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Characterization of Urban Subway Microenvironment Exposure—A Case of Nanjing in China

Author

Listed:
  • Peng Mao

    (Department of Construction Management, College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Jie Li

    (Department of Construction Management and Real Estate, School of Civil Engineering, Shenzhen University, Shenzhen 518000, China)

  • Lilin Xiong

    (Department of Environmental Health, Nanjing Municipal Center for Disease Control and Prevention, Nanjing 210037, China)

  • Rubing Wang

    (Department of Construction Management, College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Xiang Wang

    (Department of Construction Management, College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Yongtao Tan

    (Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China)

  • Hongyang Li

    (Department of Construction Management, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China)

Abstract

Environmental quality in public rail transit has recently raised great concern, with more attention paid to underground subway microenvironment. This research aimed to provide guidance for healthy urban subway microenvironments (sub-MEs) according to comprehensive micro-environmental categories, including thermal environment, air quality, lighting environment, and acoustic environment from both practical and regulation perspectives. Field sampling experiments were conducted in Nanjing Metro Line X (NMLX). Descriptive analysis, correlation analysis and one-way analysis of variance were used to investigate the status quo of urban sub-MEs. A paired samples t-test was then performed to compare among subway station halls, platforms, and in-cabin trains based on integrated sub-MEs. Results show that relative humidity, air velocity, respirable particulate matter (PM 10 ) concentration, and illuminance dissatisfy the requirements in relevant national standards. Significant difference was observed in lighting environment between station hall and platform. It was detected platforms are warmer and more polluted than train cabins. Additionally, subway trains generate main noise on platform which is much louder when leaving than arriving. Protective strategies for sub-ME improvement as well as principles for updating standards were proposed from a proactive point of view. The findings are beneficial for moving towards healthy urban sub-MEs and more sustainable operation of subway systems.

Suggested Citation

  • Peng Mao & Jie Li & Lilin Xiong & Rubing Wang & Xiang Wang & Yongtao Tan & Hongyang Li, 2019. "Characterization of Urban Subway Microenvironment Exposure—A Case of Nanjing in China," IJERPH, MDPI, vol. 16(4), pages 1-17, February.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:4:p:625-:d:207736
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    References listed on IDEAS

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    1. Hui Xu & Liudan Jiao & Shulin Chen & Milan Deng & Ningxin Shen, 2018. "An Innovative Approach to Determining High-Risk Nodes in a Complex Urban Rail Transit Station: A Perspective of Promoting Urban Sustainability," Sustainability, MDPI, vol. 10(7), pages 1-17, July.
    2. Ying-Yi Chen & Fung-Chang Sung & Mei-Lien Chen & I-Fang Mao & Chung-Yen Lu, 2016. "Indoor Air Quality in the Metro System in North Taiwan," IJERPH, MDPI, vol. 13(12), pages 1-10, December.
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    Cited by:

    1. Liping Pang & Chenyuan Yang & Xiaodong Cao & Qing Tian & Bo Li, 2020. "Experimental Investigation of Air Quality in a Subway Station with Fully Enclosed Platform Screen Doors," IJERPH, MDPI, vol. 17(14), pages 1-15, July.
    2. Yalcin Yildirim & Diane Jones Allen & Amy Albright, 2019. "The Relationship between Sound and Amenities of Transit-Oriented Developments," IJERPH, MDPI, vol. 16(13), pages 1-19, July.
    3. Liyang Liu & Hui Liu & Yiming Ma, 2022. "Surrogate-Assisted Fine Particulate Matter Exposure Assessment in an Underground Subway Station," IJERPH, MDPI, vol. 19(4), pages 1-25, February.
    4. Yueming Wen & Jiawei Leng & Xiaobing Shen & Gang Han & Lijun Sun & Fei Yu, 2020. "Environmental and Health Effects of Ventilation in Subway Stations: A Literature Review," IJERPH, MDPI, vol. 17(3), pages 1-37, February.

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