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| Ion (mg g−1) | NH4+ | Mg2+ | Cl− | NO3− | SO42− | Total |
|---|---|---|---|---|---|---|
| 1 μm | 91.4 | 7.6 | 23.1 | 65.1 | 75.3 | 262.5 |
| 2 μm | 128.4 | 6.1 | 7.6 | 55.1 | 61.8 | 259.0 |
| 5 μm | 51.6 | 45.0 | 3.2 | 53 | 25.6 | 178.4 |
| 10 μm | 62.4 | 21.1 | 64.3 | 21.4 | 13.3 | 182.5 |
