Question
Describe quality parameters and standards for drinking water.
Solution
The following parameters must be followed before water is supplied for drinking purposes:
(i) It must be colourless and free from any odour or smell.
(ii) Its pH should be between 6·0 to 9·0.
(iii) It must be free from harmful chemicals.
(iv) It should be free from micro-organisms which lead to many diseases.
(v) Its turbidity should be less than 10 ppm.
(vi) It should be reasonably soft.
