Parameter | Chemical constituents affecting the taste and domestic uses | Chemical constituents affecting the human health | |||||||||||||||||
pH | TDS | TH | Na | Ca | Mg | Cl | SO4 | Fe | Mn | Cu | Zn | Al | Pb | Cd | Cr | Ni | No3 | ||
Maximum permissible limit | 6.5 - 8.5 | 1000 | 500 | 200 | 200 | 150 | 250 | 250 | 0.3 | 0.4 | 2.0 | 3.0 | 0.2 | 0.01 | 0.003 | 0.05 | 0.02 | 45 | |
Sample exceed | 1, 8, 10, 25, 26, 27, 30, 31, 33 | 2, 20, 21, 22 | - | - | - | - | 2, 21, 22 | 7, 17, 19, 20, 21, 22 | - | 5, 7, 9, 15, 16, 17, 18, 19, 20, 21, 22, 23, 30 | - | - | 18, 21, 22, 23 | - | - | - | - | 2, 19, 20, 21, 22 | |