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Turbidity Instruments

Turbidity is the measure of relative clarity of a liquid. It is an optical characteristic of water and is a measurement of the amount of light that is scattered. The higher the intensity of scattered light, the higher the turbidity. Scattering in water is caused by suspended sediments – sand, silt and clay plus Flora (phytoplankton), Fauna (zooplankton) and air bubbles. Turbidity is due to inelastic scattering: light is scattered in all directions, with no change in wavelength.