Indoor particulate matter (PM) concentrations may be high due to indoor PM generation as well as PM introduced from the outdoors in residential buildings. In particular, as building airtight performance has been strengthened to reduce energy consumption, the indoor-generated PM has greatly influenced a person’s overall PM exposure. The indoor activities of residents may generate and resuspend PM, which in turn increases the indoor PM concentration. This study aims to analyze the characteristics of indoor PM generation by activities in a residential building and the removal effect of the ventilation methods. Field measurements were accomplished for indoor PM generation activities in real conditions, such as vacuum cleaning, cooking (fish and pork), air freshener spraying, and scented candle burning in a residential building. As a result, the PM concentration was the highest for broiling fish, with a concentration of 15.714 mg/m³ for PM₁₀ and 13.679 mg/m³ for PM_2.5. The decreasing order of the peak concentration for indoor activities was cooking, burning scented candles, vacuuming, and spraying air freshener. Additionally, the residual PM concentration exceeded the standard upper limit even 30 min after most of the PM generation activities ended. Especially, in the cooking activity, with the highest PM generation, PM could not be removed properly even when the range hood was operated. This is because the static pressure loss of the range hood in an air-tightened house and additional air supply or window opening can improve the PM removal performance of the range hood.

室内颗粒物 (PM) 浓度可能很高，原因是室内 PM 的产生以及住宅建筑中从室外引入的 PM。特别是随着建筑密闭性能的加强，降低能耗，室内产生的PM对人的整体PM暴露影响很大。居民的室内活动可能会产生和悬浮 PM，从而增加室内 PM 浓度。本研究旨在分析住宅建筑活动产生的室内PM2.5的特征以及通风方法的去除效果。现场测量是针对真实条件下的室内 PM 生成活动完成的，例如真空清洁、烹饪（鱼和猪肉）、空气清新剂喷洒以及在住宅楼内燃烧香薰蜡烛。因此，³为PM ₁₀和13.679毫克/米³为PM _2.5。室内活动的峰值浓度递减顺序是做饭、燃烧香薰蜡烛、吸尘和喷洒空气清新剂。此外，即使在大部分 PM 生成活动结束后 30 分钟，残留 PM 浓度仍超过标准上限。尤其是在烹饪活动中，PM 产生量最高，即使操作抽油烟机也无法正确去除 PM。这是因为抽油烟机在密闭房屋中的静压损失和额外的送风或开窗可以提高抽油烟机的PM去除性能。