A waste gas treatment tower was installed on the roof of the production workshop of Panyu Yuanmai Jewelry Co., Ltd., located in Daluotang Jewelry Zone, Panyu.
Keep the original heart, take the mission, find the gap and implement it
Carry out in-depth education on the theme of "Do not forget your initiative mind, Remember Mission"
There are more than 2,400 construction sites in Guangzhou, and dust from construction sites is one of the important causes of atmospheric particulate pollution, and it may be difficult to control dust pollution repeatedly. How to supervise it effectively for a long time is a difficult problem. At the same time, the general survey of pollution sources in Guangzhou has entered the stage of data summary and audit, which involves a wide range and a large amount of data. How to ensure the accuracy of the data is very important.
Therefore, in combination with the theme education of "Do not forget your initiative mind, keep in mind the mission", the Guangzhou Municipal Bureau of Ecology and Environment runs through the whole process of the theme education, implementing source control, standardizing the management of construction sites, implementing the pollution source survey, finding out what the problem is and where the crux lies, sticking to the word "reform" throughout, persisting in the establishment of reform, and resolutely fighting the tough battles of pollution prevention and pollution source survey.
Text/Guangzhou Daily All-Media Reporter Wang Chuhan and Du Juan
Correspondent sui huanxuan
Figure/Guangzhou Daily All-Media Reporter Zhuang Xiaolong
Li hang Li Gai
Inspection and supervision: set up full-time environmental protection personnel to supervise the construction site.
The second phase of hengli town Resettlement Area in Nansha District is under intense construction. But different from people’s impression of dusty and disorderly, the construction site here is orderly: all the undeveloped land is covered with green dust-proof nets, and some land is afforested; Sprinklers are sprinkling water to reduce dust, and a 360-degree rotating spray head can be seen every 2.5 meters on the fence; The PM2.5 displayed on the screen of the 24-hour on-line dust detection system is about 25 μ g/m3. "Sprinklers will spray water regularly every two hours. spray head is basically open from 8 am to 6 pm, and fog cannons will also spray dust. In addition, the construction site is also equipped with 12 cleaning workers to clean the construction site and import and export roads. " The relevant person in charge of the project introduced.
In addition to consciously equipping the construction site with dust suppression facilities and implementing dust suppression measures, Jiezhen also has full-time environmentalists who use Guangzhou Dust APP to supervise the construction site. Liu Chunke, a full-time environmental protection worker in hengli town, told reporters that the dust on the construction site is inspected every week, including whether the engineering information is perfect, whether the transport vehicle is cleaned and whether the residual mud is covered. During the inspection, it is found that the land is not covered with green nets, the land that has not been constructed for a long time is not afforested, the construction road is not hard-bottomed, and the vehicles are not cleaned.
"In the process of routine inspection of the second phase project of hengli town resettlement area, it was found that there were problems of road dust emission and some exposed residual mud not covered." Liu Chunke said that he would take photos immediately after discovering the dust problem, and enter the problem into the Guangzhou Dust Supervision APP, and feed it back to the Nansha District Quality Supervision Station, the supervision unit of the construction site, and at the same time issue the Notice Letter on the Prevention and Control of Dust Pollution on the Construction Site to urge the construction unit to carry out rectification. After receiving the rectification notice, the construction unit immediately carried out rectification measures, arranged sprinklers to spray water immediately, and covered the exposed residual mud. "Now the awareness of dust pollution prevention and control in construction sites has also increased. Last year, the green net covering the land was in short supply, and the price has increased!"
On-line monitoring: the air quality was optimized obviously from January to July.
Dust is the main source of PM10 and PM2.5 in Guangzhou. In recent years, Guangzhou has vigorously promoted dust pollution control in construction sites, refined the "six hundred percent" requirements for dust pollution control, produced an atlas of guidance for green construction enclosure of construction projects, held on-site meetings, organized publicity training, promoted the installation of dust online monitoring equipment, strengthened law enforcement inspection, and increased notification and punishment. In view of the problem that dust pollution control in construction sites is easy to repeat and difficult to adhere to, since 2019, the regulatory authorities such as housing and construction have stepped up supervision, inspecting about 100 construction sites every day, urging the implementation of the "six hundred percent" requirements for dust pollution control, and at the same time using drones. Conduct inspections. Up to now, a total of 1080 online dust monitoring devices have been installed and networked.
In addition, in 2018, the municipal ecological and environmental department developed and launched the Dust Supervision APP, organized town and street environmental protection personnel to inspect the construction site, and reported the problems to the regulatory authorities in real time for follow-up. The users of the APP include the Municipal Housing and Urban-Rural Development Bureau, the Transportation Bureau, the Water Affairs Bureau, the Urban Management Comprehensive Law Enforcement Bureau, the Ecological Environment Bureau, the Forestry and Landscape Bureau, the Planning and Natural Resources Bureau, the Guangzhou Port Authority and the quality and safety supervision stations of various construction projects.
