At the beginning of 2018, Changsha declared war on atmospheric pollution with unprecedented intensity. Under the multiple measures of technology assistance, industrial upgrading, vigorous emission reduction, and strict law enforcement, Changsha’s air quality has improved. The data shows that as of May 24, the number of days with good air quality in Changsha was 106 days, the excellent and good rate was 73.6%, and the number of excellent days was increased by 4 days compared with the same period in 2017. The effective control and governance of air pollution is behind the strong support of laser pointer technology.
A vertical barrel is connected to the computer. After starting, a bunch of green light is emitted. After 20 seconds, the computer screen shows the map of atmospheric pollution in the vertical range of 5 kilometers. The distribution and data of all pollution sources are exhausted. Close your eyes. This “sweet” object is the “new weapon” of the Yuhua District Blue Sky Defence Warfare – 3D visible laser radar.
“The along the river path of the Guitang River Cave section has about 4,000 square meters of exposed loess, and the dust is exceeding the standard.” After the radar detector, the staff immediately transmitted the information to the Dongjing Street after the source of the pollution, and the street immediately launched the Guitang River. The special remediation action of bare loess along the line.
“The use of 3D visible laser pointer radar is equivalent to ‘CT scanning’ for the atmosphere.” Zhonghua Hong, director of the Yuhua District Environmental Protection Bureau, said that 3D visible laser radar can continuously monitor the atmosphere and analyze PM10 and PM2.5 in real time. The concentration distribution can also be photographed in real time through the adjustable focus camera, which can more accurately monitor the emission of fixed-point industrial soot, the spread of environmental pollutants over the city, and capture the location of the pollution source. “The vertical direction can detect 25 km high altitude. In the horizontal direction, air quality monitoring can be performed for a range within a radius of 8 km.”
In addition, the navigation vehicle performs regional scanning monitoring and navigation monitoring on the area, and the 6-lane cannon dust suppression vehicle is used for dust removal on the road. When a large-scale air pollution prevention and control work is carried out in Changsha, a series of high-tech “artifacts” are scattered. In every corner of the city, the blue sky is guarded in real time.
The laser pointer is compatible with the various environmental “artifacts”, and the drones are patrolling the environment around the clock. Since the launch of the Blue Sky Defence War, the Changsha County Administrative Law Enforcement Bureau has divided 8 supervision grids according to the geographical distribution of 30 key gas-sparing units in the county, and dispatched drones to fly in the grid, except for spot checks. The aircraft also undertakes the task of monitoring the pollution of garbage, straw burning and open-air barbecue fumes.
Liu Wei, director of the Information Center of Changsha County Administrative Law Enforcement Bureau, said that the device can collect the concentration of total volatile organic compounds, fine particulate matter, inhalable fine particles, ozone and other air pollution sources during the flight. Once the value is abnormal, it can become an early warning data. Real-time return, law enforcement team members can find out in time, and rushed to the scene for verification.
In addition, the Tianwang electronic eye all over the streets has become a weapon of supervision, and some small movements that destroy the atmospheric environment are “present”.
With the help of science and technology, law enforcement agencies have achieved accurate detection and precision strikes on environmental violations. According to statistics, since the blue sky defending war in Changsha, the “three-month palliative” time node on April 15th, the city’s slag dust and dust pollution on the construction site have been effectively controlled, and the scum dirt has been effectively curbed; the city has banned the sale of loose coal. Point 93; open burning of garbage, barbecue, burning basic control of crop stalks, the basic goal of catering and fume “treatment of the standard”; carry out “disorganized pollution” enterprise rectification, inventory 757 “scattering pollution” enterprises, shut down 455 rectification enterprises. The city’s “three-month palliative” target is basically completed.