Table 5 Hg distribution under different chloride concentration
| Initial experimental parameters | |||
| Chloride conc. (mM) | 1 | 200 | 400 |
| Hg conc. (μg L−1) | 14.3 | 16.2 | 15.2 |
| pH | 6.82 | 6.86 | 6.82 |
| Dissolved O2 (mg L−1) | 3.97 | 3.83 | 4.40 |
| Hg partition after reaching equilibrium | |||
| Dissolved Hg (%) | 2.7 | 7.9 | 4.8 |
| Hg in AC (%) | 92.2 | 99.5 | 93.6 |
| Particulate Hg (%) | 0.02 | nd | nd |