In this study, the levels of polycyclic aromatic hydrocarbons (PAHs) were determined in the street soil of Ma'an City, Jordan. The probable sources of PAHs in the soils were estimated by using diagnostic ratios. PAHs were extracted from soil samples via the ultrasonic extraction method using three portions of 20 mL of n-hexane/acetone mixture. The most priority environmental protection agency 13 PAHs were determined in the extract using gas chromatography-mass spectrometer. The results showed that average concentrations of ∑13PAHs ranged from 77.0 to 917.4 ng/g, and the 3- and 4-rings PAHs were the most abundant PAHs detected in the soil samples (~ 60% of the PAH total concentrations). The ratios showed that the PAHs in Ma'an's street soil have both petrogenic and pyrogenic sources. Pearson's correlation coefficient analysis showed that the content of ∑13PAHs is directly correlated to the total organic matter (TOM) in the soil. Analysis of variance indicated that Ma'an city mostly had the same sources for ∑13PAHs.

中文翻译：

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约旦马安市街道土壤中多环芳烃的浓度和来源评估。

在这项研究中，测定了约旦马安市街道土壤中多环芳烃的含量。通过使用诊断率估算土壤中PAHs的可能来源。使用三份20 mL正己烷/丙酮混合物，通过超声提取方法从土壤样品中提取PAHs。使用气相色谱-质谱仪在提取物中确定了最优先的环境保护机构13种多环芳烃。结果表明，∑13PAHs的平均浓度范围为77.0至917.4 ng / g，其中3环和4环PAHs是土壤样品中检测到的最丰富的PAHs（约占PAH总浓度的60％）。该比率表明，马安街道土壤中的PAHs既有成因来源，又有热源来源。皮尔逊 相关系数分析表明，Σ13PAHs的含量与土壤中的总有机质（TOM）直接相关。方差分析表明，马安市的∑13PAHs来源基本相同。