Transport Patterns and Potential Sources of Atmospheric Pollution during the XXIV Olympic Winter Games Period

Zhang, Yuting; Xiaole, Pan; Tian, Yu; Liu, Huan; Chen, Xueshun; Ge, Baozhu; Wang, Zhe; Tang, Xiao; Lei, Shandong; Yao, Wei; Ren, Yuanzhe; Tian, Yongli; Li, Jie; Fu, Pingqing; Xin, Jinyuan; Sun, Yele; Cao, Junji; Wang, Zifa

doi:10.1007/s00376-022-1463-1

Cited by 9 publications

(2 citation statements)

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“…The 24th Winter Olympics was held in Beijing, China, from February 4 to 20, 2022 (Wang et al, 2022b;Zhang et al, 2022). Being China's capital city, the air quality in Beijing during the Winter Olympics has become the focus of global attention.…”

Section: Introductionmentioning

confidence: 99%

“…It has taken a series of measures such as shutting down high-energy-consuming enterprises, restricting the use of motor vehicles, and widely using new energy (Miao et al, 2015;Su et al, 2015;Su et al, 2015;Ye et al, 2016;Yang et al, 2018;Sun et al, 2021). However, the emission of air pollution precursors from the Yangsha and North China Plain in the central and western regions of Inner Mongolia in autumn and winter still seriously affects the air quality in Beijing, resulting in the frequent occurrence of severe haze events in the region (Miao et al, 2020;Miao et al, 2021;Zhang et al, 2022). Air pollution remains one of the greatest challenges in the process of environmental improvement in the region.…”

Section: Introductionmentioning

confidence: 99%

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Influence of meteorological conditions on the air quality during the 2022 Winter Olympics in Beijing

Wang

Cheng

et al. 2022

Front. Environ. Sci.

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The 24th Winter Olympics was held in Beijing, and the air quality in the Beijing area has become the focus of the world’s attention. The Beijing government has taken a series of strict measures to control pollutant emissions during the Winter Olympics, which also provides us with a valuable opportunity to study the impact of meteorological conditions on pollutants. We defined November, December, January, February, and March as the polluted period in Beijing, and used the T-PCA method to divide the circulation types (CTs) affecting Beijing into six kinds (CT1-CT6). It was found that under the control of the western high pressure (CT1) and the northwest high pressure (CT4), the concentrations of PM2.5, NO2, SO2 and CO in Beijing were lower; while under the control of the northern high pressure (CT2), eastern high pressure (CT5), southeast high (CT3) and northeast low pressure (CT6), the concentration of PM2.5, NO2, SO2 and CO is higher. By analyzing the daily CTs, wind field and pollutant concentration changes in the Beijing area during the Beijing Winter Olympics, it was found that when two pollution events occurred during the Winter Olympics, the Beijing area was mainly prevailed by CT2, CT3, and CT6. Comparing the frequency of occurrence of six CTs during the 2022 Winter Olympics and the same period from 2014 to 2021, it was found that the proportion of CT1 and CT4 increased significantly during the Winter Olympics. Finally, the FLEXPART-WRF model was used to analyze the 48-h backward footprint distribution of pollutant particles in Beijing during the Winter Olympics. It further showed that the circulation in the Beijing area during the Winter Olympics was generally conducive to the dispersion of pollutants, and the air quality was better.

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Section: Introductionmentioning

confidence: 99%