class='kwd-title'>Keywords: Power plant, Polychl'/> Concentrations and risks of polychlorinated biphenyls (PCBs) in transformer oils and the environment of a power plant in the Niger Delta Nigeria
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首页> 美国卫生研究院文献>Toxicology Reports >Concentrations and risks of polychlorinated biphenyls (PCBs) in transformer oils and the environment of a power plant in the Niger Delta Nigeria
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Concentrations and risks of polychlorinated biphenyls (PCBs) in transformer oils and the environment of a power plant in the Niger Delta Nigeria

机译：尼日利亚尼日尔三角洲的变压器油和电厂环境中多氯联苯（PCB）的浓度和风险

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class="kwd-title">Keywords: Power plant, Polychlorinated biphenyls, Environmental quality, Incremental lifetime cancer risk, Niger Delta, Nigeria class="head no_bottom_margin" id="abs0015title">AbstractThe concentrations of Ʃ14 PCBs were determined, with the aid of gas chromatography-mass spectrometry (GC–MS), in transformer/turbine oils, soils, groundwater, and drainage water collected within a power plant in the Niger Delta of Nigeria. The Ʃ14 PCB concentrations in the transformer oils, drainage water, groundwater and soils ranged from 484 to 48506 mg kg−1, 0.99 to 2.95 mg L−1, 0.16 to 0.56 mg L−1 and from 8.4 to 510 mg kg−1 respectively. The congener distribution patterns in these samples indicate the dominance of highly chlorinated homologues (hepta- and octa-PCBs). The Σ14 PCB concentrations in the transformer oils were above the provisional definition of low persistent organic pollutant (POP) content for PCBs of 50 mg kg−1 as defined in the guidelines on the management of POP waste of the Basel Convention. The concentrations of Ʃ14 PCBs in the soils were above the Dutch guideline value of 1000 μg kg−1 and the estimated incremental lifetime cancer risks relating to exposure of humans to PCBs in soils indicate serious health risks. There is therefore a need to implement a surveillance programme in the vicinity of power plants to determine the impacts on the adjacent ecosystem.
机译：<！-fig ft0-> <！-fig @ position =“ anchor” mode =文章f4-> <！-fig mode =“ anchred” f5-> <！-fig / graphic | fig / alternatives / graphic mode =“ anchored” m1-> class =“ kwd-title”>关键字：电厂，多氯联苯，环境质量，终生癌症风险增量，尼日利亚尼日尔三角洲类摘要借助气相色谱-质谱法（GC-MS）测定了变压器/涡轮机油，土壤，地下水和天然气中and14 PCBs的浓度。尼日利亚尼日尔三角洲一家发电厂内收集的排水。变压器油，排水，地下水和土壤中Ʃ14 PCB的浓度范围为484至48506 mg kg -1 ，0.99至2.95 mg L -1 ，0.16至0.56 mg L -1 和分别从8.4至510 mg kg -1 。这些样品中的同类物分布模式表明了高度氯化的同系物（七-PCB和八-PCB）的优势。变压器油中Σ14多氯联苯的浓度高于50毫克mg·kg −1 的多氯联苯低持久性有机污染物（POP）含量的临时定义，该规定是根据该国POP废物管理指南确定的。巴塞尔公约。土壤中Ʃ14多氯联苯的浓度高于荷兰准则值1000μgkg -1 ，据估计，与人类接触土壤中多氯联苯有关的终身终生癌症风险表明存在严重的健康风险。因此，有必要在电厂附近实施监视程序，以确定对邻近生态系统的影响。

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