China is a coal-based energy structure in the country, air pollution is smoke pollution, dust, sulfur dioxide (SO2), nitrogen oxides (NOX) is the main pollutant of the atmosphere.
In power,cast bronze metal smelting, glass and glass fiber, chemical industry, as coal, high sulfur heavy fuel oil and mineral raw materials in their sulfur, calcium fluoride, contains large amounts of sulfur dioxide gas, HF, and other harmful gases , causing serious pollution of the atmosphere, is the main cause of acid rain. Acid rain and sulfur dioxide pollution crops,bronze bushing forests and human health in serious economic losses, as a constraint to our economic and social development of the important factors. In order to curb the further development of pollution, January 21, 1998 State Department letter to State [1998] 5,dry bushing approved the National Environmental Protection Agency to develop the "acid rain control zones and sulfur dioxide pollution control zones by the program." The thermal power plant, for example, new construction, renovation greater than 1% sulfur coal-fired power plants, we must build desulphurization facilities.
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