Turbidity is the water quality parameter that measures what property?

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Turbidity is about how clear or cloudy the water is, caused by suspended particles such as sediment, silt, or organic matter. It measures the level of cloudiness or haziness in the water because these particles scatter light; more scattering means higher turbidity. This is usually reported in nephelometric turbidity units. Turbidity matters in treatment because higher particle levels can shield microbes from disinfection and indicate filtration performance issues. It does not measure color, taste and odor, or temperature, which relate to different water properties.