o 



DEPOSITION GRADIENTS AND ISOLATION 

 lO lOO I.OQO lO.OOO 



Distance in metres 



Figs. 25 to 27. — Dilution of spore-cloud by eddy diffusion. Calculated for ;h = 1-75 

 (also m = 1-24 and 2-0), expressed as logarithms of: d, dw, diw, D (and also for daw with 

 width of 100 metres). 



Fig. 25. — Deposition coefficient, p = 0-05. 



