' 7 ' ■ ■ ■^••.•.". V***'.'.'.*.' I 



(WINDY) mm 



NIGHT 



NIGHT 





J I iiiii I I 



NIGHT 



1200 1800 2U00 0600 1200 1800 2M00 0600 1200 1800 2400 

 AUGUST 10 AUGUST II AUGUST 12 



EFFECT OF WIND ON DISSOLVED OXYGEN IN A 



TYPICAL RAW SEWAGE POND 



Figure 8 



64 



