The analysis shows that dust pollution has become one of the main reasons that affect the ambient air quality in Guiyang, because with the rapid development of urbanization and industrialization in Guiyang, many construction sites are started at the same time, and dust pollution sources are widely distributed, belonging to unorganized emission sources, and some construction sites are not in accordance with regulations.
The key is to curb dust pollution and block the source. Since 20 13, the departments of housing and construction, urban management and traffic control have jointly enforced the law in view of the present situation of dust pollution on construction sites and roads in Guiyang, intensified the inspection of construction sites and strengthened the daily supervision of engineering transport vehicles and muck trucks.
According to statistics, last year, the municipal and district housing and construction bureaus inspected 1276 projects under construction and issued 1 156 rectification notices. For 24 construction sites with many problems in inspection and supervision, informed criticism will be given to 33 construction units and 19 supervision units in batches, and the construction units and supervision units will be suspended from participating in project bidding activities and undertaking new construction projects until the rectification and review meet the requirements, and the bad behaviors of the construction units and supervision units will be recorded and included in the credit files.
At the same time, Guiyang Public Security Traffic Management Bureau investigated and dealt with all kinds of traffic violations of engineering transport vehicles (including muck trucks) that affected air quality, especially dust, and investigated and dealt with 3245 traffic violations of engineering transport vehicles; The Municipal Urban Management Bureau dispatched more than 9,860 vehicles and more than 58,000 sanitation workers to manually clean sanitation facilities (garbage bins, trash cans, garbage collection boxes, etc.). ) Every day, the average daily manual cleaning is 6.5438+0.723 million square meters, and the mechanical washing area is 9.4 million square meters; In 20 13, the municipal environmental protection inspection agency * * inspected 300,689 motor vehicles, with a regular environmental inspection rate of 95.63%. The city * * * issued (including renewal) 290,000 sets of environmental protection signs for motor vehicles, which laid the foundation for Guiyang to carry out classified management of motor vehicles.
Since March this year, Guiyang has started a new round of joint inspection of ambient air quality, intensified efforts to rectify dust pollution in construction sites, and focused on night construction, road dust and muck transportation, and dust pollution in non-coal mines through unannounced visits and joint inspection at night.
During this period, Guiyang Housing and Urban-Rural Development Bureau strictly implemented grid management for 665 construction sites, and put the supervision responsibility of civilized construction on every supervisor, and supervised the vehicle cleaning and leakage prevention, muck and material coverage, dust suppression measures, and hardening and cleaning of entrances and exits.
At the same time, Guiyang Housing and Urban-Rural Development Bureau also cooperated with the Municipal Urban Management Bureau and the Municipal Public Security Traffic Management Bureau to conduct joint inspections at night, and set up checkpoints at key sections of Guiyang every night to check the passing muck trucks, commercial concrete trucks and gravel transport vehicles.
A multi-pronged approach—
Preliminary results of each stage
In addition to dust control, Guiyang also played a "combination boxing" to carry out air pollution prevention and control work from six aspects, and achieved phased results.
Automobile exhaust pollution has become an important air pollution source. In order to reduce the negative impact of excessive motor vehicle exhaust on air quality, Guiyang Motor Vehicle Pollution Prevention and Control Management Center has carried out regular environmental inspection of motor vehicles, standardized motor vehicle maintenance business and random inspection of motor vehicles and exhaust pollution roads. In 20 13, the city's environmental inspection agency * * inspected 300,689 motor vehicles, with a regular environmental inspection rate of 95.63%, and 275 motor vehicles were randomly selected throughout the year, effectively eliminating vehicles with unqualified exhaust emissions.
Gradually promote the treatment of industrial waste gas. In recent years, in order to save energy and reduce pollution, Guiyang has adjusted the industrial layout of the whole city, completed the relocation of Guiyang Cigarette Factory and Guizhou Cement Factory, and promoted the relocation of Guizhou Tire Co., Ltd. and Shougang Guiyang Special Steel Factory. Gradually complete a number of enterprise waste gas treatment projects such as desulfurization of flue gas from coal-fired boilers of Chinalco Guizhou Branch, power generation from yellow phosphorus tail gas of Guizhou Qianneng Tianhe Phosphorus Industry Company, and sodium formate from yellow phosphorus tail gas of Qingli Tianmeng Chemical Company. Formulate the Comprehensive Improvement Plan for the Prevention and Control of Industrial Air Pollution in Guiyang City, take 67 industrial enterprises as key prevention and control enterprises, designate special personnel to take charge of prevention and control, and conduct a comprehensive inspection on the operation of environmental protection facilities, smoke and dust pollution, and exhaust gas discharge up to standard. Relocation and transformation of enterprises with high energy consumption and high pollution in the central city. Among them, Guiyang Weichunyuan Food Co., Ltd., Guiyang Lekang Bean Industry Co., Ltd. and Guiyang Sanlian Dairy Co., Ltd. plan to move out of the central city this year, and Guizhou Laoandie Food Co., Ltd. has included coal-fired boilers in the work plan of gas boilers. Denitrification projects of five cement production lines, namely Guiyang Conch Panjiang Cement Co., Ltd., Guizhou Jin Jiu Cement Co., Ltd., Guiyang Orchid Cement Co., Ltd., Guizhou Miao Ling Building Materials Co., Ltd. and Kaiyang Zijiang Cement Co., Ltd., have been completed, and it is estimated that the annual emission reduction of nitrogen oxides/kloc-0.40 million tons or more.
The renovation project of catering oil fume was launched in an all-round way. At present, Guiyang has completed the investigation of catering units around ten key areas 1 km, of which 150 catering oil fume units have installed oil fume purification devices, and the remaining 32 will complete the installation and rectification of oil fume purification devices before June 30, 20 14, so as to achieve the discharge standards.
Speed up the control of oil and gas pollution. At present, Guiyang has completed the investigation of the city's oil depots, tankers and gas stations. Among them, there are 202 gas stations in operation in the city, and the oil and gas recovery and treatment in the city will be completed before 20 15 1.
Strengthen the management of non-coal mines. At present, Guiyang has completed a thorough investigation of non-coal mines. There are 93 non-coal mines with valid mining licenses and 29 non-coal mines with expired mining licenses in the six urban areas. At present, applications for the establishment, extension and expansion of mining licenses for non-coal mines in the planning areas of six cities have been stopped, and non-coal mines with mining rights have been gradually banned and closed.
Actively promote environmental greening. In 20 13, Guiyang comprehensively controlled rocky desertification, completed the plan of vegetation restoration and afforestation, returning farmland to forests and closing hillsides to facilitate afforestation, and restored 240,200 mu of forest vegetation in cities and counties. At present, the afforestation task has been completed, and the completion rate is 100%. At the same time, the overall greening landscape improvement project along and around the "Second Ring Road" has been completed, and 390,000 cubic meters of planting soil has been backfilled. ?