| Working face name | Average daily output of working face during the statistical period/t | Average gas emission from working face during the statistical period/m3∙min−1 | Without considering the calculated value of coal outflow in the lower section of the goaf/m3∙min−1 | Percentage of difference/% |
| W1139 | 2500 | 11.9 | 5.92 | 50.25 |
| W1123 | 2600 | 12.6 | 6.16 | 51.11 |
| W1107 | 2700 | 14.2 | 5.23 | 63.17 |
| E1133 | 2600 | 13.4 | 5.93 | 55.75 |
| E1117 | 2600 | 13.8 | 6.04 | 56.23 |