JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (2): 111-116.doi: 10.6040/j.issn.1672-3961.0.2016.401

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Characteristics of PM1.0 and PM1.0—2.5in haze days during winter in Jinan

YANG Yumeng1,2, YANG Lingxiao1,2*, ZHANG Junmei2, WANG Wenxing2   

  1. 1. School of Environmental Science and Engineering, Shandong University, Jinan 250100, Shandong, China;
    2. Environmental Research Institute, Shandong University, Jinan 250100, Shandong, China
  • Received:2016-11-03 Online:2017-04-20 Published:2016-11-03

Abstract: In order to explore the chemical characteristics offine particulate matter(PM)in haze days in Jinan, PM1.0 and PM2.5 samples were collected from 15 January to 17 February, 2014 by using mid-volume samplers, chemical components was was analyzed by using ions chromatography and OC/EC analyzer. The results indicated that SO2-4, NO-3 and NH+4 were the main components in both haze and non-haze days. The three ions contributed more to PM1.0 and PM2.5 in haze days compared with that in non-haze days, and the concentrations of the three ions obviously increased in PM1.0, which suggested that the increase of secondary inorganic aerosol was the main factor of haze formation. Carbon components in PM1.0 and PM2.5 ranked second. OC and secondary organic carbon(SOC)increased in haze days than that in non-haze days and enriched in PM with size less than 1um, which suggested that haze days facilitated the formation of SOC. The 72 h backward trajectories analysis indicated that air masses originated from the east of Shandong Province and Beijing-Tianjin area transported near the ground had an extraordinary effect on pollution level in Jinan during haze days.

Key words: PM1.0, water-soluble inorganic ions, back trajectory, PM1.0—2.5, carbon component, haze days

CLC Number: 

  • X513
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[1] . Study on water-soluble ions in fine particle matter and long-range transport of air masses at Jinan, China [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(4): 0-0 .
[2] YANG Ling-xiao,HOU Lu-jian,LV Bo,WANG Wen-xing,ZHOU Xue-hua,WANG Zhe,ZHOU Yang,CHENG Shu-hui .

Study on the water-soluble ions in fine particle matter and the long-range transport of air masses in the city Jinan

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