| Pb (mg/kg) | Fe (mg/kg) | Cu (mg/kg) | Cr (mg/kg) | Zn (mg/kg) | As (mg/kg) |
Spring, SS1 | <30.0 | 25200.00 ± 58.00 | 31.40 ± 1.10 | 83.10 ± 2.87 | 81.30 ± 1.99 | 2.76 ± 0.01 |
Spring, SS2 | <30.0 | 25500.00 ± 61.00 | 31.80 ± 0.90 | 59.40 ± 2.12 | 89.90 ± 3.22 | 4.58 ± 0.02 |
Summer, SS1 | <30.0 | 27600.00 ± 32.00 | 32.10 ± 0.70 | 83.60 ± 2.66 | 93.00 ± 1.42 | 1.88 ± 0.01 |
Summer, SS2 | <30.0 | 26400.00 ± 59.00 | 32.10 ± 1.20 | 66.00 ± 1.89 | 91.50 ± 2.89 | 4.44 ± 0.03 |
Autumn, SS1 | <30.0 | 28100.00 ± 45.00 | 30.60 ± 0.50 | 81.70 ± 1.57 | 90.10 ± 1.08 | 2.40 ± 0.02 |
Autumn, SS2 | <30.0 | 23600.00 ± 52.00 | 31.00 ± 0.20 | 63.60 ± 1.75 | 97.00 ± 3.55 | 4.37 ± 0.01 |
Winter, SS1 | <30.0 | 28200.00 ± 42.00 | 34.00 ± 0.90 | 79.20 ± 1.28 | 97.00 ± 2.80 | 2.14 ± 0.01 |
Winter, SS2 | <30.0 | 21000.00 ± 20.00 | 37.00 ± 0.40 | 58.40 ± 1.97 | 78.70 ± 1.43 | 4.80 ± 0.02 |