LIANG Longchao1,2, QIU Guangle2, CHEN Zhuo1,3＊
（1.School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001,China;
2. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China;
3. State Key Laboratory of Atmospheric Fine Particles and Air Pollution Chemistry of Guiyang, Guiyang 550001,China）
Abstract: Three hundred and fifty seven samples of PM2.5 in ambient air were continuously collected in Guiyang City from May 2013 to May 2014 using the Wuhan Tianhong Sampler. Meteorological data were simultaneously recorded by HOBO U30, which exhibited that dormant northeast winds occurred in spring, autumn and winter, while south winds and high speed were found in summer. Results show that daily concentrations of PM2.5 ranged from 4.0 μg/m3?to?193 μg/m3 with an average of 70±33 μg/m3. Concentrations of PM2.5 exhibited obviously seasonal variations, winter＞autumn＞spring＞summer. Potential sources of PM2.5 mainly resulted from coal and industrial emissions. Compared with the other cities in China, results for PM2.5 were slightly low.
Keyword: PM2.5; seasonal variation; Meteorological parameter; Guiyang
EARTH AND ENVIRONMENT Vol. 43, No.3, Tot No.305, 2015, Page 290-295
