Many schools in our country lack proper drinking water. The water provided in many schools may look clean and fresh but they can simultaneously causes many diseases like typhoid, cholera etc.
After biological factors there are certain elements such as lead, mercury, arsenic, etc. that can cause severe disease and disorder. While many schools have water filters but they only have a limited capability in order to kill harmful bacteria and heavy metals as separation of heavy metals requires high end purifiers which are much costly and require regular maintenance. As of now there are many cases that are related to severe disease and the main cause behind them is the water, especially in many areas the ground water contains higher level of these toxic elements. Also the disease caused by them is severe and have high death rate if not recognised earlier.
For eg- 1) Harmful bacteria present in water can cause Typhoid, cholera, amoebic dysentery, etc.
2) Arsenic can cause several types of cancers like lung, kidney, skin, bladder and also many cardiovascular diseases 3) Lead can cause Encephalopathy & Cognitive Damage, Severe Anaemia, and chronic kidney failures. 4) Mercury can cause diseases like Neurological Disorders (Minamata Disease), and Nephrotic Syndrome..
I tested many water sources in many secondary schools and from many public water sources like in railway stations, bus stands and public hand pumps and the result was same , many lacks proper cleanliness and the water was pale yellow and smelling while I cant test for bacteria and heavy metals because it is quite expensive to do so but there are many videos in social media platforms where many people test the public water and result was below the the safe unit which reflects high volume of water dissolved heavy metals. This is not only a problem of students or teacher but of every guy who drink public water. And the disease caused by them can lead to their economic downfall.