Characteristics of polycyclic aromatic hydrocarbons (PAHs) on airborne particulates in Beijing

Di Han Zhang, Yong Liang Ma, Ke Bin He, Feng Kui Duan, Ying Tao Jia, Tomoaki Okuda, Shigeru Tanaka

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Abstract

Total suspended particulates (TSP) samples were collected from Sep., 2003 to Jul., 2004 in Beijing, and 15 kinds of PAHs, ranging from 3 to 7 rings were analyzed. The maximum concentrations of ∑PAHs and BaP were 705 ng/m3 and 52 ng/m3 respectively. Average ∑PAHs concentrations in four seasons were 46 ng/m3, 16 ng/m3, 52ng/m3 and 268ng/m3 respectively; and the average BaP concentrations in four seasons were 2.8 ng/m3, 0.23 ng/m3, 3.3 ng/m3, 16 ng/m3 respectively. Regarding to the meteorological parameters, precipitation distinctly lowered the concentration in heating period; PAHs concentrations fall when the temperature goes up in non-heating period, but there is no obvious relation between concentration and temperature in heating period; the increase of wind speed level causes the decrease of PAH concentrations in the heating period, but relation between PAH concentrations and wind speed varied with aromatic rings of PAHs and levels of wind speed in the non-heating period.

Original languageEnglish
Pages (from-to)1269-1275
Number of pages7
JournalHuanjing Kexue/Environmental Science
Volume27
Issue number7
Publication statusPublished - 2006 Jul 1

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Keywords

  • Airborne particulates
  • Beijing City
  • Meteorological parameters
  • PAHs
  • Pollution characteristics

ASJC Scopus subject areas

  • Environmental Science(all)

Cite this

Zhang, D. H., Ma, Y. L., He, K. B., Duan, F. K., Jia, Y. T., Okuda, T., & Tanaka, S. (2006). Characteristics of polycyclic aromatic hydrocarbons (PAHs) on airborne particulates in Beijing. Huanjing Kexue/Environmental Science, 27(7), 1269-1275.