Continue to fight the battle against pollution in depth.

　　A good ecological environment is an inherent requirement for realizing the sustainable development of the Chinese nation, a priority area for improving people’s livelihood and well-being, and an important foundation for building a beautiful China.

　　General Secretary of the Supreme Leader pointed out: "Protecting the ecological environment means protecting the productive forces, and improving the ecological environment means developing the productive forces." The Decision of the Third Plenary Session of the 20th CPC Central Committee put forward: "Improve the system and mechanism of precise pollution control, scientific pollution control and pollution control according to law".

　　All localities and departments adhere to precise pollution control, scientific pollution control and pollution control according to law, constantly innovate working mechanisms, continue to fight the defense of blue sky, clear water and pure land in depth, and jointly promote carbon reduction, pollution reduction, greening and growth to promote the continuous improvement of ecological environment quality.

　　Continue to fight the blue sky defense war in depth, and the overall environmental air quality continues to improve.

　　"The inspection found that about 2,000 square meters of bare soil in a construction site in Guangyang District was incomplete, the main roads were not hardened, and the roads were seriously dusty. Please rectify immediately! " This is not long ago, the inspection information released by the site supervision working group of Langfang Ecological Environment Bureau of Hebei Province.

　　In order to fight the blue sky defense war in depth, this year, Langfang City Ecological Environment Bureau insisted on scientific and accurate pollution control according to law, formulated and issued the Work Plan for Comprehensive Control of Air Pollution in Langfang City in 2024, innovated the working mechanism, and promoted the effectiveness of air pollution control.

　　Dust from roads and construction sites is the main source of PM10. Langfang City Ecological Environment Bureau established an on-site inspection mechanism. In view of the dust pollution in the main city, the inspection team went deep into more than 130 construction sites to conduct inspections, found problems and immediately handed them over. At 5: 00 pm on the day when the patrol information was released, feedback was received in the site supervision information group: it was ordered to rectify the cover completely, sprinkle water regularly to reduce dust, and attach photos of on-site rectification.

　　"In order to improve the accuracy of air pollution control, we have also established a key county ‘ Weekly consultation mechanism ’ . Hold a meeting every Friday to report problems and judge the recent air quality. The expert group analyzed the situation and made suggestions to promote the continuous improvement of the quality of the atmospheric environment. " Yin song, director of Langfang city ecological environment bureau, introduced.

　　With the coordinated development of Beijing-Tianjin-Hebei, the joint prevention and control of regional air pollution has been continuously strengthened.

　　At the Mizidian checkpoint in Tongzhou District, Beijing, law enforcement officers in Tongzhou District are working with the staff of Xianghe County Branch of Langfang City Ecological Environment Bureau to carry out joint law enforcement inspections on transit heavy-duty diesel vehicles. At the scene, the staff put the sampler into the diesel exhaust pipe for testing. "This year, joint law enforcement has been carried out six times, and two vehicles with excessive exhaust gas have been found and handed over to the public security traffic police department for handling." Yao Haifeng, deputy director of Xianghe County Branch, introduced.

　　In the first half of the year, the concentration of PM2.5 in Langfang City was 42 μ g/m3, down 2.3% year-on-year; Excellent days reached 112 days, an increase of 2 days year-on-year. The quality of the atmospheric environment continued to improve.

　　Following the action plan for air pollution prevention and control and the three-year action plan for winning the blue sky defense war, the action plan for continuous improvement of air quality has been implemented. Taking PM2.5 control as the main line, we will strengthen source control, multi-pollutant coordinated control and regional pollution coordinated control, promote clean heating in the northern region in an orderly manner according to local conditions, and promote ultra-low emission transformation in the steel, cement and coking industries with high quality. All localities and departments will overcome difficulties and continue to fight the blue sky defense war.

　　In the first half of the year, the average concentration of PM2.5 in 339 prefecture-level and above cities was 33 μ g/m3, down 2.9% year-on-year; The average number of days with good air quality was 82.8%, up 1.4 percentage points year-on-year. Overall, the ambient air quality continued to improve.

　　We continued to fight the battle for clear water, and the overall environmental quality of surface water continued to improve.

　　The blue waves are rippling and sparkling. This is the largest lake in Jiangning District, Nanjing City, Jiangsu Province, with an area of about 233 standard football fields. "I often bring my children here to play. The lake is clear and especially clean." In the evening, Lin Yue, a resident who lives nearby, took a walk with his family.

　　However, more than 10 years ago, due to the direct discharge of domestic sewage, the water quality of this clean and green lake once turned red. "After more than 10 years of treatment, the water quality of the lake has continued to improve. Enter ‘ Fourteenth Five-Year Plan ’ Nanjing continues to fight the battle for clear water, from paying attention to the improvement of water environment to taking into account the improvement of water ecology. " Ju Xiaoqiu, director of the Water Ecological Environment Division of Nanjing Ecological Environment Bureau, said that in order to change the current situation of low transparency and poor biodiversity of lake water, after expert argumentation, new technical means were adopted at the beginning of this year to enhance the resilience of lake ecosystem and enrich biodiversity.

　　The reporter saw that in Baijia Lake, hexagonal flower beds bloomed in the lake like flowers. Careful observation shows that these flower beds are not planted with aquatic plants, but covered with pieces of "fishing nets", and under the net are pieces of cloth. "The surface of the cloth strip is coated with new materials. Under the sunlight, oxygen-active substances are generated to degrade the organic pollutants in the water, improve the transparency of the water body, and create conditions for restoring submerged vegetation." Zhou Yanwen, deputy director of the Institute of Ecology of Nanjing Institute of Ecological Environmental Protection, said.

