You can see here how the de-coloration or discoloration of the teeth is happening and you can see less than 1.5 milligrams per liter fluoride, there is no problem but if the fluoride concentration in the water is around 1.5 to 3, teeth Fluorosis can happen, 3.1 to 6 less skeletal Fluorosis and greater than 6, okay, more skeletal Fluorosis.
की नई पार्टी " कदीमा " ( अग्रगामी )Samanantar Samanantar