You Bo, Zhou Wei, Li Junyao, Li Zhijie, Sun Yele
State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
Environ Int. 2022 Dec;170:107611. doi: 10.1016/j.envint.2022.107611. Epub 2022 Nov 1.
Gaseous organic compounds, mainly volatile organic compounds (VOCs), have become a wide concern in various indoor environments where we spend the majority of our daily time. The sources, compositions, variations, and sinks of indoor VOCs are extremely complex, and their potential impacts on human health are less understood. Owing to the deployment of the state-of-the-art real-time mass spectrometry during the last two decades, our understanding of the sources, dynamic changes and chemical transformations of VOCs indoors has been significantly improved. This review aims to summarize the key findings from mass spectrometry measurements in recent indoor studies including residence, classroom, office, sports center, etc. The sources and sinks, compositions and distributions of indoor VOCs, and the factors (e.g., human activities, air exchange rate, temperature and humidity) driving the changes in indoor VOCs are discussed. The physical and chemical processes of gas-particle partitioning and secondary oxidation processes of VOCs, and their impacts on human health are summarized. Finally, the recommendations for future research directions on indoor VOCs measurements and indoor chemistry are proposed.
气态有机化合物，主要是挥发性有机化合物（VOCs），已在我们大部分日常时间所处的各种室内环境中引起广泛关注。室内VOCs的来源、组成、变化和汇极其复杂，人们对其对人类健康的潜在影响了解较少。由于在过去二十年中部署了最先进的实时质谱技术，我们对室内VOCs的来源、动态变化和化学转化的理解有了显著提高。本综述旨在总结近期室内研究（包括住宅、教室、办公室、体育中心等）中质谱测量的关键发现。讨论了室内VOCs的来源和汇、组成和分布，以及驱动室内VOCs变化的因素（如人类活动、空气交换率、温度和湿度）。总结了VOCs的气粒分配物理和化学过程以及二次氧化过程及其对人类健康的影响。最后，提出了关于室内VOCs测量和室内化学未来研究方向的建议。
