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Air Pollution Characteristics during the 2022 Beijing Winter Olympics

Author

Listed:
  • Fangjie Chu

    (School of Resources, Environment & Tourism, Capital Normal University, Beijing 100048, China)

  • Chengao Gong

    (School of Civil and Architectural Engineering, Shandong University of Technology, Zibo 255000, China)

  • Shuang Sun

    (Beijing Municipal Ecological and Environmental Monitoring Center, Beijing 100048, China)

  • Lingjun Li

    (Beijing Municipal Ecological and Environmental Monitoring Center, Beijing 100048, China)

  • Xingchuan Yang

    (School of Resources, Environment & Tourism, Capital Normal University, Beijing 100048, China)

  • Wenji Zhao

    (School of Resources, Environment & Tourism, Capital Normal University, Beijing 100048, China)

Abstract

Using air pollution monitoring data from 31 January to 31 March 2022, we evaluated air quality trends in Beijing and Zhangjiakou before and after the 2022 Winter Olympics and compared them with the conditions during the same period in 2021. The objective was to define the air quality during the 2022 Winter Olympics. The results indicated that: (1) the average concentrations of PM 2.5 , PM 10 , NO 2 , CO, and SO 2 in Zhangjiakou during the 2022 Winter Olympics were 28.15, 29.16, 34.96, 9.06, and 16.41%, respectively, lower than those before the 2022 Winter Olympics; (2) the five pollutant concentrations in Beijing showed the following pattern: during the 2022 Winter Olympics (DWO) < before the 2022 Winter Olympics < after 2022 Winter Paralympics < during 2022 Winter Paralympics; (3) on the opening day (4 February), the concentrations of the five pollutants in both cities were low. PM 2.5 and PM 10 concentrations varied widely without substantial peaks and the daily average maximum values were 15.17 and 8.67 µg/m 3 , respectively, which were 65.56 and 69.79% lower than those of DWO, respectively; (4) the PM 2.5 clean days in Beijing and Zhangjiakou DWO accounted for 94.12 and 76.47% of the total days, respectively, which were 11.76 and 41.18% higher than those during the same period in 2021; (5) during each phase of the 2022 Winter Olympics in Beijing and Zhangjiakou, the NO 2 /SO 2 and PM 2.5 /SO 2 trends exhibited a decrease followed by an increase. The PM 2.5 /PM 10 ratios in Beijing and Zhangjiakou were 0.65 and 0.67, respectively, indicating that fine particulate matter was the main contributor to air pollution DWO.

Suggested Citation

  • Fangjie Chu & Chengao Gong & Shuang Sun & Lingjun Li & Xingchuan Yang & Wenji Zhao, 2022. "Air Pollution Characteristics during the 2022 Beijing Winter Olympics," IJERPH, MDPI, vol. 19(18), pages 1-17, September.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:18:p:11616-:d:915495
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    Cited by:

    1. Qianjin Wu & Zusheng Wu & Shanshan Li & Zichao Chen, 2023. "The Impact of the Beijing Winter Olympic Games on Air Quality in the Beijing–Tianjin–Hebei Region: A Quasi-Natural Experiment Study," Sustainability, MDPI, vol. 15(14), pages 1-16, July.

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