Surface sediment samples were collected at six locations of the Lagoon of Venice reflecting potential different contamination sources and representative of different hydrological situations. Analysis of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDFs), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), linear alkylbenzenes (LABs) and coprostanol have been carried out by gas chromatography-mass spectrometry (GC-MS) to assess the influence of various pollution sources: urban, industrial and combustion processes. PAHs, PCBs, coprostanol, and LABs showed the highest levels in the sample collected within the city of Venice (Canal Grande) indicating a very heavy contamination due to combustion sources and to the domestic waste waters directly entering the canals of the city. The highest levels of PCDD/PCDFs were found in samples collected near the industrial area of Porto Marghera. The investigation on the PCDD/PCDFs homologue profiles suggested the presence of two dififeient sources for these pollutants, one due to combustion processes and another one due to the chemical processes of torto Marghera.
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- Analysis of Organic Micropollutants in Sediment Samples of the Venice Lagoon, Italy
- Springer Netherlands