泰安市空气污染物时空变化趋势及污染防治对策

Analysis of Temporal-spatial Dynamic Variation Trend of Ambient Air Quality in Tai'an City and Pollution Control Measures

以2009—2015年泰安市空气污染物的监测数据为依据,对其平均浓度时空变化特征进行分析.结果表明:从年际变化看,2009—2015年泰安市SO_2、NO_2、PM_(10)浓度均呈下降趋势,PM_(10)浓度在2013年明显上升后平稳下降,PM_(2.5)浓度自2013年有观测记录以来就一直呈下降趋势;各污染物月变化曲线呈U字形,且季节变化明显,污染程度由高到低顺序为冬季、秋季、春季、夏季;空间变化显示:SO_2、NO_2、PM_(10)、PM_(2.5)具有一定的空间差异,农业大学和电力学校污染物浓度较高,人口学校和交通技校污染物浓度较低;通过科学的管理和技术的改进,近年来泰安市空气中污染物浓度呈明显下降趋势,并根据上述研究结果,为空气污染的防治提供参考依据.

Based on the monitoring data of air pollutants in Tai'an from 2009 to 2015,the spatial and temporal variation characteristics of average concentration were analyzed.The results showed that:in terms of interannual variation,the concentrations of SO_2,NO_2 and PM_(10) in Tai'an had been declining from 2009 to 2015.The concentration of PM_(10) steadily went down after significantly increased in 2013 and the concentration of PM_(2.5) had been declining since being recorded after observation in 2013;the curves of monthly changes of all pollutants were U-shaped,which changed dramatically with season,with winter being the most polluted,followed by autumn,spring and summer in an order of pollution level;spatial variation displayed that there were spatial differences among SO_2,NO_2,PM_(10) and PM_(2.5).The concentrations of pollutants of Shandong Agricultural University and Electric Power College were higher,while the concentrations of pollutants of Population College and Traffic Technical School were lower;through scientific management and improved technology,the concentration of pollutants in the air of Tai'an has decreased dramatically in recent years.Based on these studies,countermeasures of pollution control have been proposed.