More than 2,400 construction sites in the city, regardless of the size, are all included in the Dust Supervision APP, which can be used to view and count the basic situation of construction projects. The supervision and inspection personnel of the ecological and environmental departments input the inspection and spot check information of the construction sites, and feed back the inspection and spot check information to the supervision units such as housing construction, water supply and transportation, and then the supervision units organize rectification and fill in the handling information, so as to implement the requirements of "establishing banks and reforming them" and form a multi-sectoral supervision mechanism for dust in Guangzhou. Since the beginning of this year, the city’s law enforcement officers have inspected 28,987 construction sites and 2,389 construction sites, and found that 1,304 "six hundred percent" problems have not been implemented, and all the problems found have been followed up and rectified.
The control effect of dust is also intuitively reflected in the air. From January to July 2019, the comprehensive index of ambient air in Guangzhou decreased by 13.4% year-on-year, and the air quality improved; The air quality reached the standard for 193 days, an increase of 25 days. Among them, the average concentration of PM2.5 was 28 μ g/m3, down 22.2% year-on-year; The average concentration of PM10 was 47 μ g/m3, down 14.5% year-on-year.
General survey of pollution sources: If you have any questions about filling in the form, you can ask the census taker.
The once-in-a-decade national pollution source survey has now entered the stage of data summary and audit, which is a major national survey, involving a wide range and a large amount of data. How to ensure the accuracy of the data is very important.
Guangzhou Panyu Yuanmai Jewelry Co., Ltd., located in Daluotang Jewelry Zone, Panyu, is a leading jewelry processing enterprise in Panyu District, mainly engaged in the processing of gold and silver jewelry and jewelry inlays. The relevant person in charge of the enterprise took out a checklist of dozens of pages and told the reporter: "Because there are differences in production technology and pollution control links, it is really unclear which links need to be filled in when filling out the form, how to fill them out, and some problems involving data unit conversion are also complicated. Fortunately, there are census takers and census instructors to help us fill out the form. "
According to the relevant person in charge of the Municipal Bureau of Ecology and Environment, the general survey of pollution sources is not as simple as expected. Sometimes a company has to visit several times. "For example, it is found that the company is closed at the scene, but it is uncertain whether the company is temporarily closed or seasonally closed. It takes a few more walks to be sure. " In addition, the general survey of pollution sources involves not only communication, but also technical problems in the form filling. Take shoemaking as an example, one of the two processes needs to be selected, that is, drawing wires and gluing. When filling in the form, some enterprises may mistake the gluing in the drawing wire process for the gluing process, resulting in wrong selection or multiple selection. Because the emission of pollutants is estimated by coefficient method, different processes correspond to different coefficients. If the previous process is not filled in correctly, the results estimated by coefficient method will be quite different. "In view of these situations, not only enumerators guide enterprises to fill in the forms, but also census instructors will further review the data. In addition, we will compare the data with the existing data to ensure the accuracy of the final data."
Pollution data: a map of pollution sources in the city will be drawn.
The national pollution source survey is a major national survey conducted by the State Council in accordance with the Regulations on the National Pollution Source Survey, which is conducted once every ten years. From 2007 to 2010, the first national pollution source survey was carried out, and this is the second national pollution source survey. The census time is arranged from 2017 to 2019, which is mainly divided into four stages: preliminary preparation, inventory building, household survey and summary release.
The relevant person in charge of the Municipal Bureau of Ecology and Environment said that in 2017, Guangzhou started the preparatory work for the general survey of pollution sources, and successfully completed the household survey task in 2018. At present, it has entered the stage of data summary review. After completing the data filling and entry system, Guangzhou was organized to carry out data auditing, on-site verification and data summary auditing in the household survey stage, and seriously carried out rectification and implementation according to the list of questions fed back by the national and provincial census offices.
In the stage of household survey, Guangzhou organized and carried out the work of reporting and auditing by enterprises, on-site auditing by census takers, on-site rechecking by census instructors, and conducted two rounds of data auditing for key information census forms, feedback from experts and auditing of census systems, to check input data and recheck spatial information.
Since January this year, two rounds of quality verification have been carried out, and industrial sources, large-scale livestock and poultry farms, centralized pollution control facilities, sewage outlets into rivers (seas), non-industrial source boilers, mobile sources, administrative villages and parks in 44 towns in 11 districts have been selected for on-site verification, and one census community in each district has been selected for pull-net verification.
After the census and accounting work, Guangzhou immediately transferred to the data summary and audit work. In June, the Municipal Census Office issued the Operational Guidelines for the Data Auditing of the Second National Pollution Source Census in Guangzhou, sent technical teams to all districts to guide the data summarization and auditing, and organized four rounds of data summarization and auditing successively.
From July to August, Guangzhou received a total of 16 issues of the list of suspected problems summarized and reviewed by the national and provincial census offices. The municipal census office immediately organized all districts to carry out verification work, seriously rectified the problem data, completed the systematic problem verification and rectification on time, and made notes on the verified problems one by one. In the next step, Guangzhou will continue to organize data summary and audit according to the requirements of the national and provincial census offices, so as to further improve the quality of census data and ensure compliance with relevant national requirements.
