What is the impact of exhaust fumes from starting a car on the natural environment?

The Greenhouse Effect and Global Warming!

The world is getting warmer.

The exhaust pollution of the car is not too obvious, mainly the dust on the road, driving over the dirt road, the dust is really terrible, and the exhaust pipe on some trucks is facing down, which is the most obvious, the country should let the automobile manufacturers change the exhaust port to flat out or upward, and the exhaust port must not be downward. There are also mainly industrial emissions, not only air, but also underground water sources, rivers, etc. These have led to our current poor air quality, but people are also trying to find ways to limit this part of the car, and the air polluted by car exhaust is mainly the emission of toxic and harmful gases, such as nitrogen dioxide.

sulphur dioxide, etc., while carbon dioxide.

It will also exacerbate the greenhouse effect.

The number of cars can not be said to be the most in the north, traffic jams in Shenzhen and Shanghai are also commonplace, why no one has no haze, if it is caused by the factory, we northerners dare to say that there are more factories than the south? What about real estate? Dusty.

How much dust drifts after the rainy season, and the high-level in the south does not have to be less in the north, why the oil has been upgraded, the haze is still the same, and even the steel furnace baked cakes can't be eaten. Many contradictions in development arise, not only combustion and emissions, but also this situation will occur when combined, otherwise our excellent experts would have known where the root cause is. No, the haze came and racked their brains to come up with various restrictions to disturb the normal life of the people.

Why is there smog in winter? You see, in the early years we burned crop straw or wood in the winter, and now we burn coal. Collective heating is only for a part of the urban area, not all of it, the city is too fast to heat can only burn coal, this total amount is very large, of course, the car tail steam is only a part of the haze also has a supply.

Coal-fired power plants, chemical plants, pharmaceutical factories, industrial smoke, and civil coal-fired boilers are the main sources of pollution, and the impact of cars is not large, because there is no smoke in car emissions, you see Shanghai, Guangzhou and other cities which city has fewer vehicles? There was no haze either.

Because the exhaust fumes of the car will emit some harmful gases, and at the same time, it will also reduce the visibility of the air. It also makes the air more bacteria and pollution. At the same time, it will also increase the number of people in the air. This affects the quality of the air.

The main reason is that the exhaust gas of the car contains a large number of harmful components to the air, and there is a large amount of carbon dioxide in it, which causes atmospheric pollution, and these gases will gradually rise to the ozone layer, which will have a great impact on the ozone layer, and will also make the global temperature warm, triggering a series of reactions.

It will increase carbon emissions, it may also emit some sulfides, it may also cause poisoning, it will produce toxic gases, it will also affect the ozone layer, and it will most likely lead poisoning.

When the emission is up to standard, it becomes water and carbon dioxide.

The main hazard of automobile exhaust is the formation of photochemical smog. Residual hydrocarbons and nitrogen oxides in vehicle exhaust occur under the action of sunlight.

The highest content of carbon monoxide in automobile exhaust is that it can enter the alveoli through the respiratory tract, be absorbed by hemophilia, and combine with hemoglobin to form carbon.

The nitrogen oxides in automobile exhaust are less abundant, but they are very toxic, and they are 3 times more toxic than sulfur-containing oxides. Nitrogen oxides enter the alveoli.

There are more than 200 kinds of hydrocarbons in automobile exhaust, of which the concentration of C2H4 in the atmosphere is 1/100,000).

The impact of automobile exhaust on air pollution has become increasingly obvious, and it is intensifying year by year. According to the research results of the "Causes and Treatment of Heavy Air Pollution Project" released by the Ministry of Environmental Protection, coal burning, industrial production, and motor vehicles are the main causes of heavy pollution in the Beijing-Tianjin-Hebei region and surrounding areas in autumn and winter.

Most of the contribution to vehicle exhaust is indirect, and the exhaust contains substances such as nitrogen oxides and volatile organic compounds (VOCs), which are gases that are not reflected in the measured air quality testers. But these gases are also important "raw materials" for production.

Liu Bingjiang, director of the Department of Atmospheric Environment Management of the Ministry of Environmental Protection, has said that China's motor vehicles increase by nearly 30 million every year, accounting for about 30% of the world's annual growth, and continue to grow, and now the number of motor vehicles has reached 100 million, of which 100 million cars, the growth rate and emissions are indeed relatively large, nitrogen oxides and VOCs emissions are relatively large.

Why are nitrogen dioxide concentrations in China declining so slowly now? Liu Bingjiang explained that China's major industrial products are now in a relatively stable period, and only the consumption of oil products has maintained a relatively high growth rate. The proportion of nitrogen oxide emissions from motor vehicles in the country's total nitrogen oxide emissions has increased year by year, and has now reached about one-third.

In addition, the analysis of fine particulate matter** also shows that motor vehicle emissions have become the primary air pollution in many large and medium-sized cities**, and the contribution rate of mobile source emissions in cities such as Beijing is about 30, which is the primary contribution of fine particulate matter**.