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Air pollution into a fatal killer Pollution standards introduced without delay

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Air pollution into a fatal killer Pollution standards introduced without delay

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[Abstract]:
Recently,researchersfromtheEnvironmentalSciencesAcademyandtheStateEnvironmentalProtectionAgencyoftheUniversityofNorthCarolinaattheUniversityofNorthCarolinareleasedaresearchreportintheEnvironmentalRese

Recently, researchers from the Environmental Sciences Academy and the State Environmental Protection Agency of the University of North Carolina at the University of North Carolina released a research report in the Environmental Research Newsletter saying that the number of people currently suffering from air pollution globally is more than 2 million each year. The report also pointed out that East Asia, India and Southeast Asia are the hardest hit areas of air pollution. Only India, a country, loses at least 500,000 people by air pollution every year.
Coincidentally, last year's United Nations Environment Program released "Global Environment Outlook 5" that 700,000 people die each year due to ozone-induced respiratory diseases, there are nearly 2 million premature deaths and particulate matter related.
In addition, the recently released Global Assessment of Burden of Disease 2010 states that the current worldwide fine-particle pollution causes premature deaths of over 3.2 million people and affects the health of more than 76 million people each year.
More than half a century ago, the tragedy caused by air pollution, such as the smoke incident in the Maas Valley in Belgium in 1930, has not yet gone, and these staggering numbers have all the air pollution problems to the cusp, then what is the culprit of air pollution Culprit it?
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Vehicle exhaust is behind the black air pollution
Three episodes of photochemical smog in Los Angeles in 1943, 1955 and 1970 resulted in a chemical reaction of hydrocarbons caused by the burning of gasoline, resulting in hundreds of deaths from respiratory failure caused by poisoning of the senses. Scientific analysis shows that as many as 100 kinds of compounds are contained in automobile exhaust. According to a study released by the Association of Air Cleanness and Environmental Protection in the UK, the number of people who die of air pollution in the United Kingdom each year is 10 times more than that of traffic accident victims.
It is reported that vehicle exhaust emissions of nitrogen oxides and hydrogen compounds, oil particles, etc., in the air chemical reaction, the formation of aerosols nitrate, organic matter and elemental carbon is the main source. They also mix and interact with natural aerosols such as sand and sea salt to form complex contaminants that absorb and reflect sunlight and make the air dim and dirty.
At present, China's fuel quality standards are not strict enough. Since February 1 this year, Beijing has taken the lead in implementing the Beijing-V emission standard for newly-added motor vehicles nationwide, which has strengthened the limits of pollutants such as nitrogen oxides. However, the standard of vehicle emission in our country still lags behind that of developed countries mainly due to the low fuel standards (especially the excessive sulfur content) and the lack of tail gas emission control devices.
Based on the fact that automobile exhaust has become an important source of air pollution, the automobile exhaust control will surely enter a new era in the future. Among them, the industrial space for such sub-sectors as the oil upgrade and heavy truck implementation of "National IV" emission standards exceeds 100 billion yuan.
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Air pollution control is the way out
Europe and the United States have paid a heavy price for air pollution. After painstakingly thinking hard, they vigorously carried out governance and achieved good results. Whether in Dickens's novels or in Monet's oil paintings, smoke-filled and polluted London can be seen, but after the smoke incident of 1952, after more than half a century of rehearsal governance by the British government, not only one after another Related bills, and the use of new technologies to control pollution, the effect is remarkable.
In order to tackle the harsh, acid rain-prone Ruhr industrial area, Germany implemented 100 "air cleaning and action plans" to limit the emission of particulate matter through legislation and to reduce emissions through the installation of filters and other technical measures. France, through its contingency programs and long-term measures, has taken a two-pronged approach to pollution control.
From the perspective of air pollution sources, coal combustion, vehicle exhaust pollution, industrial emissions, site dust, biomass combustion constitute the most important sources of pollution. Relative to coal and industrial emissions, it may be easier to manage emissions from motor vehicles.
As the world's largest motor vehicle production and sales for three consecutive years, which undoubtedly brought a vast market space for related industries. At present, only Beijing Municipality starts to implement the vehicle emission standards of "Beijing Five" equivalent to "Euro V" in China. Shanghai and Guangzhou are still implementing the emission standards of "State 4" and most of China still implement the "National 3" standard. As the large-scale diesel engine exhaust pollution, the pollution has long been the city's illnesses, exhaust gas treatment therefore urgent, air filter market is in urgent need of standardization.

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