Ions | Min. | Max. | Mean | Median | Std. deviation | Variance | WHO (2011) |
---|---|---|---|---|---|---|---|
Ca2+ | 1.3 | 55 | 15.06 | 10 | 14.01 | 196.4 | 75 |
Mg2+ | 1 | 41 | 10.56 | 5.75 | 10.16 | 103.24 | 50 |
Na+ | 2.1 | 53 | 14.34 | 13.8 | 10.58 | 111.97 | – |
K+ | 0.4 | 12.2 | 3.1 | 2.7 | 2.53 | 6.41 | 10 |
Fe3+ | 0.09 | 0.92 | 0.34 | 0.24 | 0.23 | 0.05 | – |
As3+ | 0 | 0.0017 | 0.001 | 0.0011 | 0.0005 | 0 | <0.01 |
Cd2+ | 0.0008 | 0.0042 | 0.002 | 0.002 | 0.001 | 0 | 0.05 |
Zn2+ | 0.08 | 0.32 | 0.15 | 0.13 | 0.06 | 0 | 3 |
Cr3+ | 0 | 0.015 | 0.0023 | 0.002 | 0.003 | 0.002 | <0.05 |
\({\text{SO}}_{4}^{2 + }\) | 0.08 | 10 | 0.86 | 0.34 | 1.86 | 3.44 | 250 |
\({\text{PO}}_{4}^{3 - }\) | 0.08 | 2.3 | 0.48 | 0.34 | 0.5 | 0.25 | 2.5 |
\({\text{HCO}}_{3}^{{ - }}\) | 5 | 87.5 | 28.31 | 19 | 20.94 | 438.51 | 500 |
\({\text{NO}}_{3}^{{ - }}\) | 0.07 | 0.71 | 0.35 | 0.33 | 0.16 | 0.03 | 45 |
Cl− | 0.71 | 73.84 | 9.79 | 4.26 | 14.4 | 207.48 | 250 |
\({\text{NH}}_{4}^{ + }\) | 0.22 | 1.07 | 0.7 | 0.7 | 0.24 | 0.06 | 35 |
\({\text{CO}}_{{3}}^{{2 - }}\) | 4.3 | 18 | 9.35 | 8.95 | 3 | 9.03 | – |