Potential ecological risk index (RI) for the investigated locations
| Sites | Summer season | Winter season | ||
|---|---|---|---|---|
| RI value | Overall ecological risk level | RI value | Overall ecological risk level | |
| 1 | 39.15 A | Low ecological risk | 143.39 e | Low ecological risk |
| 2 | 28.99 AB | Low ecological risk | 152.26 d | Moderate ecological risk |
| 3 | 32.78 AB | Low ecological risk | 160.35 c | Moderate ecological risk |
| 4 | 32.76 AB | Low ecological risk | 283.69 a | Moderate ecological risk |
| 5 | 37.88 B | Low ecological risk | 135.77 g | Low ecological risk |
| 6 | 38.81 A | Low ecological risk | 242.49 b | Moderate ecological risk |
| 7 | 29.04 AB | Low ecological risk | 141.03 f | Low ecological risk |
| 8 | 27.64 AB | Low ecological risk | 128.34 h | Low ecological risk |
| Average | 33.38 | Low ecological risk | 173.42 | Moderate ecological risk |
| Sites | Summer season | Winter season | ||
|---|---|---|---|---|
| RI value | Overall ecological risk level | RI value | Overall ecological risk level | |
| 1 | 39.15 A | Low ecological risk | 143.39 e | Low ecological risk |
| 2 | 28.99 AB | Low ecological risk | 152.26 d | Moderate ecological risk |
| 3 | 32.78 AB | Low ecological risk | 160.35 c | Moderate ecological risk |
| 4 | 32.76 AB | Low ecological risk | 283.69 a | Moderate ecological risk |
| 5 | 37.88 B | Low ecological risk | 135.77 g | Low ecological risk |
| 6 | 38.81 A | Low ecological risk | 242.49 b | Moderate ecological risk |
| 7 | 29.04 AB | Low ecological risk | 141.03 f | Low ecological risk |
| 8 | 27.64 AB | Low ecological risk | 128.34 h | Low ecological risk |
Note(s): Within columns, values followed by different letters are significantly different at α = 0.05
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