Department of Chemistry, Al-Hussein Bin Talal University, Ma'an, Jordan.
Faculty of Pharmacy, Yarmouk University, Irbid, Jordan.
Arch Environ Contam Toxicol. 2019 Nov;77(4):619-630. doi: 10.1007/s00244-019-00665-2. Epub 2019 Sep 6.
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.
本研究测定了约旦马安市街道土壤中的多环芳烃 (PAH) 水平。通过使用诊断比来估计土壤中 PAHs 的可能来源。采用超声提取法，用三份 20ml 正己烷/丙酮混合物从土壤样品中提取 PAHs。使用气相色谱-质谱联用仪测定提取物中的最优先环保署 13 种 PAHs。结果表明，∑13PAHs 的平均浓度范围为 77.0 至 917.4ng/g，土壤样品中检测到的 3 环和 4 环 PAHs 最为丰富（占 PAH 总浓度的约 60%）。比值表明，马安街道土壤中的 PAHs 具有生源和热成因两种来源。皮尔逊相关系数分析表明，∑13PAHs 的含量与土壤中的总有机物质（TOM）直接相关。方差分析表明，马安市的∑13PAHs 主要来自相同的来源。
