The reporter learned from Huangpu District that in 2021, the proportion of excellent days in Huangpu District ranked among the top three in the city, the year-on-year change rate of pm2.5 and PM10 average concentrations ranked first in the city for two consecutive years, and the air pollution prevention and control work was rated as "excellent" for many consecutive years.
In order to consolidate and improve the quality of the atmospheric environment and help to fight the battle against pollution, Huangpu District has formulated the "14th Five-Year Plan for Ecological Environmental Protection in Huangpu District and Guangzhou Development Zone of Guangzhou City (2021-2025)", which involves a number of key projects such as environmental management capacity building.
Take the lead in building a "one street, one station" air quality monitoring network
Improve the assessment system of streets and towns
At the end of 2021, Huangpu District will build a national standard environmental air automatic monitoring network in 17 streets and towns in the district (excluding the streets and towns where the state-controlled, provincial-controlled and municipal control points are located), becoming the first district in the city to complete "one street and one station". The "one street, one station" data will be used for the air quality assessment of the town and is consistent with the national standard assessment method to ensure scientific and effective, fair and just.
The implementation of street and town assessment has greatly mobilized the enthusiasm of all streets and towns to improve environmental air quality. Some streets and towns with a weak foundation for air pollution prevention and control have invited professional and technical teams to train the basic knowledge of air pollution prevention and control for street and town staff, construction site leaders and enterprise leaders to improve environmental management capabilities. All streets and towns have taken a series of measures to steadily improve regional air quality by strengthening the management of dust at construction sites and cleaning roads, setting up prohibited burning signs and propaganda banners at open burning points and entrances and exits of residential buildings.
Built an atmospheric grid precision monitoring system
Timely control and treatment of pollution sources
As early as 2019, Huangpu District built an atmospheric monitoring grid system, built 254 micro monitoring stations, monitoring content includes conventional six parameters, VOCs and other monitoring parameters, covering the entire area and key pollution source emission points, forming a grid fine distribution point, and using the high spatio-temporal resolution characteristics of the micro station, quickly capture abnormal monitoring data of ambient air quality, real-time early warning, timely discovery, timely notification, timely processing, and timely feedback on the whole process of air pollution problems, forming a closed-loop management.
In the two years since the system was built, Huangpu District has investigated about 500 pollution sources according to the high value of the monitoring data of the micro-station and completed rectification in a timely manner, which has greatly improved the efficiency of law enforcement and disposal.
At about 16:00 on November 16, 2020, the PM10 concentration of a micro-site in a town suddenly soared about twice that of the surrounding stations, and the law enforcement supervisors immediately dispatched drones to inspect and investigate, found that there was open burning in a nearby village, and then notified the relevant departments to go to the processing immediately, and the follow-up data fell back to normal. At about 11:00 on March 30, 2021, the PM10 concentration of a station on a certain street was suddenly about 4 times higher than that of the surrounding stations, and the investigation found that there was a construction site nearby to remove garbage, and the dust was obvious, and the relevant departments immediately notified the town where it was located for disposal.
500 hydrogen fuel cell mud trucks were put into use
Effectively implement energy conservation and emission reduction, pollution reduction and carbon reduction
In June 2020, Huangpu District began to promote the new energy mud truck project, and in January this year, 500 hydrogen mud trucks in Huangpu District were officially put into operation at the engineering construction site. These vehicles can travel more than 400 kilometers after a single charge of hydrogen, and are expected to reduce carbon emissions by 35,000 tons per year when put into use.
According to the relevant person in charge of the new energy mud truck project, the green and low-carbon demonstration operation project of 500 hydrogen fuel cell mud trucks in Huangpu District is the country's leading and largest hydrogen fuel cell mud truck landing demonstration operation project, and it is also the first batch of such large-scale hydrogen energy heavy-duty vehicles put into operation nationwide after Guangdong Province was approved to build a hydrogen fuel cell vehicle demonstration application city cluster in August 2021. Through demonstration operation, the project effectively reduces the emission of air pollutants in Huangpu District, and drives the development of the new energy industry in the whole region through the demonstration role of the pilot, so as to promote the industry with operation and promote development with operation.
