The year-on-year improvement in PM2.5 concentration ranks first in the country. How can Guiyang achieve it?
Recently, the Ministry of Ecology and Environment announced the list of 168 key cities with air quality rankings from January to June 2024, with Guiyang City ranking third in the country. Among them, the composite index and fine particulate matter (PM2.5) Ranked first in the year-on-year improvement in concentration, which is the best result in history.
On the road of development with green as the background, Guiyang continues to explore the direction and path to support high-quality development with high-quality air pollution prevention and control, and has demonstrated its confidence and achievements.
Unleashing emission reduction potential in green and low-carbon transportation
New energy vehicles are my country's strategic measure to address climate change and promote green development. This year, Guiyang City has added 132 pure electric buses. The proportion of new energy vehicles in Guiyang's bus operating vehicles has exceeded 50%, and it is expected to achieve 100% electrification by 2025. It is estimated that compared with traditional fuel-fired buses, pure electric buses can reduce carbon dioxide emissions by about 34 tons per vehicle per year on average, effectively reducing the impact of vehicle exhaust on air quality, and improving citizens 'happiness while helping the "double carbon" goal.
On the way to promoting the electrification transformation, Guiyang City has successively issued the "Notice of the Municipal People's Government on Printing and Distributing Guiyang's Industrial Development Doubling Plan during the 13th Five-Year Plan" and the "General Office of the Municipal People's Government on Printing and Distributing Guiyang Gui 'an's Implementation Plan to Promote the Construction of" Electric Guiyang "Policies such as the Notice (2022 - 2025) support the development of the new energy vehicle industry. In 2023, the added value of industries above designated size in the new energy automobile industry in Guiyang City will increase by 21.9% year-on-year. Well-known new energy vehicle manufacturers such as Geely, BYD, and Changjiang Automobile have worked intensively in Guiyang and have become the leading force in the development of new energy vehicles in Guiyang.
"When I learned about this event, I secretly 'competed' with my friends to see who won today's TOP1." As the first batch of citizens to get free tickets on the "Building Carbon Benefit" platform of Guiyang City, Li Shi said happily. In order to advocate green and low-carbon travel methods, since 2023, Guiyang has distributed waves of coupons to pamper people, creating a good atmosphere for green living and low-carbon travel in the whole society.
With the opening of Guiyang Rail Transit Line 3, Guiyang has officially moved from the "transfer era" of two subways to the "network era" of three subway lines, and a one-hour living circle in the central Urban area of Guiyang has taken shape. Data shows that the urban traffic health index in the first and second quarters of this year is higher than that in 2023. Traffic conditions continue to improve, and traffic emission reduction potential continues to be released.
Establish an information sharing mechanism and continue to strengthen air pollution control
"In recent years, we have established an information sharing mechanism with the '12345 service hotline', weather forecast data, and remote sensing monitoring of smoky vehicles. We have taken air pollution issues reported by the masses as a breakthrough, strengthened departmental linkage, and continued to carry out air pollution rectification work." He Nengyong, head of the Atmospheric Department of the Guiyang City Ecological Environment Bureau, said.
Through the "12345 Service Hotline", after receiving complaints about the impact of soot on surrounding units and the public at the Southwest Food City Plaza in Guiyang City, the Guiyang City Ecological Environment Bureau implemented an upgrade of soot control facilities, so that the pollutant removal rate reached more than 85%, meeting the soot concentration required by the "Catering Industry Smoke Emission Standards" of ≤2mg/m3。This not only solves the problem of soot pollution in the office environment in the area, greatly reduces the occurrence of environmental protection complaints, has strong social effects and ecological and environmental effects, and also improves the precise control and special governance capabilities of air pollution prevention and control.
In addition, through the joint collaboration of multiple departments such as ecological environment, industry and information technology, transportation, housing and construction, urban management, public security, commerce, market supervision, natural resources, agriculture and rural areas, we have made efforts in urban non-point source control, industrial source management, mobile source management, and construction. Site management, comprehensive utilization of straw, etc., and carried out coordinated management of particulate matter and ozone pollution through a multi-pronged approach. In recent years, Guiyang City has successively promoted the implementation of ultra-low emission transformation and air pollution control for key enterprises in the steel, cement, chemical industry, automobile repair and spraying industries, and has continuously optimized the city's mobile source emission monitoring platform, remote sensing monitoring system and other data application and management, making illegal emission of volatile organic compounds "nowhere to escape."
According to He Nengyong, air quality faces huge challenges every Spring Festival, Qingming Festival, and Central Yuan Festival. "It's coming soon. This year, we are also launching a civilized sacrificial site inquiry channel on the official website of the Municipal Ecological Environment Bureau and the official WeChat to facilitate citizens to inquire about the city's civilized sacrificial areas and standardized centralized sacrificial sites to achieve information sharing and reduce fire hazards. At the same time, we can 'reduce pressure' on air quality."
Scientifically manage "qi" and protect "Guiyang Blue"
In recent years, Guiyang City Bureau of Ecology and Environment has explored the introduction of advanced technologies and big data analysis methods, used various "black technologies" for air pollution control, and continuously explored Guiyang's experience in air pollution control.
Walking into the Guiyang City Environmental Air Quality Prediction and Forecasting Center, staff are sitting at their desks to analyze thousands of monitoring data and graphics. Zhang Chunhui, an engineer in the Air Quality Prediction and Forecasting Office of the Guiyang City Environmental Information Center, said that air quality prediction and forecasting mainly uses big data thinking to comprehensively integrate atmospheric environment monitoring data, emission data of pollution sources, and data of meteorological fields through models, coupled with manual revisions by forecasters, to carry out forecasting work. After calculations, multiple data and reports are formed, which can provide important technical support for predicting the ambient air quality of Guiyang City in the next 7, 10 and 30 days.
In addition, Guiyang City has compiled and completed a list, distribution map and refined management library of potential air pollution sources in key areas to achieve refined management of pollution sources. Introduce analytical services such as mobile navigation monitoring, lidar, and meteorological models, build an integrated "sky, air, and earth" field comprehensive observation system, and continue to carry out regional pollution source sampling, air pollution law research, satellite remote sensing data observation, and drone aerial photography and other work. An air pollution case database was established, the key driving factors and main transmission channels of air pollution in Guiyang City were initially identified, and response measures for sub-regional, seasonal, and time-specific control in Guiyang City were proposed.
In the next step, Guiyang City will focus on the goal of continuously consolidating and improving environmental air quality, with "new achievements in the construction of ecological civilization" as the general requirement to reduce fine particulate matter (PM2.5) concentration as the main line, focusing on controlling industrial emissions and urban dust pollution, promoting the emission reduction of nitrogen oxides (NOx) and volatile organic compounds (VOCs), continuing to make efforts in pollution control and atmospheric environment management, and achieving in-depth integration in analysis and research and atmospheric control, and continuing to protect "Guiyang Blue" through scientific management of "gas".
In early autumn, in Guiyang, the sky is clear and the wind is smooth. Walking on the streets, the fresh and high-quality air allows people to breathe freely. The excellent ecological environment has become Guiyang's biggest development advantage and competitive advantage. Seeing blue when you look up, seeing green when you push the window, and seeing scenery when you go out are becoming standard standards in people's lives in Guiyang.
