fig2
![Polychlorinated biphenyls (PCBs) in water and sediments from the Udu River, Niger Delta, Nigeria: concentration, distribution and risk assessment](https://image.oaes.cc/2ba3fcbb-599b-4dc2-989e-67ad3d71cf13/5175.fig.2.jpg)
Figure 2. Distribution of PCB homologs in sediments from the Udu River. PCB: Polychlorinated biphenyls.
Figure 2. Distribution of PCB homologs in sediments from the Udu River. PCB: Polychlorinated biphenyls.
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