What is acceptable TDS in drinking water?

The acceptable level of Total Dissolved Solids (TDS) in drinking water varies depending on the regulations and guidelines set by different countries and organizations. However, the World Health Organization (WHO) has provided guidelines for TDS in drinking water.

According to WHO, the recommended maximum TDS level in drinking water is 600 milligrams per liter (mg/L). This level is considered acceptable and safe for human consumption. However, it is important to note that higher TDS levels may not necessarily indicate unsafe water, as the composition and nature of the dissolved solids also play a role in determining water quality.

In some cases, TDS levels above 600 mg/L may be acceptable if the dissolved solids are primarily composed of harmless substances such as calcium, magnesium, and bicarbonates. However, if the TDS is high due to the presence of harmful contaminants like heavy metals, organic pollutants, or excessive salinity, the water may not be suitable for drinking.

It is also worth mentioning that individuals with specific health conditions or sensitivities may require stricter TDS limits. For instance, people with kidney disease or on a low-sodium diet may need to consume water with lower TDS levels to avoid potential health risks.

To ensure the safety and quality of drinking water, regular monitoring and testing of TDS levels, along with other water quality parameters, is crucial. This can be done by relevant authorities, water suppliers, or individuals using home testing kits or by sending water samples to certified laboratories for analysis.