山西省燃煤电厂二氧化硫减排对硫沉降的影响分析

采用ATMOS长距离传输模型，对2006—2007年山西省燃煤电厂通过关停小机组及增设脱硫设施所减少的SO₂排放量进行数值模拟，并基于地理信息系统，分析了整个模拟范围内的总S沉降和干/湿S沉降分布特点，探讨了关停小机组及增设脱硫设施减少SO₂排放量的效果。结果表明：2006—2007年间山西省燃煤电厂装机容量增加，但SO₂排放及其导致的S沉降量持续下降，表明二氧化硫减排效果非常明显。

Effects of SO_2 emission reduction on sulfur deposition at coal-fired power plants in Shanxi province

The amount of SO₂ emission reduction closing down small thermal power generating units and increasing sulfur deposition establishment at the coal-fired power plants from 2006 to 2007 in Shanxi province were simulated with ATMOS long distance transmission model. The distributions of the total sulfur deposition and dry/wet sulfur deposition in study areas were analyzed based on the geographic information system (GIS). The effects of SO₂ emission reduction were discussed. The results show that the capacity of thermal power plant increases from 2006 to 2007. However, SO₂ emission and sulfur deposition decreases persistently. It indicates that the effect of SO₂ emission reduction is better.