Table 4. The concentration of REEs of SPM in the Jiulongjiang River.
(T) indicates the site located in tributary of the Beixi River.
| Sampling site | La (mg/kg) |
Ce (mg/kg) |
Pr (mg/kg) |
Nd (mg/kg) |
Sm (mg/kg) |
Eu (mg/kg) |
Gd (mg/kg) |
Tb (mg/kg) |
Dy (mg/kg) |
Ho (mg/kg) |
Er (mg/kg) |
Tm (mg/kg) |
Yb (mg/kg) |
Lu (mg/kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beixi River | ||||||||||||||
| 1 | 253 | 332 | 46.6 | 162 | 31.5 | 4.45 | 37.3 | 3.90 | 19.7 | 3.46 | 10.1 | 1.28 | 8.19 | 1.11 |
| 2 | 148 | 237 | 27.1 | 100 | 17.3 | 2.44 | 21.3 | 2.07 | 10.5 | 1.91 | 5.78 | 0.77 | 5.12 | 0.71 |
| 3 | 131 | 221 | 24.2 | 82.3 | 16.1 | 2.08 | 20.6 | 2.03 | 10.4 | 1.88 | 5.54 | 0.72 | 4.83 | 0.66 |
| 4(T) | 52.2 | 86.2 | 10.5 | 42.4 | 10.3 | 2.27 | 15.2 | 1.73 | 8.61 | 1.56 | 4.26 | 0.53 | 3.38 | 0.49 |
| 5 | 92.1 | 162 | 17.9 | 63.3 | 12.5 | 1.76 | 15.8 | 1.59 | 8.15 | 1.49 | 4.40 | 0.59 | 3.94 | 0.55 |
| 6(T) | 47.5 | 82.5 | 9.7 | 36.5 | 8.01 | 1.41 | 9.76 | 1.12 | 6.06 | 1.16 | 3.48 | 0.49 | 3.30 | 0.48 |
| 7(T) | 62.6 | 108 | 12.3 | 45.8 | 9.20 | 1.78 | 11.7 | 1.18 | 6.03 | 1.13 | 3.36 | 0.44 | 2.91 | 0.43 |
| 8(T) | 64.2 | 110 | 12.5 | 46.8 | 9.42 | 1.80 | 11.8 | 1.20 | 6.22 | 1.17 | 3.48 | 0.46 | 3.10 | 0.44 |
| 9 | 86.7 | 152 | 16.8 | 61.5 | 12.7 | 2.23 | 16.3 | 1.65 | 8.36 | 1.51 | 4.38 | 0.57 | 3.73 | 0.53 |
| 10 | 70.1 | 127 | 13.8 | 48.2 | 9.89 | 1.49 | 12.4 | 1.28 | 6.56 | 1.22 | 3.64 | 0.49 | 3.32 | 0.47 |
| 11(T) | 55.9 | 98.2 | 10.8 | 39.1 | 7.63 | 1.42 | 9.29 | 0.91 | 4.62 | 0.86 | 2.58 | 0.34 | 2.31 | 0.33 |
| 12 | 87.3 | 164 | 17.4 | 61.2 | 12.3 | 2.01 | 15.2 | 1.54 | 7.96 | 1.49 | 4.43 | 0.59 | 3.87 | 0.55 |
| 13 | 95.5 | 188 | 20.7 | 72.7 | 15.6 | 2.15 | 18.5 | 1.95 | 10.5 | 2.05 | 6.44 | 0.93 | 6.42 | 0.93 |
| 14 | 91.4 | 168 | 18.4 | 66.3 | 13.2 | 2.08 | 16.5 | 1.66 | 8.64 | 1.60 | 4.84 | 0.66 | 4.37 | 0.62 |
| 15 | 84.1 | 151 | 16.0 | 58.7 | 12.0 | 1.87 | 14.9 | 1.57 | 8.12 | 1.55 | 4.70 | 0.64 | 4.21 | 0.61 |
| 16 | 101 | 176 | 20.1 | 69.9 | 14.3 | 2.45 | 17.6 | 1.80 | 9.48 | 1.83 | 5.62 | 0.78 | 5.33 | 0.78 |
| 17 | 79.8 | 156 | 16.1 | 56.9 | 11.7 | 1.90 | 14.5 | 1.44 | 7.51 | 1.42 | 4.27 | 0.59 | 3.91 | 0.56 |
| 18 | 77.2 | 152 | 16.0 | 57.5 | 11.7 | 1.95 | 14.6 | 1.48 | 7.62 | 1.44 | 4.38 | 0.60 | 3.98 | 0.56 |
| 19 | 77.2 | 146 | 15.5 | 55.8 | 11.7 | 1.87 | 14.8 | 1.52 | 8.07 | 1.54 | 4.68 | 0.64 | 4.26 | 0.62 |
