network information.
1. The water environment has improved, but the water pollution is still severe
In recent years, through the implementation of the three-year water pollution control plan of Longchang County and the pollution sources of Sanjiang River and Longshi River, key water pollution enterprises have been basically controlled, and the discharge of major pollutants in industrial wastewater has been gradually reduced. In 2114, the discharge of chemical oxygen demand in industrial wastewater in the county was 2197.25 tons. The discharge was reduced by 312.85 tons compared with the previous year, by 12.11%.
The results of water quality monitoring show that the water quality of major rivers and reservoirs in our county has been improved and improved to some extent compared with the previous year. However, at present, the standard discharge of industrial pollution sources is limited to the pollutant concentration, and the total discharge of pollutants by some enterprises is still at a high level. In addition, the wastewater from some enterprises is directly discharged into rivers without effective treatment. Urban domestic sewage, livestock and poultry breeding and rural non-point source pollution are becoming more and more serious, and the water quality of the main rivers and reservoirs in the county has not been fundamentally improved.
The water quality of the four main rivers in the county should meet the third-class water quality standard of the National Environmental Quality Standard for Surface Water. In fact, Sanjiang River is affected by the pollution of papermaking, brewing production wastewater, domestic sewage from the town and river silt, and the chemical oxygen demand discharged into the river every year is 1,811 tons, which is the worst river in our county, and the water quality is worse than that of the river. Longchang River is affected by urban domestic sewage and some production wastewater discharged by enterprises that fail to meet the standards, and its water quality is worse than Class V, which is the most polluted river in the county. The water quality of Longshi River and Yujian River is relatively good, but due to the substandard discharge of wastewater from livestock breeding and industrial enterprises in rural areas and the residual amount of pesticides and fertilizers entering the river, the water quality only reaches five categories. < P > As a centralized drinking water source for residents in our county, the water quality of Bailinsi Reservoir has been obviously improved after comprehensive improvement, with 19 of the 22 monitoring items reaching the second-class water quality standard, and the permanganate index and petroleum products reaching the third-class water quality. Of the 22 water quality monitoring items of Guyuhu Reservoir, 16 have reached the second-class water quality standard, the indexes of ammonia nitrogen, biochemical oxygen demand, petroleum and permanganate have reached the fourth-class water quality, and the total nitrogen has reached the fifth-class water quality, so the water eutrophication is still not optimistic. The above monitoring data show that the two reservoirs have not reached the second-class water quality standard of Environmental Quality Standard for Surface Water, and there is a big gap.
2. The air quality in urban areas is good. However, the problem of air pollution is outstanding
Through the adjustment of industrial structure and industrial energy structure around the county and the implementation of coal ban in the urban area, the air quality in the urban area has generally improved. Except for inhalable particulate matter, the annual and daily average values of sulfur dioxide and nitrogen dioxide in the air quality monitoring indicators have reached and surpassed the national secondary standards. Since the energy structure of our county is mainly coal-fired, For a long time, air pollution is mainly manifested as soot pollution with glass, coking and building materials industries as the main pollution sources. With the increase of coal consumption, the industrial waste gas emissions are increasing year by year. In 2114, the total industrial waste gas emissions in the county were 5,111.46 million standard cubic meters, and the sulfur dioxide emissions were 2,466.73 tons, up by 11% and 7% respectively over the previous year. Industrial coal-burning pollution is serious in some areas. With the acceleration of urbanization and industrialization, the air pollution in our county is developing from single soot pollution to mixed pollution. The pollution mainly comes from coal-burning waste gas, industrial waste gas, motor vehicle exhaust, cooking fume from restaurants, building construction and road dust. The air pollution is becoming more and more serious.
3. Noise pollution is serious. The quality of urban acoustic environment needs to be improved
With the sharp increase of motor vehicle traffic in our county, the widespread distribution of urban construction sites and home decoration places, and the increase of entertainment places, the level of urban environmental noise is getting higher and higher. In 2114, when monitoring the regional noise in the county, except for the industrial area, all the measuring points exceeded the standard of functional areas. The environmental problems caused by noise pollution are increasingly prominent.
Especially, the noise emitted by cultural centers, entertainment places in Huanlian Mall, and a large amount of smoke, oil smoke and noise emitted by night market stalls everywhere on Xinghe Lane and Longqiao Road have caused serious pollution to the living environment of passers-by and surrounding people. Deputies to the National People's Congress, members of the Chinese People's Political Consultative Conference (CPPCC), migrant workers, people from all walks of life and the surrounding people have strongly reacted. In addition, the shouting of mobile vendors walking through the streets, the loud speakers of shops soliciting customers, and the sound of iron wheels pushing containers at the Huanlian Small Commodity Market every morning have seriously affected the people's living environment. The noise disturbing the people from catering, entertainment, commerce and construction is very prominent and has become one of the hot issues of public complaints.