What does total dissolved solids (TDS) refer to in water analysis?

Total dissolved solids (TDS) is a measure of the concentration of all organic and inorganic substances that are dissolved in water. This includes a wide range of constituents, such as minerals, salts, metals, and other compounds that can exist in various concentrations. The significance of TDS in water quality analysis lies in its ability to provide insights into the overall composition of the water and its suitability for various purposes, such as drinking, agricultural use, or industrial processes.

Understanding TDS is crucial because high levels can affect water taste, clarity, and its overall quality. Additionally, elevated TDS levels might indicate an influence from pollution sources or runoff. Therefore, evaluating the concentration of all dissolved substances in water helps determine its safety and usability in various applications.