Dongguan's good ecological environment attracts many migratory birds every year. Courtesy of Marina Bay.
The proportion of days with good air quality in the city reached 888%, ranking first in the province in terms of improvement; There is no heavily polluted weather throughout the year; The water quality compliance rate of 4 municipal centralized drinking water sources is 100%; 9 national and provincial examination sections or above the proportion of excellent water quality reached 778%;The safe use of key construction land in the city has been effectively guaranteed ......
Behind the dazzling data, it is the determination of the Dongguan Municipal Bureau of Ecology and Environment to promote the gradual transfer of environmental pollution control to normalized operation and maintenance control, and continue to fight the battle of pollution prevention and control, and also witness the strong momentum of Dongguan's high-level ecological environmental protection to promote the city's high-quality economic and social development, and draw a beautiful picture of the interdependence and mutual promotion of industrial civilization and ecological civilization.
Written by: Ho Yee Ying.
Curator: Dai Shuangcheng.
Co-ordinator: Zhang Qianqian.
Sky blue "temperament" is outstanding, and a total of "blue" pictures are drawn.
Over the years, there have been more and more blue skies in Dongguan, and the air has been getting better and better. Master Liu, a citizen who has been driving a taxi in Dongguan for 10 years, sighed. "The black smoke cars are gone, there are more and more cars with green license plates, and there are not many chimneys. ”
The environment is the people's livelihood, the green mountains are beautiful, and the blue sky is happiness. "Dongguan Blue" swipes the screen, goes out to see the green, pushes the window to see the scenery, embraces nature, enjoys "forest breathing", and can encounter "poetry and distance" at the door of the house, which is the personal feeling of Dongguan neighborhoods in the past year.
Data shows that in 2023, the proportion of days with good air quality in Dongguan will reach 888%, an improvement of 8 year-on-year8 percentage points, ranking first in the province in terms of improvement; Among the six air pollutants, ozone (O3), nitrogen dioxide (NO2), and carbon monoxide (CO) improved by % year-on-year, PM2, respectively5. Sulfur dioxide (SO2) was flat year-on-year, of which PM25 The concentration is 21 micrograms of cubic meters, ranking joint 10th in the province, and it has reached the second phase of the WHO target for many years. Dongguan's air pollution sources involve many industries, large numbers and scattered distribution, and the management difficulty and pressure are very great. Behind the continuous improvement of "temperament" is inseparable from the "combination punch" played by the Dongguan Ecological Environment Bureau and relevant departments, which has grasped the "bull's nose" of air pollution prevention and control.
On the one hand, Dongguan has implemented the governance of key areas such as industrial sources, mobile sources, and non-point sources, and has completed the upgrading and transformation of 1,054 gas boilers in the past year, and promoted the implementation of special emission limits for air pollutants for gas boilers in our city; On the other hand, Dongguan has accelerated the construction of a green transportation system, vigorously promoted the use of new energy vehicles, added 14,430 new energy taxis, sanitation vehicles, official vehicles and passenger vehicles, and eliminated 12,833 national III diesel vehicles.
In order to draw a "blue" picture of happiness, Dongguan has also implemented more refined control measures for VOCs, implemented a BAC grading evaluation system and differentiated control for VOCs-related enterprises, and implemented emergency weather exemptions for A-level enterprises, so as to greatly improve the accuracy of environmental governance.
At the same time, taking the opportunity of "digital first" reform and construction, the Dongguan Municipal Ecological Environment Bureau has built a "1+2+3+4+N" (i.e., a central command and dispatch, two-layer data collection and fusion, three major applications of precise prevention and control, four-level linkage and collaborative supervision, and N scene management services) ecological environment big data supervision system to promote the realization of first-class collaborative and intelligent supervision. Dongguan will also apply drone aerial photography and other technologies in the field of ecological environment, real-time rapid tracking of environmental emergencies, capture illegal pollution sources and timely evidence collection, observe the distribution of pollution sources, emission status and project construction, and provide "clairvoyance" for ecological and environmental supervision, greatly improving the scope of environmental protection monitoring and the efficiency of environmental law enforcement.
Recently, the Daojiao Ecological Environment Branch cooperated with a third-party professional company to carry out drone smart inspections in the jurisdiction, found out that the VOCs emissions of a certain decoration and a packaging product were abnormally high, and explained the actual problems to the enterprise and put forward rectification measures.
