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首页> 美国卫生研究院文献>Toxics >Concentrations of Polybrominated Diphenyl Ethers (PBDEs) in Water from Asunle Stream Ile-Ife Nigeria
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Concentrations of Polybrominated Diphenyl Ethers (PBDEs) in Water from Asunle Stream Ile-Ife Nigeria

机译：尼日利亚Ile-Ife的Asunle Stream中水中多溴联苯醚（PBDEs）的浓度

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This study assessed the concentrations of polybrominated diphenylethers (PBDEs) in stream water obtained from Asunle stream, an adjoining stream of the Obafemi Awolowo University dumpsite. Water samples were collected for a period of eight months from six different locations comprising of a spot upstream in an uphill area relative to the refuse dumpsite and five others downstream along the stream course. The sampled waters were extracted with dicholoromethane using liquid-liquid extraction method and cleanup was carried out with silica gel. The final extracts after concentration were analyzed using GC-MS/MS. The recovery experiments were adequate (105%–110%). The mean levels of Ʃ6PBDEs compounds analyzed ranged from 0.03 to 0.45 ng/mL. Seasonal variability of PBDEs indicated that higher levels were found during the wet season. The levels of PBDEs recorded in this work were relatively lower compared to the values reported in the literature from other developed nations.
机译：这项研究评估了从Obafemi Awolowo大学垃圾场的相邻溪流Asunle溪流获得的溪流水中多溴二苯醚（PBDEs）的浓度。从六个不同的位置收集了八个月的水样，其中包括相对于垃圾堆放场的上坡区域上游的一个点和沿河道下游的五个其他位置。使用液-液萃取法用二氯甲烷萃取采样的水，并用硅胶进行净化。使用GC-MS / MS分析浓缩后的最终提取物。回收率实验足够（105％–110％）。分析的Ʃ6PBDEs化合物的平均水平为0.03至0.45 ng / mL。 PBDEs的季节变化表明，在雨季期间发现了更高的水平。与其他发达国家文献中报道的值相比，这项工作中记录的PBDEs水平相对较低。

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