Air Pollution Characteristics during the 2022 Beijing Winter Olympics

Fangjie Chu, Chengao Gong, Shuang Sun, Lingjun Li (), Xingchuan Yang and Wenji Zhao ()
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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

IJERPH, 2022, vol. 19, issue 18, 1-17

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.

Keywords: 2022 Winter Olympics; air pollutants; air quality; particulate matter; influencing factor; combined indicators; pollution control effectiveness (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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