丹东市采暖季二氧化硫污染分析

Analysis Sulfur dioxide Pollution in the Heating Season in Dandong City

丹东市现有4个环境空气自动监测站,位于市区的东部丹东财专、南部轴承厂、北部手表公司和市中心实验小学,实行每天24小时连续自动监测。通过对近几年环境空气监测数据时间变化和空间分布的分析,可知采暖季二氧化硫在市中心监测点实验小学的测定值比其他点位都大得许多,比其他季节也大得许多,二氧化硫主要来源于市区内采暖季燃煤锅炉,这些燃煤锅炉采用的湿式脱硫装置管理难度大,操作不方便,运转费用大,脱硫效率低,遇到不利于大气扩散的天气时,市区内的二氧化硫浓度就会增高,造成测定值超标,形成二氧化硫污染。

Dandong city has 4 environmental air automatic monitoring stations, located in the urban area of eastern Dandong Financial College, South Bearing Factory, northern Watch Company and Experimental Primary School in the center of the city. For every 24 hours of continuous automatic monitoring. In last few years through be opposite environmental air monitoring data in time and spatial distribution anal- ysis, the heating season in downtown Experimental Primary School of sulfur dioxide monitoring determination value than other sites are more, also more than other seasons, sulfur dioxide comes mainly from the urban coal -fired boiler heating season, these coal -fired boiler using wet desulfurization device management difficulty, inconvenient operation, operation cost, low efficiency of desulfurization, encounter against atmospheric diffusion weather, urban concentrations of sulfur dioxide will be increased, resulting in measured values exceed the standard, to form sulfur dioxide pollution.