　　After continuous ecological restoration, the ecological quality of Baijia Lake has been continuously improved: the water quality has reached Class III, the transparency of the water body has been increased from less than 0.4m to 1.9m, the lake has been improved from moderately eutrophic to moderately eutrophic, the species of macroinvertebrates have been increased from 6 to 14, and the coverage of submerged plants has reached over 66%. According to the latest observation data, the ecosystem of Baijia Lake is changing from "algae type" to a more stable "grass type", which means that the plants that are easier to grow in the lake have changed from algae to aquatic plants, which is a sign of good water quality.

　　Since the beginning of this year, Nanjing has continued to fight the battle for clear water, and simultaneously promoted the construction of sewage collection and treatment facilities, agricultural non-point source pollution control, and water ecological investigation and evaluation. In the first half of the year, the proportion of excellent water quality in 42 surface water countries and provinces in the city remained stable at 100%, and Qinhuai River was selected as the second batch of excellent cases of beautiful rivers and lakes by the Ministry of Ecology and Environment. "In the next step, we will continue to implement the water ecological protection and restoration in the Yangtze River basin, build a water ecological assessment index system, and create beautiful rivers and lakes with clear water, shallow fish and harmonious people and water." Ju Xiaoqiu said.

　　It’s not just Baijia Lake. All relevant regions and departments make overall plans for water resources, water environment and water ecological management, further promote the protection and management of major rivers and lakes such as the Yangtze River and the Yellow River, further promote the comprehensive management of key sea areas, strengthen the pollution control and control of rivers entering the sea, and continue to fight the battle for clear water.

　　In the first half of this year, among the surface water assessment sections of 3641 countries, the water quality was excellent (ⅰ & mdash; Class III) The section ratio was 88.8%, up by 1.0 percentage points year on year; The proportion of inferior V section was 0.8%, down 0.2 percentage points year-on-year. The Yangtze River, Yellow River and other major rivers have excellent water quality (Ⅰ— Class III) The section ratio was 90.3%, up 1.2 percentage points year-on-year. The overall environmental quality of surface water has continued to improve.

　　We will continue to lay a solid foundation for the defense of pure land, and effectively guarantee the safe use of polluted cultivated land and key construction land.

　　Walking into the centralized treatment and resource utilization and disposal center of contaminated soil in Guangzhou, Guangdong Province, the staff drove a small bulldozer to work back and forth.

　　"The disposal center has technologies such as solidification stabilization, leaching and thermal desorption." Song Shuxiang, deputy general manager of Guangzhou Huantou Environmental Service Co., Ltd., who is in charge of operating the disposal center, introduced that solidification stabilization technology is used to dispose of heavy metal contaminated soil, leaching technology is used to treat sandy heavy metal contaminated soil, and thermal desorption technology is used to treat organic contaminated soil.

　　With the development of economy and society, a large number of industrial enterprises have moved out of the city, and the original plots have been used for construction land development. However, traditional soil remediation models such as in-situ remediation have some limitations, such as long time-consuming and repeated construction, and the disposal capacity and speed can not keep up with the progress of subsequent development and utilization.

　　The Tenth Five-Year Plan for the Protection of Soil, Groundwater and Rural Ecological Environment clearly proposes to explore the mode of "repairing factories" for contaminated soil. Guangdong province, focusing on Guangzhou and other places, supports the construction of a centralized treatment and resource utilization and disposal center for contaminated soil. Guangzhou has built the disposal center in Baiyun District, which is operated by Guangzhou Huantou Environmental Service Co., Ltd..

　　Ying wang, Director of Soil Environment and Natural Ecological Protection Division of Guangzhou Ecological Environment Bureau, introduced that Guangzhou has promoted soil pollution risk management and restoration in an orderly manner, including soil pollution investigation, risk management and restoration, and established a multi-sector linkage mechanism to ensure the demand for urban rapid development and construction land.

　　The prevention and control of soil pollution should be controlled from the source. In September last year, the Guangzhou Municipal Bureau of Ecology and Environment organized the formulation of "Management Points of Key Supervision Units of Soil Pollution in Guangzhou", and dynamically updated 73 key supervision units of soil pollution in 2024. "We pass ‘ A piece of paper ’ ‘ A table ’ ‘ A picture ’ Clarify who will do, what to do and how to do it in key supervision units and supervision departments at all levels, compact the responsibilities of all parties, guide and urge key supervision units of soil pollution to carry out hidden dangers investigation and other work, and effectively prevent and control the source of soil pollution. " Ying wang said.

　　Adhere to prevention first, risk control, and soil and water co-governance, implement the action of preventing and controlling the source of soil pollution, accelerate the construction of major projects for source control, promote the investigation and rectification of soil pollution sources in cultivated land throughout the county, promote the ecological environment protection of black land and saline-alkali land, and strengthen the control of soil pollution in plots vacated by closed and relocated enterprises … … All relevant regions and departments have highlighted the source control of soil pollution, and classified policies for different pollution sources, which not only prevent the increase, but also reduce the stock, and continue to fight the battle of pure land in depth. The safe use of polluted farmland and key construction land in China has been effectively guaranteed, and the rate of rural domestic sewage treatment (control) has reached more than 45%.

　　Sun Jinlong, Party Secretary of the Ministry of Ecology and Environment, said that it will fully and accurately implement the requirements of precise, scientific and legal pollution control, make precise policies, respect the laws of nature, deepen the reform of the ecological civilization system on the track of the rule of law, continuously improve the modernization level of ecological environmental governance, and plan and promote ecological environmental protection with higher standards.

　　(Reporter Yan Jiangze, Shi Ziqiang, Yao Xueqing, Wang Yunna)