Air quality in indoor environments can have significant impacts on people's health, comfort, and productivity. Particulate matter (PM; also referred to as aerosols) is an important type of air pollutant, and exposure to outdoor PM has been associated with a variety of diseases. In addition, there is increasing recognition and concern of airborne transmission of viruses, including severe acute respiratory syndrome corona-virus 2 (SARS-CoV-2), especially in indoor environments. Despite its importance, indoor PM data during the COVID-19 pandemic are scarce. In this work, we measured and compared particle number and mass concentrations in aircraft cabins during commercial flights with various indoor environments in Atlanta, GA, during July 2020, including retail stores, grocery stores, restaurants, offices, transportation, and homes. Restaurants had the highest particle number and mass concentrations, dominated by cooking emissions, while in-flight aircraft cabins had the lowest observed concentrations out of all surveyed spaces.

中文翻译：

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商业航班中的飞行中颗粒物浓度可能低于其他室内环境

室内环境中的空气质量会对人们的健康、舒适度和生产力产生重大影响。颗粒物（PM；也称为气溶胶）是一种重要的空气污染物，暴露于室外 PM 与多种疾病有关。此外，人们越来越认识到和关注病毒的空气传播，包括严重急性呼吸系统综合症冠状病毒 2 (SARS-CoV-2)，尤其是在室内环境中。尽管很重要，但 COVID-19 大流行期间的室内 PM 数据很少。在这项工作中，我们测量并比较了 2020 年 7 月在佐治亚州亚特兰大的各种室内环境下商业飞行期间飞机机舱中的颗粒数量和质量浓度，包括零售店、杂货店、餐厅、办公室、交通工具和家庭。