Particulate Polycyclic Aromatic Hydrocarbons (PAH) in the Atmosphere of Bizerte City, Tunisia

作者：Ben Hassine S; Hammami B; Ben Ameur W; El Megdiche Y; Barhoumi B; Driss M R^*

来源：Bulletin of Environmental Contamination and Toxicology, 2014, 93(3): 375-382.

DOI：10.1007/s00128-014-1303-9

• Particle-associated polycyclic aromatic hydrocarbons (PAH)
• HPLC-FLD
• Sources
• Benzo(a) pyrene equivalent toxicity (BaP-TEQ)
• Diagnostic ratios
• Tunisia

The particle-phase concentrations of polycyclic aromatic hydrocarbons (PAH) were determined in 13 air samples collected in an urban area of Bizerte (Tunisia) during 2009-2010. Atmospheric particulate samples were extracted by ultrasonic bath and analyzed by high-performance liquid chromatography with fluorescence detection. PAH were found in all the analyzed air samples and the most abundant compounds were pyrene, fluoranthene, benzo[g,h,i]perylene, benzo[b]fluoranthene, chrysene and benzo[a]pyrene. a14-PAH concentrations ranging from 9.38 to 44.81 ng m(-3) with mean value of 25.39 ng m(-3). PAH diagnostic ratio source analysis revealed gasoline and diesel vehicular emissions as major sources. The mean total benzo[a]pyrene toxicity equivalent calculated for samples was 3.66 ng m(-3) and the mean contribution of the carcinogenic potency of benzo[a]pyrene was determined to be 55.8 %. Concentrations of particulate PAH in Bizerte city atmosphere were approximately eight times greater than sampled at a nearby rural site.

• 出版日期2014-9