How many standards does the World Health Organization set for healthy water?

The physiological function of water is the difference between "stagnant water" and "living water". Clean water and safe water mainly emphasize the "thirst quenching" function and the "safety" of water, while going up a storey still higher, a healthy water emphasizes the "health" and physiological function of water on the basis of the "thirst quenching" function and "safety" of water. The author thinks that healthy water, as a complete scientific concept, should meet the following seven standards: 1. Does not contain toxic, harmful or odorous substances; 2. The hardness of water (calculated by CaCO3) is moderate (50-200mg/L); 3. The mineral content required by human body is moderate (including calcium content ≥ 8 mg/L); 4.4. The pH value is neutral and slightly alkaline; 5. The content of dissolved oxygen and carbon dioxide in water is moderate (dissolved oxygen in water ≥6mg/l, carbon dioxide10-30 mg/L); 6. Small water cluster (one of the indicators of water activity); 7. Physiological functions of water (permeability, solubility, metabolism, etc. ) strong. The above seven points can also be simply summarized as the following three points: first, pollution-free water-non-toxic, harmless and tasteless; Second, there is no degraded water-living water; Third, water to meet human physiological needs. (contains some beneficial minerals, neutral water, etc. Drinking water is "clean" only if it meets the first point, and "safe" only if it meets the first and third points. Only by doing three things can you achieve health by drinking water.