Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in sediments from the Mersey Estuary, UK
Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in sediments from the Mersey Estuary, UK
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DOI：
10.1016/j.scitotenv.2006.12.036
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发表时间：
2007-03-01
影响因子：
9.8
通讯作者：
Kim, A. W.
中科院分区：
文献类型：
--
作者：
Vane, C. H.;Harrison, I.;Kim, A. W.
对默西河口沉积物中的多环芳烃 (PAH) 和多氯联苯 (PCB) 进行了分析。总PAH浓度范围为626至3766μg/kg，总PCB浓度范围为36至1409μg/kg。与具有相似工业化和城市化历史的其他英国河口相比，这些集中度处于中等水平。整个默西河口各个多环芳烃的分布是一致的，这与分子指数一起表明主要是热解输入，并通过各种工业成岩来源增强。三到七 PCB 同系物的比较揭示了整个河口的多个来源和输入。在加斯顿码头附近收集的沉积物核心揭示了多氯联苯污染的起飞、污染物输入峰值和近期下降。然而，埃尔斯米尔港沉积物的第二个深度剖面显示，由于广泛的沉积物改造和混合，总或单个 PCB 浓度几乎没有变化。 (c) 2007 Elsevier B.V 保留所有权利。
Sediments from the Mersey Estuary were analysed for polycylic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). Total PAH concentrations ranged from 626 to 3766 mu g/kg and total PCB concentrations ranged from 36 to 1409 mu g/kg. These concentrations are intermediate in comparison to other U.K estuaries with similar histories of industrialisation and urbanisation. The distribution of individual PAHs were consistent throughout the Mersey Estuary, this together with molecular indices suggests mainly pyrolitic inputs, augmented by a variety of industrial petrogenic sources. Comparison of tri-to-hepta PCB congeners revealed multiple sources and inputs throughout the estuary. A sediment core collected in close proximity to Garston Docks revealed the take-off, peak pollutant input and recent decline of PCB pollution. However, a second depth profile of sediments at Ellesmere Port showed little change in total or individual PCB concentrations due to extensive sediment reworking and mixing. (c) 2007 Elsevier B.V All rights reserved.