turbidité

Turbidity is a measure of the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of water quality. Turbidity is an important water quality parameter because particles in the water can interfere with light transmission for aquatic plants, block intake screens of water supply intakes, and clog water treatment processes. High turbidity can also indicate the presence of pollutants or pathogens. Turbidity is typically measured using a turbidimeter, which measures the light transmitted through the sample. The result is expressed in nephelometric turbidity units (NTU). Turbidity can be caused by a variety of factors, including soil erosion, runoff, and the presence of microorganisms. It can be reduced through various water treatment methods, such as coagulation, flocculation, and sedimentation. Monitoring turbidity is crucial for maintaining water quality and ensuring the safety of water supplies.