Spatial distribution and source apportionment of PCBs in sediments around Izmit industrial complexes, Turkey

Gedik, Kadir
Demırcıoglu, Filiz
İmamoğlu, İpek
The spatial distribution, degree of pollution and major sources of PCBs were evaluated in surficial sediments within the heavily urbanized and industrialized Izmit Bay and its main freshwater inputs. Sigma PCB concentrations range from 2.90 to 85.4 ng g(-1) in marine sediments and from ND to 47.7 ng g(-1) in freshwater sediments. Results suggest that high concentrations of Sigma PCBs were localized around a chlor-alkali plant and an industry that handles bulk liquid, dry and drummed chemicals, and petroleum products in the Bay. Using a chemical mass balance receptor model (CMB), major sources of PCBs in the region were investigated. The CMB model identified Aroclor 1254 and 1260 to be the major PCB sources in marine sediments and the less chlorinated Aroclor 1248 and 1242 as the major PCB sources in freshwater sediments. The potential sources for the PCBs were briefly discussed in terms of their use in various industrial applications.


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Identifying the spatial and temporal variability of eutrophication related indicators such as Chlorophyll-a (Chl-a), oxygen saturation (DO%), dissolved inorganic nitrogen (DIN) and total phosphorus (TP), as a measure of the potential pressures and productivity, were measured within the Mersin Bay, a wide shelf region of the Cilician Basin located in the Northeastern Mediterranean Sea. This study aims to characterize the trophic status of the water masses in the eastern shelf waters of the bay fed by river d...
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Four sediment cores were collected from the lower Fox River, Wisconsin, USA, to identify possible sources of polycyclic aromatic hydrocarbons (PAHs) using a chemical mass balance model. The cores, which were obtained in 1995 from areas close to Green Bay, Wisconsin, USA, had total PAH concentrations between 19.3 and 0.34 ppm. To determine historical trends of PAH inputs, Pb-210 and Cs-137 dating was used, and elemental carbon particle analysis was done to characterize particles from the combustion of coal, ...
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Sarısaltık, Ufuk; Tuncel, Süleyman Gürdal; Department of Environmental Engineering (2019)
Concentrations of inorganic pollutants including NO2, SO2, O3 and organic pollutants including benzene, toluene, ethylbenzene, o-xylene and m&p-xylene, which are known as BTEX compounds were measured on a seasonal basis in 13 cities located in the Central and Northern parts of Anatolian Plateau. Cities included in measurements were Ankara, Bartın, Bolu, Çankırı, Düzce, Eskişehir, Karabük, Kastamonu, Kırıkkale, Kırşehir, Kütahya, Yozgat, and Zonguldak. Sampling was performed in four seasonal campaigns in eac...
Citation Formats
K. Gedik, F. Demırcıoglu, and İ. İmamoğlu, “Spatial distribution and source apportionment of PCBs in sediments around Izmit industrial complexes, Turkey,” CHEMOSPHERE, pp. 992–999, 2010, Accessed: 00, 2020. [Online]. Available: