Journal of Shandong University(Engineering Science) ›› 2020, Vol. 50 ›› Issue (4): 119-126.doi: 10.6040/j.issn.1672-3961.0.2019.541

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Aerosol optical properties on hazy days and clear days at rural and background sites in Shandong Province of China

ZHANG Wan1, YANG Lingxiao1,2*, ZHANG Xiongfei1, YAN Weida1, WANG Xinfeng1, WEN Liang1,ZHAO Tong1, WANG Wenxing1   

  1. 1. Environmental Research Institute, Shandong University, Qingdao 266237, Shandong, China;
    2. Jiangsu Collaborative Innovation Center for Climate Change, Nanjing 210023, Jiangsu, China
  • Published:2020-08-13

Abstract: To study the aerosol optical properties of rural and background areas in Shandong Province, aerosol was collected from June, 2014 to August, 2014 in Yucheng and Mt. Tai. We measured aerosol scattering coefficient and absorption coefficient by nephelometer and aethalometer. It was shown that the average of the single scattering albedo(ω)of haze days in Yucheng and Mt. Tai were both higher than that in clean days, which could be caused by the formation of sulphate and nitrate aerosols. The diurnal variation of scattering coefficient and absorption coefficient of Yucheng showed two peak patterns, which were mainly caused by morning and evening rush hour. However, the diurnal variation of scattering coefficient and absorption coefficient of Mt. Tai showed a unimodal pattern, which was attributed to the diurnal evolution of the atmospheric boundary layer. Indicated by the 48h backward trajectories, long-distance transmission from the southeast coastal areas via polluted cities such as Jinan, as well as local biomass burning emissions had an important influence on the formation of haze at Yucheng. However, during haze periods at Mt. Tai, the most frequently observed cluster moved slowly and could be considered a local source.

Key words: aerosol optical properties, scattering coefficient, absorption coefficient, diurnal variation, backward trajectory

CLC Number: 

  • X513
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