China's automobile heavy metal pollution related standards have not reached a consensus
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A research report published by the Institute of Geographic Sciences and Natural Resources Research of the Chinese Academy of Sciences revealed that the heavy metal pollution brought by automobiles has become serious. How to prevent and treat this problem should be taken seriously by all walks of life. According to relevant person in charge of the Institute, motor vehicle pollution is an important source of heavy metal pollution in soil and dust on both sides of the highway. The heavy metal pollution of motor vehicles mainly includes lead, zinc, copper and cadmium. The sources of pollution mainly include the combustion of leaded gasoline and lubricating oil, and the mechanical wear of automobile tires and brake linings.
Although the results of this research by the Institute of Geographic Sciences and Natural Resources Research of the Chinese Academy of Sciences have been reported by many media, the reporter found that many experts and auto companies do not understand or agree with this statement.
Never heard this statement
Compared with passenger vehicles, commercial vehicles emit more exhaust gas and tires and brake linings wear more severely. According to research results, the amount of heavy metal particles such as lead, zinc, copper, and cadmium formed will be more and more. In the air, in the road dust and in the soil on both sides of the road will be more, the more serious the formation of heavy metal pollution. In an interview, the reporter found that many commercial vehicle companies are not aware of this situation.
The “leader†of the domestic bus industry?? The relevant person in charge of Zhengzhou Yutong Bus Co., Ltd. told reporters that they had never heard this statement and did not conduct any relevant research on this issue, so it was not easy to answer. Same as Yutong is Chongqing Hengtong Bus Co., Ltd. Hengtong produces a large number of natural gas buses. They do not believe that natural gas-powered vehicles will have heavy metal pollution in their emissions. Hengtong’s technical staff told reporters that they had heard this statement for the first time and had not conducted any specific research. It was not possible to comment.
The relevant person in charge of China National Heavy Duty Truck Co., Ltd., a major producer and seller of the domestic truck industry, was also surprised to hear this statement. “The world automobile has a hundred years of history. At present, it has not been heard where the environment around the road has become bad because of the heavy metal pollution of motor vehicles. Is there any heavy metal pollution in motor vehicles? Is it in diesel vehicles, gasoline vehicles, or new energy vehicles? These issues are still not a clear statement, so this conclusion is subject to further research.†The responsible person believes that even if there are heavy metal particles in the emissions of motor vehicles, the green belt along the road can pass through detention, adsorption or filtration, etc. Ways to effectively solve this problem. Therefore, this statement is not as serious as people think.
Still in the research phase
In the interview, some experts on motor vehicle emissions also told reporters that they are not familiar with this statement.
Hu Min, director of the National Joint Key Laboratory of Environmental Simulation and Pollution Control at Peking University, believes that there is indeed a problem of heavy metal pollution in motor vehicles. These heavy metal particles are deposited in the soil on both sides of the road and have an impact on the surrounding environment. The extent of the impact, there is no specific experimental study data, it is not easy to draw conclusions.
Bao Xiaofeng, chief expert of the Research Institute of Mobile Source Pollution Control at the Chinese Research Academy of Environmental Sciences, also told reporters that he did not conduct relevant experiments on this issue. Without experimental data, it is impossible to determine what heavy metals and heavy metals are contained in motor vehicle emissions. How many opinions and how big are these issues? However, Bao Xiaofeng believes that there must be heavy metal pollution in motor vehicle emissions, and the degree of pollution depends on the quality of oil products.
“Our testing center has not done any tests in this area. I have seen relevant arguments in some foreign papers. There are heavy metal pollutions in motor vehicle emissions. There is no such thing as a unified view of the extent of this pollution.†Li Hao, director of the National Bus Quality Supervision and Inspection Center, told reporters. "Now, there are no standards for the detection of heavy metal particles in the mainstream standards for automobile exhaust emissions, and there are no authoritative standards for its detection methods."
“At present, the problem of heavy metal pollution in motor vehicles is still in the research stage. There is no consensus on some specific issues. Therefore, this issue remains to be further studied.†Li said.