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Bull Environ Contam Toxicol ; 93(3): 375-82, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24902648

ABSTRACT

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. ∑14-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.


Subject(s)
Air Pollutants/analysis , Particulate Matter/analysis , Polycyclic Aromatic Hydrocarbons/analysis , Atmosphere/analysis , Carcinogens/analysis , Chrysenes/analysis , Cities , Gasoline/analysis , Humans , Pyrenes/analysis , Tunisia , Vehicle Emissions/analysis
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