In 2013, the city's total emissions of major pollutants chemical oxygen demand, ammonia nitrogen, sulfur dioxide, nitrogen oxides were 42,400 tons, 0.39 million tons, 24,000 tons, 22,500 tons, to complete the annual emission reduction tasks. Closed and banned 5 polluting enterprises, 23 polluting enterprises with limited or suspended treatment, and 13 medical and health units. The city has nine sewage treatment sites, treatment scale of 37.0 million tons / day, three garbage disposal sites.
The total length of the six major rivers monitored in the territory of 273 kilometers, of which Ⅰ ~ Ш water quality river section of 212 kilometers, accounting for 77.7% of the total length of the monitored river section; inferior V water quality river section of 61 kilometers, accounting for 22.3%. Water quality evaluation results for: river for the Ⅱ water quality, water quality is excellent; sand river, yinghe for the Ⅲ water quality, water quality is good; black river, three miles of the river, regina river water quality are inferior Ⅴ, pollution is still heavy.
In 2013, the city's regional ambient air quality is good, good and good more than 273 days, the good rate of 74.8%. The water quality compliance rate of the drinking water source of the river has been maintained at 100%. Regional environmental noise daytime equivalent sound level average value of 52.9 decibels, nighttime equivalent sound level average value of 44.8 decibels, the overall evaluation is good; traffic noise daytime equivalent sound level average value of 63.6 decibels, nighttime equivalent sound level average value of 54.2 decibels, the overall evaluation is good.
There is one primary protection zone for urban drinking water sources of the River, with an area of 4.37 square kilometers; one secondary protection zone for drinking water sources of the River, with an area of 16.04 square kilometers; and one quasi-protection zone for drinking water sources of the River, with an area of 40.2 square kilometers. There are 3 underground drinking water source primary protection zones with an area of 100 square kilometers; 2 underground drinking water source secondary protection zones with an area of 150 square kilometers.
In 2013, the city ****completed afforestation area of 45,300 mu, four sides of the planting of 1.9 million trees, forest cover rate of 26.35%. Urban area of 465,200 square meters of new greening, green coverage rate of 39.82%, per capita public **** green space area of 12.81 square meters.