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Automobile exhaust of carbon monoxide with the hemoglobin in the blood of 250 times faster than oxygen. So, even if have a trace of carbon monoxide inhalation, may also be terrible hypoxic damage to the person. Light dizziness, headache, heavy brain cells will be permanent damage; Nitrogen, oxygen, hydrogen and oxygen compounds can cause a stimulus-response, susceptible people suffering from eye diseases, laryngitis, exhaust gas containing hydrogen nitrogen compounds in benzopyrene is carcinogenic substance, it is a high divergence of particles, can be suspended in the air for a few days and nights, in the human body can't discharge, after accumulating the critical concentration and stimulate the formation of malignant tumor.

Peking University institute of environmental medicine, points out that air pollution poses a growing threat to the health of people, and these 70% poisonous gas from automobile exhaust. According to the medical research and analysis, automobile exhaust is the main chemical composition of the sulfur dioxide, sulfur oxides, nitrogen oxides, lead. It can cause respiratory tract infections and asthma, lung function decline, serious can cause emphysema. Lead in automobile exhaust generally distributed in the area of about 1 meter above the ground, is teenagers with breathing, and lead pollution harm for teenagers.

But the freight vehicles put out a lot of night the city lead exhaust still cause pollution to the city. Not only that, for the first time of pollutants in the sunlight (uv) under the action of photochemical reaction will generate secondary pollution, the formation of smog pollution phenomenon, called photochemical smog. Photochemical smog composition is complicated, they damage to people and animals is mainly manifested in the eyes and mucous membrane irritation, headache, breathing disorder, deterioration of chronic respiratory disease and lung function were abnormal, etc. Expert proposal, outdoor sports as far as possible away from the traffic trunk line.

Fatal automobile exhaust, and tail gas to the owners themselves the most direct harm, as well as the person sitting in the car damage have how old?

First: the owner itself in a space that exhaust gas concentration is very high -- - it is well known that air conditioning when the window closed, in-car air flow, air turbidity, and the engine running out of carbon monoxide gas will accumulate in the car, may cause ride poisoning and even death. People often rode carsick, but open the window, will be better. The reason is: carbon monoxide by respiratory tract after entering the body's blood, and blood red blood protein Hb, formation of carbon oxygen hemoglobin, led to the decrease of the oxygen-carrying ability, make human body reaction, such as hearing because the cochlear nerve cells inside the ear of oxygen and damage, temporary appeared dizziness, vomiting, nausea, and no one motion sickness by train.

For pregnant women and children, the second: the harm of bus, especially cause serious damage to vulnerable children's respiratory system - whether as a pregnant woman and early embryonic will have corresponding effect of the pollution, are many related factors, so as for pregnant women, especially in the first three months of pregnancy, if in the case of conditional, should avoid too much or in the bad environment of life over a long period of time, because these substances may affect human embryos, long-term exposure to high concentrations of exhaust gas is easy to cause adverse pregnancy outcome hypoxemia. Exhaust lethality is extremely strong. According to the centers for disease control and prevention experts confirmed that long-term exposure to high concentrations of car exhaust can lead to hypoxemia, appear have a headache, dizziness, fatigue, upset, impatience, the symptom such as memory loss, a greater influence on children's IQ.

Third: exhaust pollution, easy to cause the male sexual function decline, physiological activity decreased, cause skin rough -- -- because benzene and than women, organic lead compounds on the physiological activity of the strongest sperm has great convergence, at the same time very big influence on women's skin.

Fourth: the regular car maintenance and cleaning -- - many people only pay attention to the outside of the car wash, feel the car clean, but the car engine will clean, and is more important than external cleaning, keep exhaust gas of automobile clean, elimination of carbon deposition is also particularly important to a project. And now also have a clear inspection standards of the state, and its regulation is higher and higher.

Now testing station is a comprehensive monitoring, country of auto detection is more stringent.