In this study, as the first step in mitigating contamination by PM_0.1, particles with diameters less than 0.1 μm, the current air pollution situation in Indonesia was investigated with respect to particulate matter (PM), especially regarding the status and characteristics of PM_0.1. Air sampling in different size ranges down to PM_0.1 was conducted at roadsides, at a school adjacent to a road, an industrial area and an area near a volcano in North Sumatera Province. Analyses were conducted for carbonous components (OC, EC, TC, WSOC and WISOC), and ions including oxalate in the PM_0.1 fraction. We identified PM_2.5 and PM₁₀ mass concentrations in the area of the city that exceeded WHO guidelines. From the chemical components in the PM_0.1 fraction, we found that WISOC, NO₃⁻ and soot-EC were the most common components, suggesting that local traffic is a contributor and another group consisting of K⁺, SO₄²⁻ and WSOC suggesting the occurrence of biomass burning related to local industrial and rural sources.

在这项研究中，作为减轻PM _0.1（直径小于_0.1μm的颗粒）污染的第一步，就颗粒物（PM），特别是关于PM _0.1的状态和特性，研究了印度尼西亚目前的空气污染状况。。在北苏门答腊省的路边，与道路相邻的学校，工业区和靠近火山的区域进行了大小不等的空气采样，直到PM _0.1。分析了含碳成分（OC，EC，TC，WSOC和WISOC）以及PM _0.1馏分中的含草酸盐的离子。我们确定了PM _2.5和PM ₁₀该城市区域内的质量浓度超过了WHO准则。从在PM的化学成分_0.1分数，我们发现，WISOC，NO ₃ ^-和烟灰-EC是最常见的部件，这表明本地业务是一个贡献者和自由K另一组⁺，SO ₄ ^2-和WSOC提示生物质燃烧的发生与当地的工业和农村资源有关。