Dust sizes and elemental compositions (wt%).
| Si | Ca | Na | S | Mg | K | Fe | Cl | O | |
|---|---|---|---|---|---|---|---|---|---|
| Size ≥1.2 μm | 11.7 | 8.2 | 2.1 | 1.3 | 2.4 | 0.8 | 1.2 | 0.4 | Bal. |
| Size <1.2 μm | 10.3 | 7.4 | 2.7 | 2.2 | 1.4 | 1.2 | 1.1 | 1.1 | Bal. |
| Dust residues | 9.5 | 7.1 | 1.9 | 1.4 | 1.9 | 1.1 | 0.9 | 0.9 | Bal. |
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