VERBI VEnice Research BIbliography
VERBI VEnice Research BIbliography |
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Moret, I., Piazza, R., Gambaro, A., Ferrari, S., & Manodori, L. (2002). Exchanges of organic pollutants at the sediment-water interface in the venice lagoon. Scientific Research and Safeguarding of Venice, Corila Research Program 2001 Results, I, 447–457.
Added by: Dott. Alessandro Meggiato (28/05/2014 16:19:20) |
| Tipo di Risorsa: Articolo di Rivista Chiave di citazione BibTeX: Moret2002 Invia la risorsa per email ad un amico View all bibliographic details  |
Categorie: General Keywords: chimica, contaminazione chimica - chemical contamination, extend abstract corila, processi ambientali - Environmental Processes, sedimentologia Creatori: Ferrari, Gambaro, Manodori, Moret, Piazza Collezione: Scientific Research and Safeguarding of Venice, Corila Research Program 2001 Results |
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| Abstract |
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The sediment-water interface is place of continuous exchange of organic compounds, of nutrients and of metals1,2,3. In particular the particulate organic material (POM) present in the water column over the sediment surface can settle on the sediment causing a flux of organic pollutants towards it. For many of these compounds the sediment constitutes the final reservoir. However several factors, chemical, physical and biological can cause them to remobilize by reversing the previous flux. For example partial decomposition of organic matter causes the formation of dissolved organic matter, which concentrates in the pore water; concentration differences between the pore water and the water over it can promote fluxes of these substances at the sediment-water interface2. The practice of benthic chambers1,2,4 has proved to be a valid approach for gauging the fluxes of some metals and some nutrients at the sedimentwater interface. This work studies the exchange of organic pollutants at the sedimentwater interface in the Venice lagoon. The results of two experiments, using benthic chambers, are presented; the behaviour of lychlorobiphenyls (PCB), polycyclic aromatic hydrocarbons (PAH) and aliphatic hydrocarbons (AH) are studied. Added by: Dott. Alessandro Meggiato |