How to mesure Turbidity ?
Turbidity is a mesure of how much light is being absorbed by the water.
For intance:
if turbidity is equal to 100 % , it means that no light can go through the water ; and if turbidity is equal to 0 % , the water is completely transparent.
We mesured the turbidity at two wavelengths :
– at 550 nm, when light is absorbed by detritus
– at 460 nm, when light is absorbed by clorophyll