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Characterizing the Indoor-Outdoor Relationship of Fine Particulate Matter in Non-Heating Season for Urban Residences in Beijing

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  • Lihui Huang
  • Zhongnan Pu
  • Mu Li
  • Jan Sundell

Abstract

Objective: Ambient fine particulate matter (PM2.5) pollution is currently a major public health concern in Chinese urban areas. However, PM2.5 exposure primarily occurs indoors. Given such, we conducted this study to characterize the indoor-outdoor relationship of PM2.5 mass concentrations for urban residences in Beijing. Methods: In this study, 24-h real-time indoor and ambient PM2.5 mass concentrations were concurrently collected for 41 urban residences in the non-heating season. The diurnal variation of pollutant concentrations was characterized. Pearson correlation analysis was used to examine the correlation between indoor and ambient PM2.5 mass concentrations. Regression analysis with ordinary least square was employed to characterize the influences of a variety of factors on PM2.5 mass concentration. Results: Hourly ambient PM2.5 mass concentrations were 3–280 μg/m3 with a median of 58 μg/m3, and hourly indoor counterpart were 4–193 μg/m3 with a median of 34 μg/m3. The median indoor/ambient ratio of PM2.5 mass concentration was 0.62. The diurnal variation of residential indoor and ambient PM2.5 mass concentrations tracked with each other well. Strong correlation was found between indoor and ambient PM2.5 mass concentrations on the community basis (coefficients: r≥0.90, p

Suggested Citation

  • Lihui Huang & Zhongnan Pu & Mu Li & Jan Sundell, 2015. "Characterizing the Indoor-Outdoor Relationship of Fine Particulate Matter in Non-Heating Season for Urban Residences in Beijing," PLOS ONE, Public Library of Science, vol. 10(9), pages 1-17, September.
    • Handle: RePEc:plo:pone00:0138559
    DOI: 10.1371/journal.pone.0138559
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    Cited by:

    1. Mike Z. He & Xiange Zeng & Kaiyue Zhang & Patrick L. Kinney, 2017. "Fine Particulate Matter Concentrations in Urban Chinese Cities, 2005–2016: A Systematic Review," IJERPH, MDPI, vol. 14(2), pages 1-14, February.
    2. Yibing Yang & Liu Liu & Chunyu Xu & Na Li & Zhe Liu & Qin Wang & Dongqun Xu, 2018. "Source Apportionment and Influencing Factor Analysis of Residential Indoor PM 2.5 in Beijing," IJERPH, MDPI, vol. 15(4), pages 1-19, April.
    3. Christopher Johnes & Richard A. Sharpe & Tamaryn Menneer & Timothy Taylor & Penelope Nestel, 2023. "Using Sensor Data to Identify Factors Affecting Internal Air Quality within 279 Lower Income Households in Cornwall, South West of England," IJERPH, MDPI, vol. 20(2), pages 1-16, January.
    4. Lijun Zhang & Changyi Guo & Xiaodong Jia & Huihui Xu & Meizhu Pan & Dong Xu & Xianbiao Shen & Jianghua Zhang & Jianguo Tan & Hailei Qian & Chunyang Dong & Yewen Shi & Xiaodan Zhou & Chen Wu, 2018. "Personal exposure measurements of school-children to fine particulate matter (PM2.5) in winter of 2013, Shanghai, China," PLOS ONE, Public Library of Science, vol. 13(4), pages 1-16, April.
    5. Haneen Khreis & Mark J. Nieuwenhuijsen, 2017. "Traffic-Related Air Pollution and Childhood Asthma: Recent Advances and Remaining Gaps in the Exposure Assessment Methods," IJERPH, MDPI, vol. 14(3), pages 1-19, March.
    6. Ho-Hyun Kim & Min-Jung Kwak & Kwang-Jin Kim & Yoon-Kyung Gwak & Jeong-Hun Lee & Ho-Hyeong Yang, 2020. "Evaluation of IAQ Management Using an IoT-Based Indoor Garden," IJERPH, MDPI, vol. 17(6), pages 1-14, March.

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