Which parameter is measured by turbidity meters?

Turbidity meters are specifically designed to quantify the cloudiness or haziness of a fluid, primarily water. This measurement is crucial in water quality assessment because it indicates the presence of suspended particles, which can include sediments, microorganisms, and various contaminants. High turbidity levels can signify potential health risks, as these suspended particles might harbor pathogens or reduce water clarity, thus affecting light penetration and photosynthesis in aquatic environments.

The other parameters mentioned, such as total dissolved solids, pH level, and temperature, are measured by different instruments and techniques. Total dissolved solids refer to the amount of all organic and inorganic substances dissolved in water, while pH measures the acidity or alkalinity of the water. Temperature is an essential parameter for evaluating the physical condition of the water and its impact on biological processes. However, none of these measurements relate to turbidity, which is strictly concerned with the clarity or transparency of the fluid.