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Sources of Polycyclic Aromatic Hydrocarbons in Urban Storm Water runoff in Tijuana, Mexico | ||
| International Journal of Environmental Research | ||
| مقاله 12، دوره 7، شماره 2، تیر 2013، صفحه 387-394 اصل مقاله (348.35 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijer.2013.617 | ||
| نویسندگان | ||
| E. García-Flores؛ F.T. Wakida* ؛ J.H. Espinoza-Gomez | ||
| Department of Chemical Sciences and Engineering, Autonomous University of Baja California, Calzada Universidad 14418. International Industrial Park, Tijuana, Baja California, Mexico, C.P. 22390 | ||
| چکیده | ||
| Eight sites were sampled during seven rain events to quantify and identify the sources of polycyclic aromatic hydrocarbons in urban runoff in the city of Tijuana, Mexico. The total Σ16 PAHs concentration rangedfrom 1113 to 4866 μg/Lin the sampled sites and thetotal suspended solid concentrations ranged from 7725 to 4413 μg/L. The high concentrations of total suspended solids were probably the result of the erosion of bare soil areas in the basin area of the sampling sites. The PAH concentration in urban runoff from industrial sites was not as high as expected in comparison to residential sites. The potential sources of PAH were identified using the diagnostic ratios between PAHs and PCA analysis. Vehicular exhaust emissions (diesel and gasoline) and used crankcase oil were the main contributors to PAHs in urban storm water runoff. Charcoal combustion, diesel oil andlubricant oil were also identified as contributors to PAHs. | ||
| کلیدواژه‌ها | ||
| PAH؛ Diagnostic ratios؛ PCA؛ Pollution؛ Suspended solids | ||
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