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ï»\xBF) March 26 to 29, the 'Boao Forum for Asia 2015' was held in Boao, Hainan. On the 'haze and Health' sub-forum on the 27th organized by the Ministry of Environmental Protection Chief Engineer Wan too, said to be on the starting manufacturing haze 'culprit' is the first chunk of coal and industrial emissions, the second largest block cars, in addition to factors such as dust and biomass burning. Wan Bentai also said that after assessment of Tsinghua University, Beijing University and other research institutions, Beijing haze generated first factor is automobile exhaust emissions, coal is the second. Ten thousand too analysis, the haze is a large number of fine particles into the air which, reduced visibility caused by a sharp decline in the kind of pollution harmful weather phenomenon. These pollutants into the air, a number of sources of pollutants are generally two types, one is directly discharged out, for example, from vehicle exhaust emissions, there is a small fine particulate stack emissions, factory emissions from the production process, including Another type is the gas; construction dust and the like. Such as volatile organic compounds, nitrogen oxides, ammonia, etc., through a series of chemical reactions and the formation of small particles, the formation of haze generally these two types, the first half of the discharge, the second half is generated. How 'right' to solve the haze? Ten thousand too, said, 'like a southern city, more developed cities may be more important than the second generation of little ones. For example, car ownership more than the city, the northern city of coal and more of these cities may once discharged little ones in a discharge inside, which is the main? there are generally a few pieces, the first piece of the industrial emissions of particulate matter, burn a lot of coal industry, power generation and coal plants in this part of the bulk, coal and general industrial emissions it will account for about half of the coal industry and together accounted for about half. so in order to cure the haze does not change the energy structure, pollutant treatment plant emissions is not impossible to improve. 'ten thousand too, said, 'now automobile exhaust emissions, such as hydrocarbons and other substances mixed to form a catalyst, a second-generation particle acts to accelerate, the car now this proportion generally MEP made nine cities analysis, this proportion accounted for 20% to 30%, so the vehicle exhaust governance must also be