Abstract:Polycyclic aromatic hydrocarbons (ΣPAHs) were varied from 1250.41-4249.29 ng/g, with an average value of 2809.46 ng/g in street dust of Khamis-Mushait. A maximum concentration of fossil PAHs (ΣFPAHs) was recorded at incinerator and industrial areas representing 69.62% of ΣPAHs. However, the maximum concentrations of carcinogenic PAHs (ΣCARC) and combustion PAHs (ΣCOMB) were recorded at King Fahd Garden and Al-Hayat National Hospital areas, representing 41.70% and 27.46% of ΣPAHs, respectively. Naphthalene (NAP… Show more
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