Turbidity is an optical property that broadly describes the clarity or cloudiness of water. It is related to colour, but has more to do with the loss of transparency due to the effect of suspended particles and colloidal material.
Turbidity impacts on aquatic ecosystems by dispersing sunlight and reducing the oxygen concentration. It also affects photosynthesis as well as the respiration and reproduction of fish. Suspended particles also contribute to the adhesion of many heavy metals and other toxic compounds. Turbidity is considered a measure of water quality: the more turbid the water, the lower its quality. Continue reading