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Ventilation and Air Quality in Student Dormitories in China: A Case Study during Summer in Nanjing

Author

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  • Zhe Yang

    (School of Architecture and Urban Planning, Nanjing University, 22 Hankou Road, Nanjing 210093, China)

  • Jialei Shen

    (School of Architecture and Urban Planning, Nanjing University, 22 Hankou Road, Nanjing 210093, China)

  • Zhi Gao

    (School of Architecture and Urban Planning, Nanjing University, 22 Hankou Road, Nanjing 210093, China)

Abstract

The Air quality in student dormitories can have a major impact on the health of millions of students in China. This study aims to investigate the ventilation and air quality in student dormitories. Questionnaire survey was conducted in eight dormitory buildings and field measurements were conducted in one dormitory during the summer in Nanjing. The survey result reveals that most students thought the indoor and outdoor air quality was neutral and the correlation between indoor and outdoor perceived air quality is statistically significant. There are few indoor PM2.5 and ozone sources in dormitories and natural ventilation is the most common form of ventilation. However, there is no statistically significant correlation between window opening behaviors and the perceptions of indoor and outdoor air quality. The field measurement result shows the measured I/O ratios of PM2.5 and ozone over 37 days are in the range of 0.42–0.79 and 0.21–1.00, respectively. The I/O ratios for PM2.5 and ozone are 0.49 ± 0.05 and 0.26 ± 0.05 in the case of the window being closed, and the I/O ratios for PM2.5 and ozone are 0.65 ± 0.08 and 0.50 ± 0.15 in the case of the window being open. The outdoor and indoor ozone concentrations show pronounced diurnal periodic variations, while the PM2.5 concentrations do not. Finally, recommended open/close window strategies are discussed to reduce indoor pollutant levels. Understanding the indoor/outdoor PM2.5 and ozone concentrations in different window patterns can be a guidance to preventing high indoor PM2.5 and ozone exposure in student dormitories.

Suggested Citation

  • Zhe Yang & Jialei Shen & Zhi Gao, 2018. "Ventilation and Air Quality in Student Dormitories in China: A Case Study during Summer in Nanjing," IJERPH, MDPI, vol. 15(7), pages 1-17, June.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:7:p:1328-:d:154224
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    References listed on IDEAS

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    1. Marie-Cecile G. Chalbot & Tamara A. Jones & Ilias G. Kavouras, 2014. "Trends of Non-Accidental, Cardiovascular, Stroke and Lung Cancer Mortality in Arkansas Are Associated with Ambient PM 2.5 Reductions," IJERPH, MDPI, vol. 11(7), pages 1-14, July.
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    Cited by:

    1. Rengin Aslanoğlu & Begüm Ulusoy & Jan K. Kazak, 2024. "Air Quality of Private Interiors during the COVID-19 Pandemic: A Case Study of Dormitory Interiors as Shared Spaces," Sustainability, MDPI, vol. 16(2), pages 1-13, January.
    2. Bo Hong & Hongqiao Qin & Runsheng Jiang & Min Xu & Jiaqi Niu, 2018. "How Outdoor Trees Affect Indoor Particulate Matter Dispersion: CFD Simulations in a Naturally Ventilated Auditorium," IJERPH, MDPI, vol. 15(12), pages 1-21, December.
    3. Murtaza Mohammadi & John Calautit, 2022. "Quantifying the Transmission of Outdoor Pollutants into the Indoor Environment and Vice Versa—Review of Influencing Factors, Methods, Challenges and Future Direction," Sustainability, MDPI, vol. 14(17), pages 1-27, August.
    4. Dan Miao & Xiaodong Cao & Wenxin Zuo, 2022. "Associations of Indoor Environmental Quality Parameters with Students’ Perceptions in Undergraduate Dormitories: A Field Study in Beijing during a Transition Season," IJERPH, MDPI, vol. 19(24), pages 1-17, December.

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