Water chlorination is the mechanism by which chlorine or chlorine compounds like sodium hypochlorite are applied to water. This process is used in tap water to destroy certain bacteria and other microbes, as chlorine is highly toxic. Chlorination is used particularly to prevent the spread of waterborne diseases such as cholera, dysentery, and typhoid. Water fluorination is the regulated fluoride modification to a public water source to prevent tooth decay. Fluorinated water provides fluoride at an appropriate level for cavity prevention; this may occur naturally or by adding fluoride to it. ... Bottled water usually contains uncertain amounts of fluoride. Comment your views through Email: chemengineerapp@scitecjournals.com We are accepting Submission regarding the chemistry field directly online https://www.scitechnol.com/submission/ For more information check our website https://www.scitechnol.com/ you can also apply for membership or subscription.