2018年4月份公开环境信息
| 日期 | COD(mg/l) | 日期 | COD(mg/l) |
| 2018.4.1 | 130.5 | 2018.4.16 | 173.9 |
| 2018.4.2 | 184.7 | 2018.4.17 | 136.7 |
| 2018.4.3 | 190.3 | 2018.4.18 | 172.2 |
| 2018.4.4 | 156.2 | 2018.4.19 | 142.8 |
| 2018.4.5 | 163.8 | 2018.4.20 | 181.8 |
| 2018.4.6 | 155.2 | 2018.4.21 | 176.6 |
| 2018.4.7 | 164.3 | 2018.4.22 | 135.5 |
| 2018.4.8 | 197.6 | 2018.4.23 | 151.9 |
| 2018.4.9 | 181.1 | 2018.4.24 | 196.8 |
| 2018.4.10 | 166.1 | 2018.4.25 | 176.3 |
| 2018.4.11 | 161.8 | 2018.4.26 | 130.3 |
| 2018.4.12 | 139.5 | 2018.4.27 | 174.1 |
| 2018.4.13 | 137.6 | 2018.4.28 | 139.1 |
| 2018.4.14 | 147.6 | 2018.4.29 | 141.7 |
| 2018.4.15 | 182.6 | 2018.4.30 | 158.1 |