By giving full play to the role of scientific and technological means such as drones and pipeline navigation, and exploring the inspection and supervision mode of 'seeing from the sky, checking on the ground, and walking underground', we will continue to improve the precision, intelligence and efficiency of environmental supervision and law enforcement. The relevant person in charge of the Daojiao Ecological Environment Branch said.
With multiple measures, Dongguan's air quality will improve significantly in 2023, and the number of lightly polluted days will decrease by 32 days year-on-year.
Water and green, a new economy grows out of the good scenery.
The temperament is outstanding, and the "water quality" is not bad.
In the past year, the quality of Dongguan's water environment has continued to improve: the water quality compliance rate of four municipal-level centralized drinking water sources in the south tributary of the Dongjiang River, Zhongtang Waterway, Taiyuan Pumping Station and Yantian Reservoir has reached 100%; Nine national and provincial surface water sections have achieved full compliance with the standard, and the proportion of excellent water quality (water type and above) has reached 778%;34 of the 36 first-class tributaries in key state-controlled sections have achieved annual deterioration; 53 rural black and odorous water bodies are basically black and odorous; The annual average concentration of inorganic nitrogen at the state-controlled sites in the two coastal waters also reached the provincial assessment target for the first time.
In the coastal waters, the management of Dongguan's coastal waters is facing severe challenges due to the large total nitrogen input from land-based sources, the high total nitrogen concentration of major rivers in the city, and the increase of total nitrogen concentration in cross-border rivers.
Total nitrogen is the sum of nitrogen-containing substances in the water environment, including inorganic nitrogen and organic nitrogen, which is mainly used in domestic sewage, urban non-point source pollution, industrial wastewater from food, papermaking, printing and dyeing industries, agricultural pollution, etc. The main element of marine inorganic nitrogen is the total nitrogen input in the terrestrial area, and all nitrogen-containing substances in the aquatic environment can be converted and recycled to each other.
The Humen Sluice, which is about 5-10 kilometers away from the national examination site in the coastal waters, is the main sewage channel in Dongguan and the estuary of the East Diversion Canal. The East Diversion Canal flows through 20 towns and streets (parks), and after undertaking the sewage from the Shima River Basin and the Hanxi River Basin, it finally enters the sea through the Humen Sluice, and at the same time, the East Diversion Canal also drains water to the south tributary of the Dongjiang River through the sluice along the line, and finally flows into the Shiziyang.
The first time that the target was reached, it means that the comprehensive management of Dongguan's coastal waters has achieved phased results. The relevant person in charge of the Municipal Bureau of Ecology and Environment said that the next step will be to strengthen the overall planning and comprehensive management of land and sea, promote the steady improvement of the marine ecological environment, and ensure that the water quality of coastal waters is stable and improving.
And in Huayang Lake, Machong, Dongguan, the rippling blue waves of the lakeside egrets flying, dotted with flowers, fish flying shallow bottom, the scenery is charming, the tourists are weaving, and the cockroaches that have not been seen for a long time have "emerged" again.
Last year, Huayang Lake was selected as the second batch of excellent cases of beautiful rivers and lakes announced by the Ministry of Ecology and Environment, and its experience in comprehensive improvement of the ecological environment has become a demonstration of river basin governance for all localities to learn from.
It is reported that Huayang Lake adopts the "Dongguan model" of "ecological restoration priority + elimination of backward industries + green transformation of industrial structure + ecological civilization co-construction, co-governance and sharing", realizes high-level protection with the systematic management of "three waters", promotes high-quality development and creates a high-quality life with high-level protection of the ecological environment, and explores and forms a beautiful river and lake protection and construction mechanism with ecological protection priority and coordinated development of green economy.
Relevant data show that Huayang Lake has promoted emission reduction and pollution reduction from the source to improve the water environment, cleared 109 polluting enterprises, and cleaned up and disposed of 223 farmers; 465 kilometers of new sewage pipe network has been built, 4 sewage treatment facilities have been built, the construction of rain and sewage diversion in the whole area has been promoted, and more than 20 private sewage outlets into the river have been remediated, and domestic sewage has been effectively treated.
