指标 | 春季 | 夏季 | 秋季 | 冬季 | ||||
| Pij范围 | Pij平均值 | Pij范围 | Pij平均值 | Pij范围 | Pij平均值 | Pij范围 | Pij平均值 |
DIN | 1.45~3.21 | 2.21 | 1.38~2.71 | 1.74 | 1.36~2.04 | 1.55 | 1.14~2.07 | 1.94 |
DIP | 1.56~2.00 | 2.04 | 1.11~2.00 | 1.37 | 0.67~0.89 | 0.79 | 0.44~0.89 | 0.71 |
CODMn | 0.30~0.41 | 0.35 | 0.23~0.34 | 0.25 | 0.18~0.32 | 0.25 | 0.28-0.34 | 0.30 |
pH | 0.46~0.50 | 0.47 | 0.52~0.63 | 0.60 | 0.54~0.71 | 0.64 | 0.36~0.83 | 0.74 |
DO | 0.34~0.44 | 0.39 | 0.38~0.53 | 0.45 | 0.00~0.32 | 0.16 | 0.13~0.32 | 0.25 |
Cu | 0.08~0.11 | 0.10 | 0.07~0.10 | 0.08 | 0.06~0.08 | 0.07 | 0.00~0.07 | 0.04 |
Pb | 0.03~0.05 | 0.04 | 0.02~0.06 | 0.04 | 0.01~0.02 | 0.02 | 0.01~0.03 | 0.02 |
Cr | 0.00~0.01 | 0.00 | 0.00~0.05 | 0.04 | 0.01~0.02 | 0.02 | 0.01~0.02 | 0.02 |
Ni | 0.04~0.08 | 0.06 | 0.04~0.09 | 0.06 | 0.02~0.06 | 0.05 | 0.04~0.09 | 0.06 |
Cd | 0.14~0.26 | 0.21 | 0.13~0.34 | 0.25 | 0.16~0.32 | 0.21 | 0.21~0.36 | 0.27 |