School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau, Malaysia.
Microbial Ecology and Bacteriology Laboratory, School of Biological Sciences, Universiti Sains Malaysia, Minden 11800, Pulau, Malaysia.
Int J Environ Res Public Health. 2021 Aug 2;18(15):8192. doi: 10.3390/ijerph18158192.
Rice straw is commonly burned openly after harvesting in Malaysia and many other Asian countries where rice is the main crop. This operation emits a significant amount of air pollution, which can have severe consequences for indoor air quality, public health, and climate change. Therefore, this study focuses on determining the compositions of trace elements and the morphological properties of fine particles. Furthermore, the species of bacteria found in bioaerosol from rice burning activities were discovered in this study. For morphological observation of fine particles, FESEM-EDX was used in this study. Two main categories of particles were found, which were natural particles and anthropogenic particles. The zinc element was found during the morphological observation and was assumed to come from the fertilizer used by the farmers. ICP-OES identifies the concentration of trace elements in the fine particle samples. A cultured method was used in this study by using nutrient agar. From this study, several bacteria were identified: and . This study is important, especially for human health, and further research on the biological composition of aerosols should be conducted to understand the effect of microorganisms on human health.
在马来西亚和许多其他亚洲国家，水稻是主要作物，水稻秸秆在收获后通常露天焚烧。这种作业会排放大量的空气污染，对室内空气质量、公众健康和气候变化都有严重的影响。因此，本研究专注于确定痕量元素的组成和细颗粒的形态特性。此外，本研究还发现了水稻燃烧活动产生的生物气溶胶中的细菌种类。为了对细颗粒进行形态观察，本研究使用了 FESEM-EDX。发现了两种主要的颗粒，即自然颗粒和人为颗粒。在形态观察过程中发现了锌元素，推测它来自农民使用的肥料。ICP-OES 确定了细颗粒样品中痕量元素的浓度。本研究采用了营养琼脂的培养方法。通过本研究，鉴定出了几种细菌： 和 。本研究很重要，特别是对人类健康而言，应该进一步研究气溶胶的生物成分，以了解微生物对人类健康的影响。
