"I really didn't expect that now Tongzhou can also take pictures of star track !" Photography enthusiast Du Zhiguang excitedly showed the reporter a proud work - under the night sky, the star track is gorgeous and colorful, adding a bit of mystery to the quaint " Three Temples and One Tower ".
"This shows that the quality of the ecological environment around us is getting better and better." Not only Du Zhiguang, but since this year, many photography enthusiasts have taken star tracks in Zhangjiawan Ancient Bridge in Tongzhou District, Grand Canal Forest Park and other places. Data shows that from January to July this year, the concentration of PM2.5 in Tongzhou fell by 20% year-on-year.
Young man running on the Grand Canal . Photo by Du Zhiguang
Three temples and one tower complement each other with the star orbit. Photo by Du Zhiguang
Starry sky has become an excellent footnote for air improvement
Du Zhiguang, 56 years old this year, is from Shanxi and has been living in Tongzhou for more than 30 years. This city built on the Grand Canal has also become its "second hometown".
When I first arrived in Tongzhou, what impressed Du Zhiguang the most were the annoying sandstorm that was every spring, and the smell of coal smoke in the air in winter. "The air is poor and the transparency is very low. In a year, I can't even find a suitable star track for a day." Du Zhiguang said that in order to photograph satisfactory starry sky, he often goes to the deep mountains of Huairou and Miyun . "But I always feel that the canals, ancient towers and ancient bridges in Tongzhou have not touched me. It would be great if I could photograph the star track at my doorstep."
In the past decade, Du Zhiguang felt that the environment in Tongzhou is getting better and better. The Grand Canal reappears, like a jade belt falling; birds singing and flowers scenting around the residents, and green is seen by pushing the window... Even the former "polluter" Oriental Chemical Factory was shut down and closed until it was demolished and transformed into Urban Green Heart Forest Park .
This photo of the three temples and one tower scenic spot and the star track has become popular in the "photo circle" of Tongzhou. Some photographers even questioned, "Can it be a synthetic photo?" Du Zhiguang said with a smile: "Everyone will definitely be surprised, because taking a star track is a rare thing. The whole time of taking a photo is 2 hours, the camera must be aimed at the sky. Even if a sudden stream of sand comes, or the sky is not transparent, the photos will not be so perfect."
"Zero Action" cracks down on dust pollution
In the middle of the night, the law enforcement inspection team arrived at the gate of the construction site. The person in charge of the construction site "cucked temporarily" and shouted to the workers to stop work, but the naked ground that had not been covered and the weld smoke that had not yet dissipated still exposed... A "Zero Action" in July this year made Tian Lei, a staff member of the Atmospheric Environment Department of Tongzhou District Ecological Environment Bureau, still remembered it fresh.
The construction of the urban sub-center is in full swing, with a total of hundreds of construction sites of all sizes. Tian Lei said that the "Zero Action" was carried out once a week, led by the leader, without sending notices, saying hello, not listening to reports, and not having to accompany him to receive him. Every time, he went straight to the grassroots and went straight to the scene. Even the staff of Tongzhou District Ecological Environment Bureau did not know which project to be inspected tonight, which ensures the reliability and authenticity of the inspection.
In addition to the Tongzhou District Ecological Environment Bureau, local streets and townships, as well as functional departments such as housing and construction, urban management, transportation, and gardens have also joined in, making every effort to reduce the pollution of dust on the atmospheric environment from multiple dimensions, increase the exposure of illegal issues, keep a close eye on problems, strictly control them, and achieve zero tolerance for environmental violations. From January to August 2022, the "Zero Action" investigated and punished 421 illegal transport vehicles, and filed 485 cases of punishment for environmental issues.
In addition, since December last year, the use of high-emission non-road mobile machinery in the entire area of Tongzhou District has been prohibited. "The bulldozers, excavators, and forklifts that are emitting black smoke and are seriously polluted can no longer work in Tongzhou." Tian Lei said that even non-road mobile machinery that meets the conditions must be registered with the district ecological environment bureau in advance, and a QR code including car owner information, annual inspection time and other elements can be generated before "holding the code to work." Law enforcement officers can obtain relevant information by scanning, greatly improving supervision efficiency.
technology and technology are refined and weaving a dense "prevention and control network"
A large camera can see the naked ground in the air, and you can see the entire Tongzhou District naked area.Remote sensing technology, which sounds like a science fiction blockbuster, has now become a reality in the urban sub-center.
Why should we regulate naked land? Naked land is a plot without plant growth, which may be a construction site without tarts, or a land formed by artificial disturbance. It has long been one of the main sources of coarse particulate matter such as dust.
"Remote sensing technology, simply put, is just like taking photos." Liang Jiju, a staff member of the Atmospheric Environment Department of Tongzhou District Ecological Environment Bureau, said that in the past, artificial supervision was restricted by various factors, such as being too remote or the construction site was blocked, and it was impossible to reach or enter the site. In contrast, remote sensing is not limited by time and location, and does not require a lot of manpower to assist. It covers a wide range of areas and is faster and more convenient to monitor.
With remote sensing technology, Tongzhou District can promptly inform streets and townships that have found many suspected problems in naked land, and accurately find out the "lesions" through "assistance" and urge the local area to rectify naked land. "Some areas can't wait to ask for data every time the remote sensing results come out." Liang Jiju said that the satellite remote sensing monitors naked ground, reflecting the level of urban refined management.
Not only that, Tongzhou District has also built an atmospheric refined management platform, which has more than 600 "sky eyes" distributed on construction sites, communities, and roadsides across the district, and can transmit monitoring data back to the district ecological environment bureau in real time. Through big data analysis, when the data at a certain point is significantly higher than the monitoring data of other probes around, the system will automatically push alarm information to remind relevant communities and village staff to inspect the surrounding area and improve the level of refined regional management.
(Original title: From January to July, the concentration of PM2.5 in Tongzhou dropped by 20% year-on-year. "I took a star track in the three temples and one tower")
Source: Beijing Daily Reporter Chen Qiang
Process Editor: u099
