The variation of PM2.5 concentration in the atmosphere is closely related to the variation in weather patterns. The change in weather pattern is accompanied by the corresponding change in atmospheric circulation characteristics. It is necessary to explore the relationship between PM2.5 concentration changes and atmospheric circulation characteristics during pollution periods. In this paper, Lamb-Jenkinson objective classification method is applied to classify daily atmospheric circulation. The pollution periods are calculated and the atmospheric circulation variation rule is obtained. Combined with the physical parameter field (humidity, potential temperature, and potential height), a typical pollution period is analyzed. Additionally, the influence of atmospheric circulation type variation on PM2.5 concentration and transport channel during the pollution period was obtained. The results show that atmospheric circulation types in the study period are dominated by A-type (anticyclonic), N-type (north), and NE-type (northeast), indicating obvious seasonal differences, and the proportion of C-type (cyclonic) circulation was increased significantly in summer. During the pollution period analysis from 2 to 4 January 2019, atmospheric circulation type changed from N-type to NE-type (northeast), the wind direction changed from southeast wind, and the change of pressure gradient was consistent with the trend of the wind field. Moreover, the physical parameter field assisted in verifying the process of the pollution period from the conducive to the accumulation of PM2.5 to conducive to the deposition of pollutants and external transport. The research results would provide theoretical support for PM2.5 prediction during the pollution period and also supply a theoretical and technical basis for the establishment of ecological compensation standards for air pollution and atmospheric environmental control.
机构:
Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China
Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China
Fudan Univ, Big Data Inst Carbon Emiss & Environm Pollut, Shanghai, Peoples R ChinaFudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China
Wang, Xiaoyan
Zhang, Renhe
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机构:
Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China
Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China
Fudan Univ, Big Data Inst Carbon Emiss & Environm Pollut, Shanghai, Peoples R ChinaFudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China
机构:
Beijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Collaborat Innovat Ctr Elect Vehicles, Beijing 100081, Peoples R ChinaBeijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Wang, Gang
Cheng, Shuiyuan
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机构:
Beijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Collaborat Innovat Ctr Elect Vehicles, Beijing 100081, Peoples R ChinaBeijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Cheng, Shuiyuan
Li, Jianbing
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机构:
Univ No British Columbia, Environm Engn Program, Prince George, BC V2N 4Z9, CanadaBeijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Li, Jianbing
Lang, Jianlei
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机构:
Beijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Collaborat Innovat Ctr Elect Vehicles, Beijing 100081, Peoples R ChinaBeijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Lang, Jianlei
Wen, Wei
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机构:
Beijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Collaborat Innovat Ctr Elect Vehicles, Beijing 100081, Peoples R ChinaBeijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Wen, Wei
Yang, Xiaowen
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机构:
Beijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Collaborat Innovat Ctr Elect Vehicles, Beijing 100081, Peoples R ChinaBeijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Yang, Xiaowen
Tian, Liang
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机构:
Beijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
Collaborat Innovat Ctr Elect Vehicles, Beijing 100081, Peoples R ChinaBeijing Univ Technol, Key Lab Beijing Reg Air Pollut Control, Beijing 100022, Peoples R China
机构:
City Univ Hong Kong, Dept Publ Policy, Tat Chee Ave, Kowloon, Hong Kong, Peoples R ChinaCity Univ Hong Kong, Dept Publ Policy, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
Zhang, Xiaoling
Shi, Minjun
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机构:
Renmin Univ China, Sch Econ, 59 Zhongguancun St, Beijing 100872, Peoples R ChinaCity Univ Hong Kong, Dept Publ Policy, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
Shi, Minjun
Li, Yuanjie
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机构:
Univ Chinese Acad Sci, Sch Econ & Management, 80 Zhongguancun East Rd, Beijing 100190, Peoples R ChinaCity Univ Hong Kong, Dept Publ Policy, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
Li, Yuanjie
Pang, Rui
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机构:
City Univ Hong Kong, Dept Publ Policy, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
Univ Chinese Acad Sci, Sch Econ & Management, 80 Zhongguancun East Rd, Beijing 100190, Peoples R ChinaCity Univ Hong Kong, Dept Publ Policy, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
Pang, Rui
Xiang, Nan
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机构:
Beijing Univ Technol, Sch Econ & Management, 100 Pingleyuan, Beijing, Peoples R ChinaCity Univ Hong Kong, Dept Publ Policy, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
机构:
Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China
Jin, Jiannan
Liu, Shuang
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机构:
Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China
Liu, Shuang
Wang, Lili
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机构:
Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China
Wang, Lili
Wu, Shuqi
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机构:
Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China
Wu, Shuqi
Zhao, Wenji
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机构:
Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R ChinaCapital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China