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首页> 外文期刊>Current Journal of Applied Science and Technology >Anions, Total Petroleum Hydrocarbons andAromatic Hydrocarbons in Soils of Aba Dumpsites
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Anions, Total Petroleum Hydrocarbons andAromatic Hydrocarbons in Soils of Aba Dumpsites

机译：阿坝堆场土壤中的阴离子，总石油烃和芳香烃

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This study was intended to evaluate the extent of contamination of soils in the vicinity of some selected dumpsites (Enyimba, Ogbor Hill and World Bank) in Aba Metropolis by anions (nitrate, sulphate and phosphate), polycyclic aromatic hydrocarbon and total petroleum hydrocarbon. Soil samples were obtained in triplicate on monthly intervals for three consecutive months during dry seasons in three different dumpsites and a neighborhood reference site (Aba North Industrial Layout). These soil samples were then analysed for anions, total aromatic hydrocarbons and total petroleum hydrocarbon.? Analysis of total aromatic hydrocarbons and total petroleum hydrocarbons were performed by gas chromatographic method whereas spectrophotometer (model 2000) was used in evaluating nitrate, sulphate and phosphate concentrations in the soil samples. Nitrate content ranged from 980.0 to 2120.3 mg/Kg (Enyimba dumpsite), 850.25 to 1120.3 mg/Kg (Ogbor Hill Dumpsite) and 102.43 to 1980.72 mg/Kg (World Bank Dumpsite). Sulphate concentrations which ranged from 78.99 to 121.21 mg/Kg at the dumpsites were higher when compared to values obtained from reference samples (21.65 to 94.50 mg/Kg). The levels of phosphate in the soil samples from the dumpsites ranged from 9.63 – 15.10 mg/Kg, 7.13 – 12.25 mg/Kg and 5.10 – 10.80 mg/Kg, in Enyimba Dumpsite, Ogbor Hill Dumpsite and World Bank Dumpsite respectively. The concentration of phosphate in the reference samples demonstrated lower values (2.78 – 5.80 mg/Kg) when compared with those from dumpsites. The total polycyclic aromatic hydrocarbons (PAHs) distribution in the dumpsites and the reference site were Enyimba dumpsite (3.27 to 4.32 mg/Kg), Ogbor Hill Dumpsite (2.51 to 3.85 mg/Kg), World Bank Dumpsite (2.15 to 3.98 mg/Kg) and Aba North Industrial Layout (0.05 to 0.09 mg/Kg) respectively. The concentration of TPH ranged from 102.7 to 1340.4 mg/Kg, 93.9 to 1107.3 mg/Kg and 99.10 to 1098 mg/Kg for Enyimba, Ogbor Hill and World Bank dumpsites respectively. The samples from Aba North Industrial Layout recorded the least concentration levels ranging from non detectable limits to 0.09 mg/Kg. The results however, revealed a depth-wise steady decrease in concentrations across the soil (depth) profile with Enyimba dumpsite having elevated levels of all the parameters evaluated when compared with? other study stations. There was no contamination activity found in samples obtained from reference site (Aba North Industrial Layout) unlike in the dumpsites besides the levels of total petroleum hydrocarbon (TPH) indicates potent health risk in the environment of the dumpsites.
机译：这项研究的目的是评估阴离子（硝酸根，硫酸根和磷酸根），多环芳烃和总石油烃对阿坝州某些选定垃圾场（埃因姆巴，奥格博山和世界银行）附近土壤的污染程度。旱季期间，在三个不同的垃圾场和附近的参考地点（阿坝北工业布局），连续三个月每月三次重复获取土壤样品。然后分析这些土壤样品中的阴离子，总芳烃和总石油烃。通过气相色谱法分析总芳烃和总石油烃，而分光光度计（2000型）用于评估土壤样品中的硝酸盐，硫酸盐和磷酸盐浓度。硝酸盐含量范围从980.0至2120.3 mg / Kg（Enyimba垃圾场），850.25至1120.3 mg / Kg（Ogbor Hill垃圾场）和102.43至1980.72 mg / Kg（世界银行垃圾场）。与自参考样品获得的硫酸盐浓度（21.65至94.50 mg / Kg）相比，在垃圾场的硫酸盐浓度范围更高，为78.99至121.21 mg / Kg。在Enyimba垃圾场，Ogbor Hill垃圾场和世界银行垃圾场中，垃圾场土壤样品中的磷酸盐水平分别为9.63 – 15.10 mg / Kg，7.13 – 12.25 mg / Kg和5.10 – 10.80 mg / Kg。与垃圾场相比，参考样品中的磷酸盐浓度显示较低的值（2.78 – 5.80 mg / Kg）。垃圾场和参考场中的多环芳烃总量分布为：Enyimba垃圾场（3.27至4.32 mg / Kg），Ogbor Hill垃圾场（2.51至3.85 mg / Kg），世界银行垃圾场（2.15至3.98 mg / Kg） ）和Aba North工业布局（0.05至0.09 mg / Kg）。对于Eny​​imba，Ogbor Hill和世界银行垃圾场，TPH的浓度分别为102.7至1340.4 mg / Kg，93.9至1107.3 mg / Kg和99.10至1098 mg / Kg。来自Aba North Industrial Layout的样品记录的最低浓度水平从不可检测的极限到0.09 mg / Kg。然而，结果表明，与相比，Enyimba垃圾场的所有评估参数水平都在升高，整个土壤（深度）剖面的浓度均在稳步下降。其他学习站。与垃圾场不同，从参考点（阿坝北工业布局）获得的样品中没有发现污染活动，除了总石油烃（TPH）的水平表明在垃圾场的环境中存在潜在的健康风险。

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