At the same time, Huayang Lake has carried out dredging and dredging of key tributaries, connecting more than 3,000 acres of water systems around it, revitalizing the water network of the whole area and ensuring water resources. Huayang Lake has also built 8 new pump gates to ensure the stability of the ecological water level; More than 1,000 acres of river beach habitat have been transformed, and the water ecology and natural coastline of the whole region have been restored, so as to truly "return the lake to nature".
Environmental governance promotes the upgrading of traditional industries, and when the environment is better, enterprises are also coming. The surrounding area of Huayang Lake has successively introduced e-commerce projects such as Jingdong to realize the first-class exhibition of the logistics industry; At the same time, it will force grain and oil enterprises to transform and upgrade, build a national scientific research center, and transform from a high-energy consumption production base to a first-class R&D center. In the good scenery, a new economy grows, and the high appearance becomes the ...... valueThe steaming development practice highlights the connotation of green development.
The soil is clean and the saline-alkali land has become an Internet celebrity check-in point.
Shijie Sandalwood Island, Yanling Wetland Park, Marina Bay Dongbao Park ......These "scenic spots" that are familiar to the public are the "warriors" of the battle to defend the pure land of Dongguan Qingshan, and have made outstanding contributions to the phased results of Dongguan's pollution control.
Take Marina Bay Dongbao Park as an example, this coastal park on the Pearl River and on the banks of the Lingding Ocean attracts many migratory birds every year.
In recent years, Dongguan has coordinated the implementation of ecological protection and restoration projects in the Marina Bay New Area, focusing on solving the ecological difficulties caused by the salinity of tidal flats and industrial agglomeration in the coastal zone.
From a saline-alkali tidal flat to the city's first ecological wetland park close to the coastal scenery, the Dongbao Park project is planned and designed according to the concept of "unbounded function, unbounded sea and land, unbounded vision, and unbounded culture", with a total investment of 17.5 billion yuan to create a comfortable ecological coastal activity space, to meet the needs of ecological conservation, display the image of the wetland, and ensure that residents are close to the sea and exercise space.
By building ecological seawalls, saline-alkali land management, soil improvement, and reclamation structural foundations, Dongbao Park has built 6,000 square meters of coastal wetlands and restored 450 meters of coastline, which was awarded the "Top Ten Examples" of the second land and space ecological restoration in Guangdong Province.
Today, the coast of the Kau Yi Bay section is beginning to take shape. Watch the sea and listen to the waves, take a walk and relax, and indulge in the ** will ......Every holiday, the coast is full of tourists, and the sunset and migratory birds fly together, becoming a place for citizens to watch the sea and check in.
The transformation of the saline-alkali butterfly into a coastal park is just one of the epitomes of Dongguan's battle to defend the pure land.
In the past year, the Dongguan Municipal Bureau of Ecology and Environment issued and implemented the "Dongguan 2023 Work Plan for the Prevention and Control of Soil and Groundwater Pollution", continued to strengthen the prevention and control of soil pollution sources and the linkage supervision of the soil environment of construction land, urged 28 key supervision units to complete soil and groundwater self-monitoring, strengthened the key monitoring and risk control of 17 priority supervision plots in the city, and completed the filing of soil pollution status reports on 93 construction land, so that the safe use of key construction land in the city has been effectively guaranteed.
At the same time, the Dongguan Municipal Bureau of Ecology and Environment issued and implemented the "Dongguan Groundwater Environmental Quality Assessment Point Water Quality Standard or Maintenance Plan", compiled the "Dongguan Groundwater Pollution Prevention and Control Key Area Delineation Plan", and promoted the investigation of the groundwater environmental status of 31 key pollution sources in the city to ensure that the water quality of Dongguan groundwater environmental quality assessment points is stable and up to standard.
In 2020, Dongguan's environmental governance work was rewarded with first-class supervision and incentives; In October 2021, Dongguan's achievements in ecological civilization construction were reaffirmed and awarded the title of National Ecological Civilization Construction Demonstration Zone; In April 2022, Dongguan was selected into the national list of "zero-waste cities".
More than 600 rivers in the city reproduce the "beauty of clear water and shore", tens of millions of people live and work in peace and contentment, and a picture of the green beauty of Dongguan with blue sky, green water and clean soil is slowly unfolding here.