汕头市澄海区春季大气细颗粒物来源解析及特征分析

Source Analysis and Characteristic Analysis of Atmospheric Fine Particulate Matter in Chenghai District of Shantou in Spring

2015年3月利用单颗粒气溶胶质谱仪(SPAMS)对汕头市澄海区的细颗粒物进行分析,获得结论如下:细颗粒物主要组分包括元素碳(EC)、有机碳(OC)、混合碳(ECOC)、富钾颗粒(K)、富钠钾颗粒(NAK)、重金属(HM)、矿物质(SIO 3)、高分子有机碳(HOC)以及左旋葡聚糖颗粒(LEV);细颗粒物整体源解析结果如下:首要污染源是机动车尾气源(占比32.3%),其次是燃煤源(占比22.8%),工业工艺源(占比12.3%),扬尘源(占比10%)。

In March 2015,single-particle aerosol mass spectrometer(SPAMS)was used to analyze the atmospheric fine particulate matter in Chenghai District of Shantou.The conclusions were as follows:atmospheric fine particulate matter identified 9 major components were:elemental carbon,organic carbon,mixed carbon and rich potassium,rich potassium sodium granule,heavy metals,minerals,polymer organic carbon and left-handed glucan particles.The overall source analysis results of atmospheric fine particulate matter were as follows:the primary source of pollution was motor vehicle exhaust(accounting for 32.3%),followed by coal burning(22.8%),industrial process(12.3%),and dust(10%).The contribution rate of other sources was below 10%.