Metal | Sea Water | Nile River | |
Typical Sea Water* | Measured | ||
Chloride (Cl−) | 18.980 | 20.30 | 25.2 |
Sodium (Na+) | 10.556 | 12.200 | 1.6 |
Sulfate () | 2.649 | 2.640 | 17.8 |
Magnesium (Mg2+) | 1.262 | 1.423 | 15.1 |
Calcium (Ca2+) | 400 | 388 | 31.2 |
Potassium (K+) | 380 | 453 | 3.2 |
Bicarbonate () | 140 | - | - |
Bromide (Br−) | 65 | 125 | - |
Fluoride (F−) | 1 | - | - |
Iodide (I−) | <1 | - | - |