Air pollution caused by particulate matter (PM) has become a serious issue, and significant research has focused on managing large stationary emission sources, i.e., the primary sources of PM. Currently, the U.S. Environmental Protection Agency (EPA) Method 201A and ISO 23210 are predominantly employed to measure the PM emissions at large stationary sources. Method 201A is designated as a standard test method in Korea, but it is difficult to measure PM₁₀ and PM_2.5 simultaneously owing to the size of the full-set cyclone. In large stationary emission sources, the use of a serial connection of PM₁₀ and PM_2.5 cyclones is unsuitable for measurements at conventional sampling ports featuring diameters of approximately 100 mm. Therefore, in this study, PM₁₀ and PM_2.5 cyclones were developed to replace the cyclones currently used in Method 201A. The developed cyclones featured a cutoff diameter, which was confirmed by numerical and experimental analyses that were close to Method 201A. Moreover, there was an increase in the stiffness of collection efficiency. The hook adaptor, which is a key accessory used in Method 201A, was found to be applicable to the newly developed cyclones. This alternative method will help reduce the measurement time by simultaneously measuring TSP, PM₁₀, and PM_2.5 and eliminates the costs of installing or refurbishing additional sampling ports at existing large stationary sources.

由颗粒物（PM）引起的空气污染已经成为一个严重的问题，并且大量研究集中在管理大型固定排放源（即PM的主要来源）上。当前，美国环境保护局（EPA）方法201A和ISO 23210主要用于测量大型固定源的PM排放。方法201A在韩国被指定为标准测试方法，但是由于全套旋风分离器的尺寸，很难同时测量PM ₁₀和PM _2.5。在大型固定排放源中，使用PM ₁₀和PM _2.5的串行连接旋风分离器不适合在直径约100 mm的常规采样口进行测量。因此，在这项研究中，开发了PM ₁₀和PM _2.5旋风分离器来替代当前在方法201A中使用的旋风分离器。所开发的旋风分离器具有截留直径，该截留直径通过与方法201A接近的数值和实验分析得到证实。而且，收集效率的刚性增加了。已发现，挂钩适配器是方法201A中使用的关键附件，适用于新开发的旋风分离器。这种替代方法将通过同时测量TSP，PM ₁₀和PM _2.5来帮助减少测量时间 并消除了在现有大型固定源安装或翻新附加采样端口的成本。