5" is closely related to.These pollutants in the air is not the simple superposition of each other, but ongoing chemical, physical reaction, the pollution becomes very complex.Wu Dui thinks, haze weather is the essence of fine particle pollution, governance of fine particles is more difficult than the management of coarse particles, dust pollution and control of sulfur dioxide pollution have been much more difficult, he said, London has been known as the fog, according to current scientific knowledge, it should in fact be called haze are.
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, especially in Britain, Belgium, Luxemburg these regions is the original coal, iron and steel, energy is concentrated, it pollutes the strength reached the pollutants in the atmosphere condenses into floc drop extent, with snow.Europe and the United States of America less severe situation of China has no experience, but no matter how China is compact, very short time the dust pollution.They may have experienced more than one hundred years, so they experienced forty or fifty years, China will be 10 years, went to the new compound pollution of twenty or thirty years, China just a few years into the new compound contamination stage.
So the problem of long-term sex and arduous sex in this place."China must hit at least half, to twenty or thirty years.Another if we in accordance with the WHO quality standards from the first stage, second stage, third stage to the fourth, so four steps then consider every step is 3-5 years, I feel that it would take 20 years.
"Wu Dui expresses, from Europe, North America management of this process, until now, they have experienced 50 years.Vice Minister Zhang Lijun said, according to the national standard, the 70% City air quality standards; but if the increase in PM2.
5 monitoring index, 70% City National standards.Although, the city has begun to incorporate PM2.5 into monitoring, but Wu Dui said, haze is mainly fine particle pollution, fine particle apart from energy, industrial emissions, sulfate, of course is not only energy, there are other industries.
As long as there is burning, including a furnace, may have lined up.Since its composition is such, you reduce later start from here.Haze is not a cure, just from the oil quality, vehicle emission standards and gas station transform these three steps to begin, should be able to get result.
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