镇江市典型大气污染物单颗粒质谱分析研究

The Mass Spectrum Analysis and Research on Single Particle of Typical Air Pollutants in City of Zhenjiang

本文通过大气细颗粒物实时质谱直接测量法对镇江市区典型大气污染物进行在线分析,获取了高时间分辨的污染物成分分析结果,最终确定了元素碳(EC)、混合碳(ECOC)、有机碳(OC)、左旋葡聚糖颗粒(LEV)、富钾颗粒(K)、重金属(HM)、矿物质(KWZ)7类颗粒物。对几种典型污染源进行了监测,列出了对应排放源指纹特征谱。

In this paper,the on-line analysis of typical atmospheric pollutants in Zhenjiang city was carried out by the method of real-time mass spectrometry of fine particulate matter,and the results of high time-resolution analysis of pollutant components were obtained.Finally,composition of seven kinds of particulate matter was determined,respectively are elemental carbon(EC),mixed carbon(ECOC),organic carbon(OC),levoglucosan granules(LEV),potassium-rich granules(K),heavy metals(HM)and minerals(KWZ).Several typical pollution sources were monitored and their fingerprints were listed.