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Motor vehicles become an important source of air pollution, the urgency of pollution prevention and control is becoming increasingly prominent

 Last Update: 2021-09-19
 Source: Internet
 Author: User

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[ Focus on Chemical Machinery Equipment Network ] In recent years, with the rapid development of China's automobile industry, the number of motor vehicles has increased sharply.
Motor vehicle exhaust has become an important source of air pollution, and the urgency of prevention and control of motor vehicle pollution has become increasingly prominent
.

Chemical machinery and equipment network hotspots pay attention to chemical machinery and equipment

Recently, the Ministry of Ecology and Environment released the "Annual Report on China Mobile Source Environmental Management (2021)" (hereinafter referred to as the "Annual Report"), which announced the national mobile source environmental management in 2020
.
The "Annual Report" shows that mobile source pollution has become an important source of air pollution in China's large and medium-sized cities, and is an important cause of fine particulate matter and photochemical smog pollution
.

According to the data, the composition of motor vehicle exhaust gas is quite complex, with more than 100 kinds, and the pollutants emitted are mainly carbon monoxide (CO), hydrocarbons (CH), carbon hydroxides (HCO), nitrogen oxides (NOx), and particulate matter.
and lead compounds
.

According to the "Annual Report", in 2020, the total emissions of four pollutants from motor vehicles nationwide will be 15.
93 million tons
.
Among them, carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM) emissions were 7.
697 million tons, 1.
902 million tons, 6.
263 million tons, and 68,000 tons, respectively
.

Automobiles are the main contributor to total pollutant emissions, and their emissions of carbon monoxide, hydrocarbons, nitrogen oxides and particulate matter exceed 90%
.
Nitrogen oxide emissions from diesel vehicles exceed 80% of total vehicle emissions, and particulate matter exceeds 90%; gasoline vehicles exceed 80% of total vehicle emissions and hydrocarbons exceed 70%
.

It is not difficult to see that although the large-scale use of motor vehicles has provided great convenience to people’s production and life, it has also brought serious impacts on the urban environment, and has even become a major source of urban air pollution, resulting in air environmental quality.
Worsened
.

Therefore, in order to improve the environmental quality, it is more important to monitor motor vehicle exhaust
.

It is reported that through the use of various advanced vehicle monitoring and exhaust remote sensing, it is conducive to the construction of an intelligent vehicle emission intelligent monitoring system and the construction of an information integration platform for the management and monitoring center to support the operation of the system.
In the process of urbanization, it is helpful to solve the problem of urbanization.
Pollution problems can better control the exhaust pollution of motor vehicles
.

Among them, the remote sensing monitoring of motor vehicle exhaust gas is to detect the exhaust gas of a normal driving motor vehicle in a non-contact manner.
It can quickly find high-polluting vehicles in driving without affecting the normal driving of drivers, and at the same time, it serves as a warning to the owners of high-polluting vehicles.
Role
.
It uses optical principles to realize long-distance sensing, and detects the concentration of CO, CO2, HC, and NOx in the exhaust gas of the vehicle during the driving process
.

　　Motor vehicle exhaust remote sensing monitoring has the advantages of fast detection speed, high degree of automation, and no need to stop inspection.
It can accurately monitor the operating conditions of automobile engines and truthfully reflect the actual situation of automobile exhaust emissions.
It is relatively convenient and has a promising development prospect
.

　　In addition, as the information source of the automotive electronic control system , the gas sensor is a key component in the automotive exhaust after-treatment system, which determines the control level of automotive emissions
.

sensor

　　At present, the gas sensors used in automobiles mainly include carbon dioxide concentration sensors, oxygen sensors, nitrogen oxide sensors, particulate matter sensors, and hydrogen (H2) sensors for new energy vehicles
.
The application of related sensors can further analyze the exhaust emissions, and then perform lower emission treatments on the exhaust gas based on the analyzed data and combined with other instruments
.

　　In addition, the release of relevant policies will also promote the forward development of the entire testing industry.
For example: On July 27, 2017, the Ministry of Environmental Protection issued the "Measurement Methods and Technical Requirements for Exhaust Pollutants from Diesel Vehicles in Use ( Remote sensing detection method) ", to promote the development of domestic new vehicle exhaust remote sensing detection industry, driven by the motor vehicle exhaust detector extensive use of the device
.

Detector

　　Also on May 14, 2020, the Ministry of Ecology and Environment, the Ministry of Industry and Information Technology and other four departments jointly issued the "Announcement on Adjusting the Requirements for the Implementation of the National Sixth Emission Standard for Light-Duty Vehicles", adding a "tightening curse" to motor vehicle exhaust emissions
.

　　In the "14th Five-Year Plan" mobile source pollution prevention and control, the Ministry of Ecology and Environment continued to plan its layout, and it further promoted the battle of diesel truck pollution control, coordinated "oil, road, vehicle, and enterprise", improved the level of mobile source environmental management, and effectively reduced mobile source pollution.

。Discharge .
At the same time, as the age of vehicles in use continues to grow, the frequency of vehicle inspections will continue to increase, which is also promoting the development of the vehicle inspection system supply market
.

　　Conclusion: The "Annual Report" shows that motor vehicle exhaust has become one of the important sources of air pollution, and the urgency of prevention and control of motor vehicle pollution has become increasingly prominent.
Therefore, for a period of time in the future, the control and emission reduction of motor vehicle exhaust will rise to become a new development in air pollution control.
In the field, the potential market space is more than 100 billion yuan, and the motor vehicle exhaust remote sensing monitoring equipment market will usher in a huge market demand space
.

　　Original title: Motor vehicles become an important source of air pollution, the urgency of pollution prevention and control is becoming increasingly prominent

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