| 20 | 74.1 | 146 | 15.3 | 53.6 | 11.3 | 1.77 | 14.0 | 1.41 | 7.35 | 1.40 | 4.26 | 0.58 | 3.91 | 0.56 |
| 21(T) | 76.3 | 140 | 15.1 | 53.8 | 10.8 | 2.29 | 12.9 | 1.26 | 6.58 | 1.26 | 3.86 | 0.51 | 3.46 | 0.49 |
| Xixi River | ||||||||||||||
| 24 | 81.4 | 144 | 16.1 | 56.3 | 11.7 | 1.76 | 14.4 | 1.53 | 8.14 | 1.54 | 4.59 | 0.63 | 4.21 | 0.59 |
| 25 | 88.1 | 150 | 16.5 | 58.9 | 12.1 | 1.81 | 15.1 | 1.61 | 8.58 | 1.61 | 4.82 | 0.67 | 4.48 | 0.65 |
| 26 | 86.0 | 154 | 16.9 | 59.9 | 12.2 | 1.85 | 15.1 | 1.57 | 8.43 | 1.59 | 4.83 | 0.66 | 4.47 | 0.64 |
| 27 | 86.9 | 164 | 17.9 | 64.2 | 12.9 | 1.97 | 15.9 | 1.65 | 8.73 | 1.63 | 4.92 | 0.67 | 4.48 | 0.64 |
| 28 | 410 | 334 | 75.7 | 274 | 49.2 | 6.65 | 57.9 | 6.86 | 34.9 | 6.53 | 18.4 | 2.30 | 14.3 | 1.97 |
| 29 | 140 | 183 | 25.3 | 89.7 | 17.3 | 2.60 | 21.0 | 2.28 | 11.8 | 2.21 | 6.44 | 0.83 | 5.44 | 0.76 |
| 30 | 106 | 170 | 19.3 | 69.2 | 13.3 | 2.16 | 16.8 | 1.71 | 9.11 | 1.74 | 5.49 | 0.77 | 5.39 | 0.8 |
| 31 | 113 | 186 | 21.5 | 76.7 | 15.0 | 2.33 | 18.7 | 1.87 | 9.79 | 1.84 | 5.51 | 0.73 | 4.89 | 0.69 |
| 32 | 90.9 | 161 | 17.8 | 62.3 | 12.1 | 2.01 | 15.1 | 1.48 | 7.59 | 1.41 | 4.26 | 0.58 | 3.85 | 0.55 |
| 33 | 87.9 | 150 | 16.3 | 60.0 | 11.6 | 1.89 | 14.5 | 1.44 | 7.43 | 1.39 | 4.18 | 0.56 | 3.80 | 0.55 |
| Nanxi River | ||||||||||||||
| 34 | 25.3 | 45.1 | 5.1 | 20.0 | 4.08 | 0.91 | 4.48 | 0.43 | 2.18 | 0.39 | 1.18 | 0.16 | 1.07 | 0.15 |
| 35 | 106 | 157 | 18.2 | 63.8 | 12.3 | 1.93 | 15.4 | 1.59 | 8.71 | 1.68 | 5.26 | 0.73 | 4.91 | 0.72 |
| 36 | 81.6 | 120 | 15.5 | 53.0 | 10.5 | 1.83 | 12.4 | 1.34 | 7.33 | 1.43 | 4.45 | 0.63 | 4.30 | 0.62 |
| 37 | 86.5 | 145 | 16.3 | 64.6 | 12.4 | 2.14 | 16.9 | 1.58 | 8.40 | 1.59 | 4.95 | 0.70 | 4.37 | 0.66 |
| Estuary | ||||||||||||||
| 22 | 63.7 | 121 | 12.9 | 46.6 | 9.56 | 1.71 | 11.8 | 1.20 | 6.26 | 1.18 | 3.61 | 0.50 | 3.29 | 0.47 |
| 23 | 50.5 | 92.4 | 10.4 | 39.2 | 7.72 | 1.38 | 9.65 | 0.98 | 5.18 | 1.00 | 3.03 | 0.42 | 2.83 | 0.41 |
| 38 | 63.9 | 119 | 13.1 | 47.2 | 9.69 | 1.61 | 11.5 | 1.20 | 6.34 | 1.21 | 3.65 | 0.48 | 3.25 | 0.45 |
| 39 | 50.5 | 91.6 | 9.7 | 35.2 | 7.59 | 1.33 | 9.36 | 0.98 | 5.23 | 0.99 | 3.00 | 0.41 | 2.73 | 0.40 |
| 40 | 39.3 | 73.3 | 7.8 | 29.0 | 5.66 | 1.06 | 6.91 | 0.66 | 3.44 | 0.66 | 1.97 | 0.27 | 1.81 | 0.26 |
| 41 | 58.9 | 106 | 11.5 | 42.5 | 8.87 | 1.49 | 10.9 | 1.13 | 6.00 | 1.15 | 3.46 | 0.47 | 3.12 | 0.45 |
| 42 | 58.8 | 108 | 11.7 | 43.4 | 8.82 | 1.52 | 11.0 | 1.11 | 5.93 | 1.13 | 3.43 | 0.47 | 3.12 | 0.45 |