Effect of Fluoride Contamination in Public Drinking Water Sources in villages of Arasikere taluk, Hassan District, Karnataka, India

Water found on the Earth approximately 3 billion years ago. That was the time when the oceans were formed, the first life forms originated in the oceans through a process called Abiogenesis. It is the most abundant substance on the earth and is universally present in air, clouds, oceans, streams, springs, or glaciers. On the globe nearly 80% of the water is present in the oceans and most of the fresh water is trapped in the Icebergs. We have hardly around three percent as fresh water and only 0.3% of that water is accessible for our day-to-day usage and consumption. It is the only substance that simultaneously occurs in the three states namely solid, liquid and gaseous. One of the important function of water is that it acts as a heat regulator of the planet by the absorption and release of heat. (Y.H. Krishne Gowda.et.al.2023). Fluoride is the simplest anion of fluorine. Its salts and minerals are important chemical reagents and industrial chemicals, mainly used in the production of hydrogen fluoride for fluorocarbons. In terms of charge and size, the fluoride ion resembles the hydroxide ion.