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In recent years, increasing and significant emissions of SO2 is a major contributor to acid rain pollution, the reasons are manifold. Wherein, SO2 generated during the thermal power accounts for a large part. This paper selects China's total power generation, thermal power generation and emissions of SO2 and the current situation of China's energy structure and other related data for analysis, the relationship between power generation and fire power generation and SO2 emissions and primary energy will be discussed and concluded: from an environmental point of view, the status of China's power structure is unreasonable, the amount of thermal power generation accounted for the total share is too large, it is urgent need to improve this situation, the power status of the irrational structure of the problems to be solved. Introduction On the environment, in recent years acid rain, the greenhouse effect and destruction of the ozone layer are outstanding performance in air pollution, and acid rain is one of the most serious environmental problems, health hazards, corrosive materials, destruction of ecosystems, it cause huge economic losses and is one of the important factors of modern social and economic development. The main causes of acid rain is due to excessive emissions of SO2 in the air, SO2 emissions are the main factors affecting the development trend of acid rain pollution, which is still one of the key of air pollution prevention and control work of the coming period. According to relevant statistics, China's annual coal for power generation, accoutfor44.8% of the total consumption of coal industry, SO2 emissions in thermal power industry account for about half of the total SO2 emissions. Coal-based energy structure results in serious pollution of the atmosphere SO2 and cause tremendous pressure on the environment. Thus, thermal power industry caused a large number of SO2 emissions, so coal combustion can not be ignored. Therefore, this contemporary power structure of China is totally unreasonable, the proportion of the total thermal power generation accounted for too much, but according to China's current energy situation, the total coal accounted for 67.67% of China's total primary energy in 2013, it even accounted for 66.03% in 2014. From energy structure, the status of power structure is inevitable, so this regard, it is reasonable. About SO2 SO2 is a colorless, poisonous gas with a strong pungent odor, is one of the main pollutants in the atmosphere, many industrial processes generate SO2, SO2 in the atmosphere can cause respiratory inflammation and other diseases. SO2 is further oxidized in the catalyzed, and will directly generate sulfuric acid, have serious economic impact and damage on the global environment and human society. Acid rain have caused serious harm to soil, water, forests, buildings, monuments, etc. cultural landscape, not only caused great economic losses, but also endanger human survival and development. It is estimated that direct economic losses caused by metal corrosion accounts for 2% to 4% of national economic output in industrial countries every year. 6th International Conference on Management, Education, Information and Control (MEICI 2016) © 2016. The authors – Published by Atlantis Press 0132 Present Situation of SO2 Emissions SO2 Emissions and the Status of Power Structure. SO2 caused serious environmental pollution and huge economic losses. It is thermal power industry that use the most coal and cause the most SO2 emissions. In recent years, the data view, SO2 emissions from thermal power industry accounted for about half of the national total SO2 emissions. Table 1 Emissions of SO2 Year SO2 emissions (tons) Thermal Power Industry SO2 emissions (tons) Proportion 1997 1378.4 739.5 53.65% 1998 1239.6 696.8 56.21% 1999 1230.4 687.4 55.87% 200

Evaluation of the Status of the Power Structure Based on SO2 Emissions Responsibility