6. Discussions $ 
This study confirms that Remote sensing can be a 
vary useful tool in detecting water pollution. The 
changing spectral characteristics with the quality 
of water can be explored further to evolve a method 
of water quality monitoring in large areas using 
remote sensing techniques. 
From Fig.1 and 2, Spectral reflectance in visible 
region is higher than in Infra-red region. This is 
due to the water absorbing more I.R. radiation than 
visible, The percent reflectance increases with 
increasing turbidity. Clear water being blue in 
colour, absorbs light in all other regions to a 
large extent and peflects blue light only where as 
the fraction of light absorbed by turbid water in 
s due to its 
nded 
green, red and near Infrared is les 
colour which tends to be brown. This suspe 
particles scatter any light that is not absorbed 
by the water. Hence the large increase in reflec- 
tance in visible bands as turbidity increases. 
The scattering of light by the suspended matter 
is related both on particular concentration and the 
surface area of the particles. Mcreasing turbidity