"The national pollution source survey is a major national survey once every ten years, and it is the basic work of environmental protection. It is of great significance for accurately judging the current environmental situation, formulating and implementing targeted policies and plans for economic and social development and environmental protection, and improving environmental quality." According to the relevant person in charge of the Municipal Bureau of Ecology and Environment, in the era of big data, the data of pollution source census is also used to make pollution source maps, and relevant management systems are developed, so as to accurately monitor the pollution sources in the city. "The map can show the distribution and types of enterprises in 11 districts of the city, and a management system is developed through the data of pollution source census, so as to accurately monitor the pollution sources in the city."
Guangzhou strengthens dust control supervision
Innovative supervision means
More than 2,400 construction sites in the city, regardless of the size, are all included in the dust supervision APP, which can be used to view and count the basic situation of construction projects;
Up to now, a total of 1080 online dust monitoring devices have been installed and networked in the city.
Carry out inspection and law enforcement
Since the beginning of this year, the city’s law enforcement officers have inspected 28,987 construction sites and 2,389 construction sites, and found that 1,304 "six hundred percent" problems have not been implemented, and all the problems found have been followed up and rectified.
Optimize air quality
From January to July 2019, the comprehensive index of ambient air in Guangzhou decreased by 13.4% year-on-year, and the air quality improved; The air quality reached the standard for 193 days, an increase of 25 days.
PM2.5 decreased by 22.2%
mean concentration
28 μ g/m3
PM10 decreased by 14.5%
mean concentration
47 μ g/m3
Grass-roots sound
Wu Shuchao, a villager from Nansha hengli town
There is less dust at home, so I can sleep well at night.
My home is opposite the construction site. In the past, the dust generated by the construction site, as well as the noise of vehicles entering and leaving, piling and so on, will have some impact on daily life. But now the construction site will sprinkle water regularly, and basically no dust will be felt at home, and the construction site will stop working at 9: 30 every night, so it is more stable to sleep at night.
Yuan Jianhui, a construction worker of Nansha hengli town Resettlement Area Phase II Project.
The workers all feel that the working environment is better.
Construction workers’ daily work, eating and rest are all on the construction site. Now there are not only sprinklers, spray head, fog guns and other dust suppression equipment on the construction site, but also cleaners to clean and control the dust well. The construction workers here feel that the working environment has improved, and the sprinkler operation can also play a certain role in cooling down!
Lin Weishen, Polluter of Pollution Sources in Panyu District
Only when the data is accurate can we do a good job of governance.
The accuracy of the basic data of pollution source census is very important, and about 500 enterprises have been visited since they entered the household last year. In the filling of the census form, a data unit and a decimal point need to be treated strictly. Only by ensuring the accuracy of the data can we truly reflect the production and discharge of pollution sources in enterprises, so as to supervise and control pollution in enterprises more pertinently.
It is even more essential to have a sense of responsibility and innovative thinking
In recent years, the air quality in Guangzhou is getting better and better. In the circle of friends, "Guangzhou Blue" often dominates the screen; In the streets and lanes, wherever you go, you bring your own "blue sky and white clouds" background. For two consecutive years, the concentration of PM2.5 has reached the standard, and such an eye-catching achievement cannot be separated from the strong promotion of dust control.
Construction site dust is one of the important causes of atmospheric particulate pollution, and there are problems that are easy to repeat and difficult to persist. For Guangzhou, the tight construction period and large number of projects under construction also make it more difficult to control dust pollution. However, there are always more ways than difficulties, and the key depends on whether the understanding is in place and whether the action is firm. This means that on the one hand, it is necessary to raise awareness, further enhance supervision consciousness, put the control of dust pollution in a prominent position, and achieve results. On the other hand, we should also innovate methods, make full use of new technologies and means, optimize processes and improve efficiency. For example, launch the dust supervision APP, organize town and street environmentalists to inspect the construction site, and report problems to the regulatory authorities in real time for follow-up; Promote the installation of dust online monitoring equipment and strengthen law enforcement inspection; Using drones to carry out inspections and improve supervision efficiency & HELIP; …
Driven by a series of measures, the effect of dust supervision is "immediate". From January to July this year, Guangzhou’s air quality reached the standard for 193 days, an increase of 25 days year-on-year, and the concentration of atmospheric particulate matter related to dust showed a downward trend. The feelings of citizens are also intuitive. Many people say that the dust generated by the previous construction site, as well as the noise of vehicles entering and leaving, piling and so on, are annoying. At present, the construction site will be watered regularly, and the work will be finished on time when it arrives. The faster the building is built, the less and less impact it will have on life. It is understood that under the supervision of the regulatory authorities, many construction sites are equipped with sprinklers, spray head, fog guns and other dust suppression equipment. For managing dust pollution, everyone’s initiative and consciousness are constantly improving.
In the final analysis, it is necessary to turn knowledge into action and goals into reality. It can be seen from the dust control that how to do a good job and achieve results requires a sense of responsibility and innovative thinking.
(Guangzhou Daily commentator Mao Yuming)
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