桂林市细颗粒物典型排放源单颗粒质谱特征研究

被引:26
作者
杜娟 [1 ]
宋韶华 [1 ]
张志朋 [1 ]
易春盛 [1 ]
黄石磊 [1 ]
计晓梅 [1 ]
康兴快 [1 ]
李梅 [2 ]
黄渤 [3 ]
侯红霞 [3 ]
雷志鹏 [3 ]
机构
[1] 桂林市环境监测中心站
[2] 暨南大学大气环境安全与污染控制研究所
[3] 广州禾信分析仪器有限公司
关键词
单颗粒气溶胶质谱; 源解析; 典型排放源;
D O I
10.13671/j.hjkxxb.2015.0024
中图分类号
X513 [粒状污染物];
学科分类号
0706 ; 070602 ;
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0.2~1.25μm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.
引用
收藏
页码:1556 / 1562
页数:7
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