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Spatial and Temporal Variations of the Concentrations of Pm10, Pm2.5 and Pm1 in China : Volume 15, Issue 11 (08/06/2015)

By Wang, Y. Q.

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Book Id: WPLBN0003990356
Format Type: PDF Article :
File Size: Pages 36
Reproduction Date: 2015

Title: Spatial and Temporal Variations of the Concentrations of Pm10, Pm2.5 and Pm1 in China : Volume 15, Issue 11 (08/06/2015)  
Author: Wang, Y. Q.
Volume: Vol. 15, Issue 11
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Zhang, X. C., Zhang, X. Y., Li, Y., Sun, J. Y., Che, H. Z., & Wang, Y. Q. (2015). Spatial and Temporal Variations of the Concentrations of Pm10, Pm2.5 and Pm1 in China : Volume 15, Issue 11 (08/06/2015). Retrieved from http://www.ebooklibrary.org/


Description
Description: Laboratory of Atmospheric Chemistry, Chinese Academy of Meteorological Sciences, Beijing, China. Concentrations of PM10, PM2.5 and PM1 were monitored at 24 stations of CAWNET (China Atmosphere Watch Network) from 2006 to 2014 using GRIMM 180 dust monitors. The highest particulate matter (PM) concentrations were observed at the stations of Xian, Zhengzhou and Gucheng, in Guanzhong and the Hua Bei Plain (HBP). The second highest PM concentrations were observed in northeast China, followed by southern China. According to the latest air quality standards of China, 14 stations reached the PM10 standard and only 7 stations, mainly rural and remote stations, reached the PM2.5 standard. The PM2.5 and PM10 ratios showed a clear increasing trend from northern to southern China, because of the substantial contribution of coarse mineral aerosol in northern China. The PM1 and PM2.5 ratios were higher than 80% at most stations. PM concentrations tended to be highest in winter and lowest in summer at most stations, and mineral dust impacts influenced the results in spring. A decreasing interannual trend was observed in the HBP and southern China from 2006 to 2014, but an increasing trend occurred at some stations in northeast China. Also diurnal variations of PM concentrations and meteorological factors effects were investigated.

Summary
Spatial and temporal variations of the concentrations of PM10, PM2.5 and PM1 in China

Excerpt
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