【摘要】 安徽省马鞍山市城市大气污染物SO2主要来源于钢铁工业的矿石冶炼、煤炭焦化及工业锅炉等点源污染.通过对该市能源结构、历年工业用煤量、SO2排放总量、酸雨发生频率、硫酸盐化速率等数据资料分析,揭示出该市近年来城市大气SO2变化特征,指出大气SO2污染贡献主要来源于钢铁工业点源.通过钢铁企业不断加大技改力度,逐年减少SO2排放量,城市大气SO2质量浓度呈下降趋势,达到国家环境空气质量I级标准(GB3095-1996).因此,对于产业结构单一钢铁工业小城市,其大气污染主要来自于工业点源污染,点源是大气SO2污染控制、治理的重点.更多还原

【Abstract】 Air pollutant SO₂ of Maanshan mainly comes from point sources in field of iron & steel industry,including ore smelting,coking and industrial boiler.Based on the data,such as energy structure,previous industrial coal consumption,SO₂ emission,acid rain occurrence,sulfation rate,etc,features of changes of atmospheric SO₂ are disclosed,and main contribution to atmospheric SO₂ pollution is concluded as iron & steel industrial point sources.Through technical improvement in iron & steel companies,SO₂ emission has been gradually reduced,which has met Class I requirements of State Environment and Air Quality Standard（GB3095-1996）.It can be concluded that for small iron & steel industrial city with single industrial structure,the main atmospheric pollutants come from industrial point sources,which are crucial for control and treatment of atmospheric SO₂ pollution.更多还原