太原市PM_(10)、PM_(2.5)、SO_2和CO冬夏两季污染特征研究

Study on PM_(10),PM_(2.5),SO_2 and CO Pollution Characteristics in Winter and Summer in Taiyuan

通过对太原市2013年冬季和2014年夏季PM10、PM2.5、SO2和CO 24小时平均浓度实时数据的整理和分析,结果表明,冬季污染较夏季严重。冬季为采暖期,颗粒物、SO2和CO相互之间呈现较强的相关关系,污染物来源有着较高的同源性,区域采暖燃煤是区域大气污染的主导性影响因素;夏季为非采暖期,颗粒物、SO2和CO相互之间呈现较弱的相关关系,其污染来源有着较低的同源性,燃煤污染不是区域的主要污染因素,颗粒物、SO2和CO来源于不同行业的工业污染,同时城市机动车尾气也是PM2.5和CO的污染影响因素。

By collation and analysis of 24-hourly mean concentration of PM10、PM2. 5、SO2and CO real-time data in Taiyuan 2013 winter and 2014 summer,the results show severe pollution in winter than in summer. Winter is heating period,particulate matter、SO2and CO show a strong correlation mutually,pollutants source has a high homology,coal combustion for district heating is the dominant factor affecting regional air pollution. Summer is non-heating period,particulate matter、SO2and CO show a weak correlation mutually,pollutants source has a low homology,coal-fired pollution is not the major factor for district pollution,particulate matter,SO2 and CO come from industrial pollution in different sectors,urban vehicle exhaust pollution are also factors of PM2. 5and CO at the same time.