Tag: Water salinity

While the ocean contains approximately 35 grams of salt per liter, human kidneys can only produce urine with a maximum salt concentration of around 1.2%. This physiological limitation means that drinking water with a salinity level significantly higher than fresh water is impossible and dangerous.

According to the National Kidney Foundation, a normal blood sodium level in humans is between 135 and 145 milliequivalents per liter (mEq/L). However, a normal salt reading varies significantly depending on the context, from human health to pool water and drinking water, requiring different measurement standards and ideal ranges.