind, ground-centreline concentration profiles under
different stability conditions. Williamson (1973). |
Plume sigmas. sz with
downwind distance x for different Pasquill stability categories. From
Turner (1969), in Wark and Warner (1981) |
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