Journal of University of Chinese Academy of Sciences >
Study on the regional transported effect of PM2.5 in Guangzhou area
Received date: 2013-07-08
Revised date: 2013-12-03
Online published: 2014-05-15
On the basis of the operational forecasting data of PM2.5 output by CMAQ model run in Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, and by using the HYSPLIT4 model, the regional transported effect of PM2.5 at Guangzhou Panyu Atmospheric Composition Station from Dec 2012 to Mar 2013 was analyzed. The transported intension was defined according to Poirot's transport probability. The results are the following.The variation tendency of transport intension was consistent with the variation tendency of the observed data of PM2.5. The calculation results for transport intension are relatively reasonable. The concentration of PM2.5 in Panyu of Guangzhou was mainly influenced by the external sources. The local pollution contribution of PM2.5 was only 31%, and contributions from the Pearl River Delta(PRD, including Guangzhou) and the outside of the PRD were 73% and 27%, respectively. There were three transport channels of PM2.5, the north, northeast, and coastal paths.
Key words： PM2.5; transport intension; Guangzhou
LI Tingyuan , FAN Shaojia , DENG Xuejiao , ZHANG Xubin , DENG Tao , LI Fei . Study on the regional transported effect of PM2.5 in Guangzhou area[J]. Journal of University of Chinese Academy of Sciences, 2014 , 31(3) : 403 -409 . DOI: 10.7523/j.issn.2095-6134.2014.03.016
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