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Technologies for reducing emissions in coal-fired power plants

Emissions from fossil fuel combustion, especially coal combustion, are major contributors to air pollution. Concentrations of suspended particles and sulfur dioxide (SO2) in the air of many cities in developing countries exceed World Health Organization standards. The effects of this pollution on human health can be devastating and in the most seriously affected countries the economic costs are estimated to be a significant percentage of GDP. In China, for instance, these costs were estimated at nearly 8 percent of GDP in 1995. Because of the health and economic costs, reducing air pollution from fossil fuels has become a major issue in many countries. Technical solutions include; switching from coal or fuel oil to natural gas in power generation, increased use of renewable energy sources, energy efficiency measures, coal washing, vehicle standards and transport fuel reformulation. In addition, programs that implement clean coal technology in power generation, can significantly and quickly reduce air pollution.