How to treat air pollution in the inner ring road?Guangzhou Ecological and Environment Bureau: Some sections will launch a pilot to spray dust suppression

Inner ring circuit installation atomized spray equipment renderings of Liwan Area

How to treat air pollution in the inner ring road? After the people's congress representatives were proposed, the relevant departments quickly followed up and handled it

Yangcheng Evening News all -media reporter Liu Zhuonan intern reporter Lai Yan

Many citizens living in Guangzhou know the inner loop. The inner ring road with a total length of 26.7 kilometers surrounds the central urban area of ​​Guangzhou. It is a very important transportation line, but due to large traffic flow and traffic congestion all year round, air pollution is caused. Now, air pollution rectification on this road will usher in a "new move".

A few days ago, the Standing Committee of the Guangzhou Municipal People's Congress carried out the theme activities of the "Better Practice of the People's Congress" and went to the Guangzhou Ecological and Environment Bureau to investigate. In 2022, the people's congress deputies suggested to handle the work and supervise. At the scene, the Municipal Ecological and Environment Bureau reported on the handling of the "Suggestions on Controlling Internal Ring Dust and Motor Vehicle exhaust pollution (No. 20222019) proposed by Chen Jing, a representative of Guangzhou Municipal People's Congress. It is clear at the meeting that the suggestions of representatives will be adopted, the experience of the road dust suppression spray project of the South China Sea of ​​Foshan will be adopted, and the pilot atomization spray technology of the inner ring road in Guangzhou will be carried out to carry out road spray dust suppression. From the representative to the suggestion to the Guangzhou Ecological Environment Bureau for a reply, it took less than 6 months.

During the two sessions, the people's congress representative received two -way calls

On January 26 this year, Chen Jing, a representative of Guangzhou City People's Congress, who also participated in the first session of the 16th National People's Congress of Guangzhou, received two calls. "The telephone was called by the Guangzhou Ecological Environment Bureau. A pass was received that afternoon, mainly in the relevant situation of the suggestion. At night, I received a link to discuss with me about the relevant co -organized departments of air pollution control. Before the two sessions ended, they received a reply from the relevant departments. "Chen Jing said.

Chen Jingkou's suggestion was "Suggestions on Controlling Dust Dust Dust and Motor Vehicle exhaust pollution" during the two sessions of Guangzhou City this year. As the chief engineer of the Liwan Environmental Monitoring Station of the Guangzhou Ecological and Environment Bureau, Chen Jing has always paid attention to the ecological environment in Guangzhou.

The proposal pointed out that the inner ring road in Guangzhou has adversely affected the quality of nitrogen oxides and particulate matter due to large vehicle flow and frequent traffic congestion, and pollutants such as nitrogen oxides and particulate matter. Taking Liwan Xicun Guoying Point as an example, in 2021, the ratio of the number of air in the national control point of Liwan West Village was 79.7%(municipal assessment target: 88.9%), a year -on -year decrease of 10 percentage points; PM2.5 was 29 micrograms/cubic meter, a year -on -year increase of rising year -on -year 7.4%; PM10 is 52 micrograms/cubic meter, an increase of 13%year -on -year; ozone 172 micrograms/cubic meter, an increase of 11.7%year -on -year. The quality of air fell year -on -year, and the concentration of particulate matter and ozone pollution increased significantly year -on -year. The peak value of air pollution appears at 8:00 to 11:00 and 16:00 to 0 am, which is basically the same as the peak time of motor vehicles. After 22 o'clock, the value of pollutants is still high, mainly because the truck restrictions on the section of the urban section are terminated, and the vans in the surrounding area of ​​construction sites are frequent in and out, and the motor vehicle exhaust and dust pollution brings.

To this end, Chen Jing suggested that the combination of source control and end governance, on the one hand, reasonably plan the urban road to relieve traffic congestion; on the other hand, actively explore and study the elimination and reduction technology of fine particles in the atmosphere. The experience of road dust suppression spray projects, piloting atomization spray technology on the inner ring road of Guangzhou, effectively controlling the dust and motor vehicle exhaust pollution in the inner circuit.

Go to Foshan to investigate the application of atomization spray technology

The road planning problems of the inner ring road are relatively complicated, and multiple municipal departments need to be resolved, but the atomized spray technology has "teachers" to follow. One month after the two sessions, the Guangzhou Ecological and Environment Bureau held a symposium on this. On March 16th, the Liwan Branch of the Municipal Ecological Environment Bureau invited Chen Jing to go to the Nanhai District of Foshan to investigate the application of atomized spray technology on the spot.

Wang Hanning, deputy director of the Liwan Branch of the Municipal Ecological Environment Bureau, introduced that atomizing spraying is a new type of cooling and dust -lowering technology. The principle is to soften the water physics and use micro -pore high -pressure impact atomization technology to make the molecules split instantly in an instant split A foggy molecules of hundreds of 1-10 microns. The dust and suspended particles are covered by water mist in the air, and the self-weight increases and falls to achieve dust control and cooling effects. The atomizing spray can be used as a useful supplement to the operation of the road sprinkler and ease the "hot island effect" in the central urban area.

"We examined the atomized spray application of the Nanhai District of Foshan, and also focused on the maintenance costs after completion, such as water consumption, electricity consumption, system maintenance costs, etc., in order to better pilot in Guangzhou." Wang Hanning said.

Pilot pilots will be carried out on some sections of the inner ring road

It is reported that the Liwan District Government has started to carry out pilot work, and initially conceived the pilot installation of the atomized spray system on the West Road (West Village Road) on the Inner Ring Road, and will be further promoted according to the effect.

In addition, the Municipal Ecological and Environment Bureau also conducted road diagnosis of road motor vehicle exhaust pollution for the Liwan West Village area. From the perspective of overall traffic analysis, the daily traffic traffic of the Liwan West Village area is mainly small passenger cars, accounting for 79.59%; the truck accounts for 4.82%of all vehicle flows, and the national III and below emission standards account for about 3.36%. Essence Compared with the dying diesel engine nitrogen oxide emissions limit, the national III emission limit is 12.5 times that of the national pupae, and it is estimated that the nitrogen oxide emissions of the National III diesel truck accounts for 25%of motor vehicle emissions. In order to reduce nitrogen oxide emissions, the Municipal Ecological and Environment Bureau drafted the "Notice on the Implementation of the National III Emissions Standard Diesel Vehicle Limited Traffic Management Measures", which was reported to the Guangzhou Municipal Government to publicly solicit opinions. "I am very satisfied with the current situation of this suggestion. As a representative of the People's Congress, my suggestions have been valued by government departments, and they really do practical things for the masses. The people made the voice. "Chen Jing said.

At the supervision and investigation meeting on the day, many representatives of the Guangzhou Municipal People's Congress attended the event. "The atomizing spray technology is the first step, but the problem of the most source of air pollution in Liwan West Village section of the inner ring road is the problem of road planning. I hope to accelerate the road planning from the internal ring road to the Jinshazhou section and alleviate the pressure of the inner ring road." Zhang Chongyang, a representative of the Guangzhou People's Congress.

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