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中国科学院大学学报 ›› 2007, Vol. 24 ›› Issue (5): 657-660.DOI: 10.7523/j.issn.2095-6134.2007.5.017

• 论文 • 上一篇    下一篇

厦门市大气气溶胶化学特征研究

庄马展   

  1. 厦门市环境监测中心站,厦门,361004
  • 收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2007-09-15

Chemical characteristics of atmospheric aerosol in Xiamen

ZHANG Ma-Zhan   

  1. Xiamen Environmental Monitoring Central, 361004
  • Received:1900-01-01 Revised:1900-01-01 Published:2007-09-15

摘要: 于2004年~2005年采集厦门市三个代表性季节大气气溶胶PM10样品,利用X-射线荧光光谱、离子色谱、热光碳分析仪分析其主要化学成分。结果表明: 气溶胶的化学成分浓度呈现春季最高、冬季次之,夏季最低的季节变化特征。其中,二次离子SO42-、NO3- 与NH4+ 占到近40%;总碳TC浓度占21%;Al、Si 、Ca和Fe等地壳元素仅占总质量浓度的13%;海盐离子占7%,二次离子污染是影响厦门环境空气质量的主要因子。

关键词: 气溶胶, 化学元素, 水溶性离子, 总碳

Abstract: Atmospheric aerosol (PM10) samples were collected at Xiamen from December 2004 to July 2005, and analyzed by XRF、IC and Carbon Analyzer . Concentrations of aerosol species were commonly highest in spring, second highest in winter, and lowest in summer. Secondary ions including SO42-、NO3-, and NH4+ accounted for about 40% of PM10, and total carbon, crustal elements such as Al、Si、Ca and Fe , salt ions accounted for about 21%, 13%,, and 7%, respectively, of the PM2.5 mass. Secondary ion pollution is the major contributor to Xiamen air quality.

Key words: Atmospheric aerosol, Chemical element, Water soluble ion, Total carbon (TC)

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