A steady increase in wildfire event severity and season length has led to greater potential for exposure to fine particulate matter associated with wildfire smoke. Research has found fine particulate matter to be correlated with a myriad of health ailments and thus effective strategies for controlling exposures are needed. In this study, a correction factor associated with wildfire-sourced fine particulate matter was established for a TSI SidePak AM520 by conducting sampling with a co-located MetOne BAM 1020. Portable air cleaner efficacy was assessed by simultaneously measuring PM2.5 mass concentrations in two identical offices with the inclusion of a portable air cleaner in one. The relationship between indoor and outdoor PM2.5 mass concentrations was assessed by comparing concentrations recorded in an office to those recorded at the nearest National Ambient Air Quality Standards monitoring station. Results revealed that a portable air cleaner reduced indoor fine particulate matter within an office by 73% and 92% during working and non-working hours, respectively, and that a strong significant correlation (ρ = .91, p = 0.00) existed between indoor and outdoor fine particulate matter mass concentration measurements. A direct relationship between indoor and outdoor PM2.5 mass concentrations was observed during this study, suggesting that elevated fine particulate matter concentrations due to wildfire smoke could be a concern in the indoor work environment; however the current study determined that the use of a portable air cleaner can substantially decrease fine particulate matter concentrations even in an active office setting.

中文翻译：

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使用市售的便携式空气滤清器在办公室环境中控制源自野火的PM2.5。

野火事件的严重性和季节长度的稳步增加，导致暴露于与野火烟雾相关的细颗粒物质的可能性更大。研究发现，细颗粒物与多种健康疾病相关，因此需要有效的控制暴露的策略。在这项研究中，通过在同一地点的MetOne BAM 1020进行采样，为TSI SidePak AM520确定了与野火源细颗粒物质相关的校正因子。通过同时测量两个样品中的PM2.5质量浓度来评估便携式空气净化器的功效。相同的办公室，其中包括便携式空气净化器。室内和室外PM2之间的关系。通过将办公室记录的浓度与最近的国家环境空气质量标准监测站记录的浓度相比较，评估了5种质量浓度。结果显示，便携式空气净化器在办公室和非工作时间分别将办公室内的室内细颗粒物减少了73％和92％，并且室内之间存在很强的显着相关性（ρ= .91，p = 0.00）和室外细颗粒物质量浓度测量。在这项研究中观察到室内和室外PM2.5质量浓度之间存在直接关系，这表明在野外工作环境中，由野火烟雾引起的细颗粒物浓度升高可能是一个问题。