There is a lot of traffic on the street, do you know what are the dangers of car exhaust to people?

People often inhale car exhaust fumes, which can easily lead to respiratory diseases and even lung cancer.

Car exhaust will cause harm to the human body, especially the human stomach, and the harm of exhaust is similar to that of cigarettes.

Car exhaust contains a large number of chemical elements, which cause irreversible damage to our respiratory system.

Car exhaust fumes can inhale into the lungs and cause many diseases in the lungs.

The exhaust gas pollution is too heavy, the smell makes people nauseous and retching, and there is a hot and hot air, which affects people's breathing of fresh air.

Exhaust gases are very harmful to the human body because the carbon dioxide emitted can lose the function of organs in the body.

Excessive car exhaust emissions are released, causing climate change, rising temperatures, and serious haze.

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Automobile exhaust can directly harm people, how to prevent it?

Text: Environmental experts in the European Union believe that the most effective way to reduce the harm of car pollution to the urban environment is to adjust urban transport policies, significantly reduce the number of private cars, give priority to the development of public transportation, and promote bicycle transportation; At the same time, it is also necessary to accelerate the development and popularization of environmentally friendly vehicles and reduce dependence on fossil fuels.

1. Control the number of cars In many large and medium-sized cities, the number of cars has actually been "overloaded". It is possible to use macro-control methods to improve the number of automobiles, appropriately reduce the purchase of automobiles, promote the conversion of small automobile manufacturing enterprises, and control the number of automobiles within the scope allowed by the ecological balance. At the same time, it is necessary to make the rapid development of public transportation such as buses and subways, and advocate cycling, taking buses and subways to citizens; Civil servants should also set an example by using public transport as much as possible, using less private cars and minimising vehicle emissions.

2. Strictly control and improve the quality of gasoline By the beginning of the 21st century, most cities around the world have banned the use of leaded gasoline. It is necessary to raise the emission standards of automobile exhaust pollutants, strictly control them, and prevent gasoline that does not meet the standards from entering the market.

3. Accelerate the adoption of advanced automobile exhaust treatment technology, and eliminate or transform vehicles that do not meet exhaust emission standards. 4. Promote gas vehicles fueled by natural gas, and transform gas vehicles to solve the problems of engine performance decline and large space occupied by gas storage cylinders.

5. Turn waste into treasure. Scheme A: The fuel and air in the cylinder are compressed and turned into high-temperature and high-pressure gas, and the energy is still very high after combustion.

If this energy is used and converted into engine power, it not only saves fuel, but also reduces exhaust emissions. Scheme B: Automobile exhaust contains nitrogen oxides and sulfur oxides, if a collection and conversion device is installed on the exhaust exhaust pipe to convert it into industrial raw materials nitric acid and sulfuric acid, although the collection amount may not be much, but the accumulation is a lot, which reduces the pollution to the atmosphere while the resources are carried out.

6. Strengthen publicity and improve people's awareness of environmental protection Strengthen the publicity of the importance of environmental protection, improve people's awareness of environmental protection, let the masses consciously use public transportation, do not buy cars with substandard exhaust emissions, and resolutely do not buy or manufacture leaded and low-quality gasoline.

Removing carbon deposits from car engines can reduce the harm of car exhaust. There are many reasons why the exhaust is large, the most important of which is that the engine fuel cannot be burned completely. Let's take a look at the carbon black situation of the exhaust pipe, generally speaking: the car exhaust and the engine carbon deposit are twins.

Carbon deposits are constantly generated, just like dust in everyday life, only by constantly cleaning up the engine carbon deposits. When the exhaust pipe has the following conditions:

1 Carbon-free: Wipe the test tail pipe with white paper, only pale yellow. == The engine has no carbon deposit, and the exhaust is odorless

2 Floating carbon: In the same way, it is found that there is a little black carbon in the exhaust pipe, and there is not much left == when you pat it gently, the engine is normal. , the exhaust is basically odorless.

3. Thick carbon: Using the same method, it was found that a lot of black carbon in the tail pipe was very thick, and after slapping the white paper, there was still a lot of carbon black, which needed to be cleaned up in time. You can smell gasoline.

4. Oil and carbon: In the same way, it is found that the white paper has black carbon, and there are oil stains, and there is a situation of burning engine oil, and the exhaust gas will be very large and pungent. Timely repairs are required. Otherwise, it is not a matter of cleaning up carbon deposits and exhaust gases.

5 Oil and carbon plus smoke: It can be judged that there is a serious problem with the engine due to carbon deposits and other reasons. Professional car repair is required.

6 If the spark plug is disassembled, the basic judgment method is the same, which is to see whether the spark plug head has carbon and oil. There are seven colors to judge. Vehicle exhaust and carbon deposits.

7. Buckle space: Jiuqi Liu'er Jiushan Temple --- use - DP engine container - 30 minutes to clean up engine carbon deposits, 300,000 kilometers of net exhaust fuel saving. --Use --dp engine beauty container 30 minutes to start cleaning up the engine carbon deposits refers to:

Use a white towel to put it at the tail pipe, and you can see carbon black particles on the white towel when you step on the accelerator, which proves that the carbon deposit has been cleaned; 300,000 kilometers of net exhaust fuel saving means: when the engine carbon deposition is cleaned up, the car exhaust pipe will have less carbon until there is no carbon black. Because the carbon deposits in the engine are automatically removed, the exhaust does not smell of gasoline.

