Department of Environmental Science, Rutgers, The State University of New Jersey, USA.
Department of Environmental Science, Rutgers, The State University of New Jersey, USA; Marine Sciences Center, University of Basrah, Iraq.
Chemosphere. 2024 Jun;357:141928. doi: 10.1016/j.chemosphere.2024.141928. Epub 2024 Apr 12.
Polychlorinated biphenyls (PCBs) are a primary contaminant of potential concern at the Newtown Creek superfund site. Measurements of PCBs in hundreds of samples of sediment (surface and cores) within Newtown Creek and at nearby reference locations were obtained from the Remedial Investigation (RI) databases. This data set was analyzed using Positive Matrix Factorization (PMF). A weight-of-evidence approach was used to attribute the PMF-generated fingerprints to sources. The PMF analysis generated eight factors (fingerprints or sources) that represent primary sources, such as Aroclors, as well as secondary sources, including the East River and Combined Sewer Outfalls (CSOs). In addition to the high-production volume Aroclors (1016/1242, 1248, 1254, and 1260), some less-widely used Aroclors (1232 and 1268) were found in Newtown Creek sediment. Aroclor 1268 is disproportionately abundant in the deepest sediments, while PCBs likely from CSOs are relatively more abundant in surface sediment.
多氯联苯 (PCBs) 是纽敦克超级基金场址的主要潜在关注污染物。从补救调查 (RI) 数据库中获得了纽敦克溪内和附近参考地点数百个沉积物 (表面和岩芯) 样本中 PCBs 的测量值。该数据集使用正矩阵因子分解 (PMF) 进行了分析。采用证据权重方法将 PMF 生成的指纹归因于来源。PMF 分析生成了八个因子 (指纹或来源)，代表了主要来源，如 Aroclors，以及二次来源，包括东河和合流污水排放口 (CSO)。除了高产量的 Aroclors (1016/1242、1248、1254 和 1260) 外，还在纽敦克溪沉积物中发现了一些使用较少的 Aroclors (1232 和 1268)。Aroclor 1268 在最深的沉积物中异常丰富，而可能来自 CSO 的多氯联苯在表层沉积物中相对更丰富。
