| Year | Industrial Waste-water (IW) Discharges (10 kt) | SO2 Emissions (10 kt) | Comprehensive Utilization Rate of Industrial Solid Waste (%) | Numbers of Environmental Emergencies |
| 2011 | 70,720 | 48.72 | 78.70 | 12 |
| 2012 | 67,175 | 46.98 | 81.50 | 20 |
| 2013 | 70,972 | 45.02 | 83.99 | 6 |
| 2014 | 69,580 | 44.06 | 84.44 | 9 |
| 2015 | 71,436 | 42.00 | 88.48 | 8 |