研究论文
杜娟,宋韶华,张志朋,易春盛,黄石磊,计晓梅,康兴快,李梅,黄渤,侯红霞,雷志鹏.桂林市细颗粒物典型排放源单颗粒质谱特征研究[J].环境科学学报,2015,35(5):1556-1562
桂林市细颗粒物典型排放源单颗粒质谱特征研究
- Single particle characteristics of fine particulate matter emitted from typical sources of Guilin
- 基金项目：桂林市环境保护专项资金项目(No.ZRZ201403)
- 作者
- 单位
- 杜娟
- 桂林市环境监测中心站, 桂林 541002
- 宋韶华
- 桂林市环境监测中心站, 桂林 541002
- 张志朋
- 桂林市环境监测中心站, 桂林 541002
- 易春盛
- 桂林市环境监测中心站, 桂林 541002
- 黄石磊
- 桂林市环境监测中心站, 桂林 541002
- 计晓梅
- 桂林市环境监测中心站, 桂林 541002
- 康兴快
- 桂林市环境监测中心站, 桂林 541002
- 李梅
- 暨南大学大气环境安全与污染控制研究所, 广州 510632
- 黄渤
- 广州禾信分析仪器有限公司, 广州 510530
- 侯红霞
- 广州禾信分析仪器有限公司, 广州 510530
- 雷志鹏
- 广州禾信分析仪器有限公司, 广州 510530
- 摘要：利用单颗粒气溶胶飞行时间质谱仪(SPAMS)对桂林市四类PM2.5典型污染源排放颗粒物的粒径和化学成分进行分析,结果表明:除扬尘颗粒外,其他几类源排放颗粒物的粒径集中在0.2~1.25 μm之间.几类污染源排放颗粒物的化学成分有明显区别,柴油车以EC颗粒为主,占总电离颗粒的74.7%,汽油车以富钙颗粒为主,占总电离颗粒的86.7%,燃煤排放以富铁、富铬颗粒为主,二者合计占了总电离颗粒的59.9%,生物质燃烧以含左旋葡聚糖颗粒为主,占总电离颗粒的44.4%,扬尘颗粒以富铝颗粒为主,占总电离颗粒的69.4%.这些特征为大气颗粒物的源解析提供了可能.
- Abstract：Single Particle Aerosol Mass Spectrometer (SPAMS) was used to analyze the size distribution and chemical composition of fine particles emitted from four typical sources in Guilin. The results showed that the size of most particles except those from road dust ranged from 0.2μm to 1.25μm. Chemical components of the four sources measured differed from each other distinctly. Particles from diesel vehicles were dominated by EC cluster which accounted for 74.7% of the total ionized particles, while particles from gasoline vehicles were mostly Calcium-rich which accounted for 86.7% of the total ionized particles. Particles from coal combustion were dominated by Fe and Cr clusters, and they accounted for 59.9% of the total ionized particles. Particles containing levoglucosan from biomass burning accounted for 44.4% of the total ionized particles, and road dust particles were mostly aluminum-rich particles, accounting for 69.4% of the total ionized particles. These unique characteristics enable further source apportionment of ambient fine particles.
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