This batch of mud trucks is mainly used for use at the construction site of Zhenlong Area in Huangpu District. The Zhenlong area is undergoing rapid development, with an increasing number of construction sites, a surge in the number of diesel mud trucks, and an increase in regional dust emissions and nitrogen dioxide concentrations. After the hydrogen fuel cell mud truck is put into use, it will help improve regional air quality.
Establish a database of VOCs emitting enterprise characteristics
Precise prevention and control of air pollution
Huangpu District has been constantly exploring and deepening the work of air pollution control, introducing new technologies, new technologies and new means to make the blue sky and white clouds and stars flicker forever.
In 2019, Huangpu District began to build a special monitoring network system for odor, particulate matter source analysis and photochemistry, which can monitor the multi-species composition of the atmosphere in Huangpu District in real time and provide decision-making suggestions for the dynamic and accurate control of PM2.5 and ozone pollution.
The special monitoring station for odor early warning located in the Science City Convention Center and the Huangpu Sports Center realizes the online monitoring of up to 136 kinds of odor-related parameters such as VOCs and inorganic parameters. Based on online monitoring, it realizes early warning and traceability analysis of odor-related pollutants, which can provide accurate diagnosis for key areas of complaints. In 2021, air pollution complaint work orders decreased by 22.38% compared with 2020.
In order to effectively curb ozone pollution, the Huangpu District Bureau of Guangzhou Municipal Bureau of Ecology and Environment has formed 159 voCs characteristic research reports through basic information collection, on-site navigation monitoring, offline sampling and testing, total emission accounting, emission characteristic analysis, etc., and generated VOCs component spectrum, total emission list library, species inventory library, ozone generation potential library, and odor characteristic library of 159 VOCs-related enterprises in 11 industries under its jurisdiction, and finally established a voCs emission enterprise characteristic database.
On the basis of the data list, Huangpu District also uses the VOCs navigation monitoring method to carry out refined navigation around the enterprise, and draws a map of the distribution of unorganized emissions of VOCs of enterprises, which can guide enterprises to improve the management level of unorganized emissions.
At the same time, combined with the material balance algorithm, the total amount of VOCs emissions of enterprises can be calculated, and the disposal efficiency of corporate governance facilities can be assessed, which can not only provide scientific basis for guiding enterprises to improve the level of waste gas treatment, but also provide data support for the next step of ozone pollution prevention and control policies.
These "combined fists" have effectively improved the ability of Huangpu District to accurately prevent and control air pollution.
Introduction of professional technical team
Help win the blue sky defense war
In order to win the blue sky defense war, the Huangpu District Bureau of the Guangzhou Municipal Bureau of Ecology and Environment introduced a professional and technical consulting team to take the pulse of the air problems in Huangpu District.
After the team moved in, in view of the Huangpu District air quality one of the key crux of PM10 put forward control suggestions, Guangzhou Municipal Bureau of Ecology and Environment Huangpu District Bureau immediately combined with the analysis of key issues and key measures, plans, quickly adopted a pm10 control action plan, from the source of the root of the root, inspection found that the problem immediately urged the responsible unit to rectify, the unit or town that did not complete the rectification within the specified time to notify. The professional team also assisted the Huangpu District Bureau of guangzhou municipal bureau of ecology and environment to carry out special activities for the transformation of old villages, put forward targeted control suggestions, and compiled the "Guidelines for Standardized Operation of Dust Prevention and Control in Old Village Transformation Projects". In 2021, a total of about 100 dust problems at demolition sites will be investigated, and the problems will be solved and compacted to relevant departments to ensure that urban development and environmental protection work together.
The professional team also prepared a "one point one policy" plan for 6 national, provincial and municipal control points in Huangpu District, and strictly grasped the pollution problem in key areas. First of all, the special investigation of 20 ports and terminals in Huangpu District to find out the current situation; subsequently, to assist the Huangpu District Bureau of guangzhou municipal ecological and environmental bureau to carry out special inspections of the roads around Dashadi, Zhenlong State Control Point and Wenchong City Control Point, the Huangpu District Bureau of Guangzhou Municipal Bureau of Ecology and Environment will inform the inspection results in the whole district, compact the problem to the relevant departments and require rectification on schedule, and reduce the production of NO2 and particulate matter from the source.
【Reporter】 Wu Yulun
【Correspondent】 Li Baohua Luo Jiangliang
【Author】 Wu Yulun
【Source】 Southern Press Media Group South + client
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