Haze episodes have become a major concern in Malaysia over the past few decades and have an increasingly important impact on the country each and every year. During haze episodes from biomass burning in Southeast Asia, particularly from Sumatra, Indonesia, particulate matter PM_2.5 is found to be one of the dangerous sources of airborne pollution and is known to seriously affect human health. This study determines the composition of carbohydrates (as levoglucosan), surfactants, major elements, and anions in PM_2.5 during a 2013 haze episode. PM_2.5 samples were collected from Universiti Kebangsaan Malaysia, Bangi, using a high volume sampler during a seven-day monitoring campaign during the peak of that year’s haze episode. PM_2.5 concentrations ranged between 14.52 and 160.93 μg/m³, exceeding the 2005 WHO air quality guidelines for PM_2.5 (25 μg/m³ for 24-h mean). The patterns for levoglucosan, surfactants, major elements, and anionic compositions were proportional to the PM_2.5 concentrations. Changes in PM_2.5 observed on days 3 and 4 were influenced by a combination of meteorological factors, which substantiate the theory that such factors play a pivotal role in haze episodes.

在过去的几十年中，雾霾发作已成为马来西亚的一个主要问题，并且每年对该国的影响越来越大。在东南亚（尤其是印度尼西亚苏门答腊岛）因生物质燃烧而引起的霾天气中，颗粒物PM _2.5被发现是空气传播污染的危险来源之一，已知会严重影响人类健康。这项研究确定了2013年霾天气中PM _2.5中碳水化合物（如左旋葡聚糖），表面活性剂，主要元素和阴离子的组成。在那年阴霾高峰期间，在为期7天的监测活动中，使用了大容量采样器从马来西亚班吉的Kebangsaan马来西亚大学收集了PM _2.5样本。下午_2.5浓度范围在14.52至160.93μg/ m ^3之间，超过了2005年WHO的PM _2.5空气质量指南（24小时平均值为25μg/ m ³）。左旋葡聚糖，表面活性剂，主要元素和阴离子组成的模式与PM _2.5浓度成正比。在第3天和第4天观察到的PM _2.5的变化受多种气象因素的影响，证实了这种因素在霾事件中起关键作用的理论。