Radzi bin Abas M, Oros Daniel R, Simoneit B R T
Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Chemosphere. 2004 May;55(8):1089-95. doi: 10.1016/j.chemosphere.2004.02.002.
The haze episodes that occurred in Malaysia in September-October 1991, August-October 1994 and September-October 1997 have been attributed to suspended smoke particulate matter from biomass burning in southern Sumatra and Kalimantan, Indonesia. In the present study, polar organic compounds in aerosol particulate matter from Malaysia are converted to their trimethylsilyl derivatives and analyzed by gas chromatography-mass spectrometry in order to better assess the contribution of the biomass burning component during the haze episodes. On the basis of this analysis, levoglucosan was found to be the most abundant organic compound detected in almost all samples. The monosaccharides, alpha- and beta-mannose, the lignin breakdown products, vanillic and syringic acids and the minor steroids, cholesterol and beta-sitosterol were also present in some samples. The presence of the tracers from smoke overwhelmed the typical signatures of emissions from traffic and other anthropogenic activities in the urban areas.
1991年9月至10月、1994年8月至10月以及1997年9月至10月在马来西亚发生的霾灾事件，被认为是由印度尼西亚苏门答腊岛南部和加里曼丹地区生物质燃烧产生的悬浮烟雾颗粒物所致。在本研究中，马来西亚气溶胶颗粒物中的极性有机化合物被转化为其三甲基硅烷基衍生物，并通过气相色谱 - 质谱联用仪进行分析，以便更好地评估霾灾事件期间生物质燃烧成分的贡献。基于该分析，发现左旋葡聚糖是几乎所有样品中检测到的最丰富的有机化合物。一些样品中还存在单糖、α - 和β - 甘露糖、木质素分解产物、香草酸和丁香酸以及少量甾体化合物胆固醇和β - 谷甾醇。烟雾示踪剂的存在掩盖了城市地区交通和其他人为活动排放的典型特征。
