Such impure drinking water not only contains pesticides and insecticides but is also full of harmful chemicals like Arsenic and Flouride, which can cause acute illnesses like cholera, Dysentery, Diarrhoea, Jaundice, Tuberculosis and even cancer.
And herein lies the importance of different types of purifiers whose requirements depend on the quality of water and the place from where it is sourced. All in all, it is very important that we ensure water is treated and 100% purified before we drink it.