Temporal Trends and Spatial Variations of Polycyclic Aromatic Hydrocarbons in Atmospheric PM₁₀ of Jinan, China

Abstract:

In order to investigate the distributions and characters of sixteen (U.S. EPA) polycyclic aromatic hydrocarbons (PAHs) in PM₁₀, samples were collected from three districts in Jinan, P.R. China during 2004-2005 and 2008-2009. The total concentrations of 16 PAHs were 33.6-627.3 ng·m^-3 in 2004-2005 and 37.4-696.0 ng·m^-3 in 2008-2009. Annual variations were slight. A small increase of PAH level presented from 2004-2005 to 2008-2009, while four and five aromatic rings accounted for 70% of all PAHs. An obvious seasonal trend of PAH abundance was observed. The highest concentrations of PAHs were measured in winter. Benzo (k) fluoranthene (BkF, 4-ring) and fluoranthene (FluA, 5-ring) were the most abundant PAHs in winter. Spatial variations of PAHs were obviously impacted by local pollution sources. In non-heating seasons, the district had more industries and traffic presented the most PAHs; in heating seasons, the district that had higher population density appeared more contamination for the domestic heating.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 40-45
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.40
• Online since: September 2013
• Authors: Jie Luo, Zhao Jie Cui, Shi Yong Du, Guo Lan Fan
• Keywords: PAHs, PM₁₀, Spatial Variation, Temporal Variation

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