Table 3. The molality of metal oxides, CaO/Na2O ratio, and the CIA value of SPM in the Jiulongjiang River.
(T) indicates the site located in tributary of the Beixi River.
| Sampling site | Al2O3 (mol/kg) |
CaO (mol/kg) |
K2O (mol/kg) |
Na2O (mol/kg) |
CaO/Na2O | CIA (%) |
|---|---|---|---|---|---|---|
| Beixi River | ||||||
| 1 | 3.25 | 0.07 | 0.22 | 0.04 | 1.8 | 91.5 |
| 2 | 3.10 | 0.06 | 0.16 | 0.03 | 2.4 | 93.4 |
| 3 | 3.17 | 0.06 | 0.20 | 0.03 | 2.4 | 92.4 |
| 4(T) | 1.61 | 0.12 | 0.19 | 0.06 | 2.1 | 83.9 |
| 5 | 2.80 | 0.07 | 0.22 | 0.03 | 2.4 | 90.9 |
| 6(T) | 2.83 | 0.09 | 0.29 | 0.04 | 2.5 | 88.4 |
| 7(T) | 2.56 | 0.12 | 0.29 | 0.03 | 4.4 | 88.0 |
| 8(T) | 2.57 | 0.12 | 0.29 | 0.03 | 4.3 | 88.0 |
| 9 | 2.61 | 0.09 | 0.25 | 0.04 | 2.5 | 88.8 |
| 10 | 2.83 | 0.07 | 0.23 | 0.03 | 2.6 | 90.7 |
| 11(T) | 2.61 | 0.12 | 0.26 | 0.02 | 6.5 | 89.7 |
| 12 | 2.77 | 0.06 | 0.24 | 0.02 | 2.5 | 90.8 |
| 13 | 3.36 | 0.05 | 0.13 | 0.01 | 6.0 | 95.7 |
| 14 | 2.74 | 0.06 | 0.21 | 0.02 | 2.9 | 91.6 |
| 15 | 2.70 | 0.07 | 0.23 | 0.03 | 2.2 | 90.3 |
| 16 | 3.00 | 0.11 | 0.19 | 0.04 | 2.6 | 91.7 |
| 17 | 2.87 | 0.04 | 0.22 | 0.02 | 2.0 | 91.7 |
| 18 | 2.83 | 0.07 | 0.21 | 0.02 | 3.2 | 91.9 |
| 19 | 2.80 | 0.08 | 0.22 | 0.03 | 2.4 | 90.9 |
| 20 | 2.86 | 0.06 | 0.23 | 0.02 | 2.6 | 91.4 |
| 21(T) | 2.82 | 0.32 | 0.25 | 0.16 | 2.1 | 83.2 |
| Xixi River | ||||||
| 24 | 2.96 | 0.08 | 0.19 | 0.02 | 3.1 | 92.8 |
| 25 | 3.04 | 0.07 | 0.19 | 0.03 | 2.7 | 92.4 |
| 26 | 3.06 | 0.07 | 0.17 | 0.02 | 3.2 | 93.6 |
| 27 | 3.17 | 0.08 | 0.19 | 0.02 | 3.9 | 93.2 |
| 28 | 2.71 | 0.07 | 0.24 | 0.03 | 2.1 | 90.0 |
| 29 | 2.93 | 0.06 | 0.19 | 0.02 | 3.0 | 92.7 |
| 30 | 3.00 | 0.10 | 0.20 | 0.05 | 1.9 | 90.9 |
| 31 | 3.07 | 0.05 | 0.21 | 0.03 | 1.7 | 91.9 |
| 32 | 2.80 | 0.09 | 0.18 | 0.04 | 2.3 | 91.5 |
| 33 | 2.83 | 0.09 | 0.20 | 0.05 | 1.7 | 90.4 |
| Nanxi River | ||||||
| 34 | 1.23 | 1.33 | 0.24 | 0.23 | 5.8 | 63.7 |
| 35 | 2.69 | 0.08 | 0.16 | 0.06 | 1.4 | 90.6 |
| 36 | 2.68 | 0.08 | 0.15 | 0.04 | 1.9 | 92.1 |
| 37 | 4.11 | 0.21 | 0.41 | 0.17 | 1.3 | 84.6 |
| Estuary | ||||||
| 22 | 2.60 | 0.11 | 0.23 | 0.05 | 2.2 | 88.7 |
| 23 | 2.75 | 0.13 | 0.23 | 0.05 | 2.7 | 89.3 |
| 38 | 2.69 | 0.08 | 0.20 | 0.04 | 2.3 | 90.6 |
| 39 | 2.46 | 0.11 | 0.24 | 0.06 | 1.8 | 87.2 |
| 40 | 2.56 | 0.06 | 0.29 | 0.08 | 0.7 | 85.6 |
| 41 | 2.60 | 0.09 | 0.23 | 0.05 | 1.8 | 88.7 |
| 42 | 2.60 | 0.09 | 0.24 | 0.05 | 1.8 | 88.4 |