Carbon removal = fuel saving = net exhaust qq space: Jiuqi Jiushan Temple.

There's no way around this, wear a mask. It is also recommended that the boss take some other measures to ventilate better. Also, don't do it all the time, go out and get some fresh air.

1 Flameout! 2 Slide as much as possible 3 Stay away from the warehouse or in the warehouse and try to move as little as possible 4 Children stay away from the exhaust pipe It is best not to approach.

To prevent pollution from automobile exhaust is to prevent lead poisoning.

Supplementation with calcium, zinc, iron, and selenium can reduce intestinal absorption of lead.

Get regular check-ups and wash your hands and face frequently. Pay attention to maintenance.

Try to wear a mask when you go to work, etc. Hope it helps.

Swap gasoline for compressed natural gas.

Drive less cars, or don't drive at all.

In the busy streets, puffs of light blue smoke are spewed out from the rear of motor vehicles, which is the "main culprit" of air pollution - car exhaust. The "automobile disaster" has been formed, and the resulting automobile exhaust is even more harmful.

All the world's largest cities are now facing the problem of worsening air pollution. In many European cities, vehicle emissions are the main source of PAH pollution in the air**, accounting for 35% of the year. Studies have found that there are hundreds of different compounds in automobile exhaust, among which solid suspended particulates, carbon monoxide, nitrogen oxides, lead and sulfur oxides are responsible for air pollution.

These pollutants can also form secondary pollutants such as photochemical smog and acid deposition through atmospheric chemical reactions. A car emits exhaust gases three times more than its own weight every year. Exhaust fumes from cars are endangering every pedestrian walking on the street.

Car exhaust is the "number one killer" of air pollution.

This gas emission not only smells weird, but also makes people dizzy, nauseous, and affects people's health. In the case of not many vehicles, the self-cleaning ability of the atmosphere can still dissolve the toxins discharged by the car. But with the rapid increase in the number of cars, traffic congestion has become commonplace, and the advantages of convenience, comfort and efficiency that cars should have are gradually offset by too many vehicles.

The "automobile disaster" has been formed, and the resulting automobile exhaust is even more harmful. Scientific analysis has shown that automobile exhaust contains hundreds of different compounds, including solid suspended particulates, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead and sulfur oxides. A car emits harmful exhaust gases three times more than its own weight in a year.

The British Association for Clean Air and Environmental Protection has published a study [2] that 10 times more people die from air pollution each year in the UK than traffic accident victims. If you still have to wear a mask when you go out, Puweixin has Tmall imported from the United States, which can be effectively filtered.

The main reason is that car exhaust contains a large amount of lead. After the gasoline passes through the cylinder of the car, the remaining lead cannot be dispersed, and the point will be discharged into the air, which can poison people.

(1) the increase of automobiles brings convenience to people at the same time, but also brings negative effects to people, and the negative effects mainly include: causing traffic congestion, noise pollution, air pollution, etc. Air pollution;

2) The main components of harmful pollutants emitted by automobiles are: nitrogen oxides, lead compounds and other substances. Lead compounds pollute the atmosphere and endanger people's health

Therefore, C

The floor height that the exhaust can reach is generally 9 to 11 floors.

The floor height that can be reached by the exhaust gas of the car is:

Regardless of the type of gas pollution, the heaviest ones are on the 9th to 11th floor, because the height is mostly around 30 meters, which is exactly the height at which the particles are suspended.

The force of the street wind causes the dusty air currents to "hover" up and down a certain area between the tall buildings. Pollutants near the ground rise to a certain height with the airflow and then dissipate downward, that is, between the 9th and 11th floors.

The floor height that car exhaust can reach is generally between 9 and 11 floors.

1. No matter what kind of particulate suspension, the heaviest is between 9 and 11, because this height is mostly about 30 meters, and it is also the suspension height of most particulate suspensions.

Second, due to the effect of the wind, the air flow containing dust "hovers" up and down in a certain area between high-rise buildings. Near-ground pollutants rise to a certain height and then dissipate downwards with the airflow, hovering between floors 9 and 11.

No matter what gas pollution. The heaviest is on the 9-11th floor, because that height is mostly around 30 meters, and this floor is exactly the suspension height of the particulate suspended solids. Due to the "canyon effect", there is now a "pollutant high density area" in the middle of high-rise housing in many residential areas.

To put it bluntly, the dust of these buildings will linger between the 9th and 11th floors, take a break, and then slowly "return to the roots", in the process, the occupants will "breathe and share the same fate" with the dust for a period of time before "kissing goodbye". Of course, the "canyon effect" refers to the surrounding bus arteries or factories, as well as high-rise residential buildings. Under the action of the street wind, the air flow containing dust does not move smoothly, but "hovers" up and down in a certain area between the tall buildings.

Pollutants near the ground rise to a certain height with the airflow and then dissipate downward or horizontally. This "height" is about 30 meters. That is, between the 9th and 11th floors.

Plus the sentence is true, it is.