汽车尾气对环境的影响(英文) 汽车尾气对环境的影响(英文)

　　The main harm of automotive exhaust fumes are formed when. Secondly in automobile exhaust the highest content of carbon monoxide, carbon monoxide human impact. In automobile exhaust nitric oxide content, but less toxic, toxic sulfur oxides is three times. Hydrocarbons, which has more than 200 in atmospheric concentration of C2H4 0.5 PPM (10 PPM), can make some plant developmental anomalies. In automobile exhaust also found there are 32 species pahs, including 3 - benzopyrene carcinogenic substance, etc. When benzopyrene in air concentration of ug/m3 0.012 to get lung cancer among people, the number will be increased significantly. From the highway, the road traffic saic, higher for lung cancer mortality. Sulfur dioxide and suspended particulate matter, can increase the incidence of chronic respiratory disease, damage the lung function. So2 in the atmosphere, with high content of acid. "" precipitation, The automobile exhaust lead compounds with the breath, can enter blood lead through maternal into the placenta, endanger the fetus.
　　Purple bamboo 23:24:57 no.27 u so
　　According to China's first "car in environmental pollution condition investigation shows, the survey found that Beijing area within the car is not optimistic, environmental pollution situation of environment inside there are 93.82% different degree of pollution. In the survey, the 1175 car after 2003 for the purchase of new car, to survey 8 total more than 90%. Another car is 107 May 1994 to December 2002 between the old car. Nowadays, the products range covers models of high, medium and low level of each paragraph, involving 91 38 domestic automobile manufacturers and the six famous international motor. Test results showed that all testing items are reached this survey activities in the reference standard of indoor air quality standards (GB/T18883-2002) to accept the test vehicle for 52, the total of the measured 6.18%. The new car, the harmful material, the formaldehyde exceeds 1.9 car by investigation of new 23.4%of, 610 vehicles chroma of benzene, the car has been testing total 75.1%, Toluene overweight, measured for 663 total 81.6% car, 199 vehicles, xylene exceeds the amount has been measured 24.5%, Carbon monoxide overweight, measured 358 car 44.1% total, Carbon dioxide exceeds 40, total 4.9% of measured, Total volatile organic compounds (TVOC) exceeds 570, accounts for the new 70.2% total measurement, Sulfur dioxide and nitrogen oxides in survey found overweight detection (test for static test. When the car started in the course of driving, nitrogen, and sulfur dioxide concentration changes), but this doesn't mean value in the car driving condition. In the detection of environment inside of harmful substances, the highest value for the detection of formaldehyde 0.756 mg/m3, beyond the standard 6.56 times, The highest value for 1.699 benzene detection, beyond the standard mg/m3 14.45 times, The highest value for 16.239 toluene detection, beyond the standard mg/m3 transported creating it times, The highest value for 3.668 xylene detection, beyond the standard mg/m3 17.34 times, Carbon monoxide testing for 41.38 mg/numerical highest standard 3.14-fold m3, beyond, The highest value for 0.780% carbon dioxide detection, beyond the standard 6.8 times, Total volatile organic compounds (TVOC) detection for 10.2 mg/numerical highest standard 17 times, m3.
　　Thus, car inner environment pollution for toluene, first for dimethyl benzene, benzene, formaldehyde, this several TVOC and harmful substances are more serious pollution. If long-term exposure to ride with the health causes bigger harm. In May 1994 by December 2002 to purchase car interior environment between the sampling testing found that the environment pollution is within the old car is very common. The difference lies in the car and car air pollution, in the relatively low concentration, belong to mild pollution. If the proper ventilation or effective management, can achieve safety standards. Thus, the polluting substances within the car will elapse as time gradually ease, but need a relatively long process. Interior environment of air pollution sources include: (1) auto parts and interior decoration materials (plastic, rubber, paint coating fabric, etc) contain harmful substances used in automotive interior environment to release process, air pollution caused by car. Main pollutants formaldehyde, benzene, toluene, hydrocarbon and halogenated hydrocarbon, etc. (2) external contamination in the car, if the seal of the external environment, environmental pollutants will enter the car, car air pollution. Automobile emission of pollutants into their car environment, including automotive emission of pollutants, or automotive air conditioning after long-term application of accumulated in air. Pollutants are mainly of carbon monoxide and nitrogen oxides hydrocarbons, and so2, microbial, benzene, olefins, aromatic hydrocarbons, particle etc. The new car driving in half a year, never in road closed the window. Should use less as far as possible, in order to strengthen vehicle air conditioning ventilation, make interior harmful substances as soon as possible. If the owner is in his garage, can not drive often opened the door and window ventilated, Car owners are strictly choice, prevent to decorate the containing harmful substances to some glue, seating pad to buy a new car, car seat cover inside contain other textiles, best first formaldehyde rinse again using, Select the natural material production of perfume, at present, a lot of perfume is quality, itself has certain pollution, Using vehicle air to purify a product should pay attention to choose to have effect and side effects of small, If the owner himself driving car after a period of time, for example, have found signs of reaction, breathing stimulation feels smoked eyes, even dizzy, if car smell in three months even six months are not completely to send out, should make a vehicle air quality inspection, and remove the car as soon as possible sources that, Four people to pay special attention to the new car pollutant hazards: physical weak, women, children and have allergic constitution, these people to avoid driving and take a long time. Thus, car inner environment pollution for toluene, first for dimethyl benzene, benzene, formaldehyde, this several TVOC and harmful substances are more serious pollution. If long-term exposure to ride with the health causes bigger harm. In May 1994 by December 2002 to purchase car interior environment between the sampling testing found that the environment pollution is within the old car is very common.
　　The difference lies in the car and car air pollution, in the relatively low concentration, belong to mild pollution. If the proper ventilation or effective management, can achieve safety standards. Thus, the polluting substances within the car will elapse as time gradually ease, but need a relatively long process. Interior environment of air pollution sources include: (1) auto parts and interior decoration materials (plastic, rubber, paint coating fabric, etc) contain harmful substances used in automotive interior environment to release process, air pollution caused by car. Main pollutants formaldehyde, benzene, toluene, hydrocarbon and halogenated hydrocarbon, etc. (2) external contamination in the car, if the seal of the external environment, environmental pollutants will enter the car, car air pollution. Automobile emission of pollutants into their car environment, including automotive emission of pollutants, or automotive air conditioning after long-term application of accumulated in air. Pollutants are mainly of carbon monoxide and nitrogen oxides hydrocarbons, and so2, microbial, benzene, olefins, aromatic hydrocarbons, particle etc. The new car driving in half a year, never in road closed the window. Should use less as far as possible, in order to strengthen vehicle air conditioning ventilation, make interior harmful substances as soon as possible. If the owner is in his garage, can not drive often opened the door and window ventilated, Car owners are strictly choice, prevent to decorate the containing harmful substances to some glue, seating pad to buy a new car, car seat cover inside contain other textiles, best first formaldehyde rinse again using, Select the natural material production of perfume, at present, a lot of perfume is quality, itself has certain pollution, Using vehicle air to purify a product should pay attention to choose to have effect and side effects of small, If the owner himself driving car after a period of time, for example, have found signs of reaction, breathing stimulation feels smoked eyes, even dizzy, if car smell in three months even six months are not completely to send out, should make a vehicle air quality inspection, and remove the car as soon as possible sources that, Four people to pay special attention to the new car pollutant hazards: physical weak, women, children and have allergic constitution, these people to avoid driving and take a long time.
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