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Modeling Study of Pm2.5 Pollutant Transport Across Cities in China's Jing–jin–ji Region During a Severe Haze Episode in December 2013 : Volume 15, Issue 10 (26/05/2015)

By Jiang, C.

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Book Id: WPLBN0003987748
Format Type: PDF Article :
File Size: Pages 12
Reproduction Date: 2015

Title: Modeling Study of Pm2.5 Pollutant Transport Across Cities in China's Jing–jin–ji Region During a Severe Haze Episode in December 2013 : Volume 15, Issue 10 (26/05/2015)  
Author: Jiang, C.
Volume: Vol. 15, Issue 10
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Zhao, T., Wang, H., Li, T., Jiang, C., & Che, H. (2015). Modeling Study of Pm2.5 Pollutant Transport Across Cities in China's Jing–jin–ji Region During a Severe Haze Episode in December 2013 : Volume 15, Issue 10 (26/05/2015). Retrieved from

Description: Nanjing University of Information Science {&} Technology, Nanjing 210044, China. To study the influence of particulate matter (PM) transported from surrounding regions on the high PM2.5 pollution levels in Beijing, the GRAPES-CUACE model was used to simulate a serious haze episode that occurred on 6–7~December 2013. The results demonstrate the model's suitability for describing haze episodes throughout China, especially in the Beijing–Tianjin–Hebei (Jing–Jin–Ji) region. A very close positive correlation was found between the southerly wind speed over the plain to the south of Beijing and changes in PM2.5 in Beijing, both reaching maximum values at about 900 hPa, suggesting that the lower atmosphere was the principal layer for pollutant PM transport from its southern neighbouring region to Beijing. During haze episodes, and dependent upon the period, Beijing was either a pollution source or sink for its surrounding area. PM input from Beijing's environs was much higher than the output from the city, resulting in the most serious pollution episode, with the highest PM2.5 values occurring from 00:00 to 10:00 UTC (08:00 to 18:00 LT), 7 December 2013. PM pollutants from the environs of the city accounted for over 50 % of the maximum PM2.5 values reached in Beijing. At other times, the Beijing area was a net contributor to pollution in its environs.

Modeling study of PM2.5 pollutant transport across cities in China's Jing–Jin–Ji region during a severe haze episode in December 2013

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