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Davide Vignati 1 , Marina Camusso 2 and Janusz Dominik 1

Element fluxes from the river Po to the Adriatic Sea: state of knowledge and future needs for estimating element transport by large rivers. Davide Vignati 1 , Marina Camusso 2 and Janusz Dominik 1 1 Institut F.-A. Forel – University of Geneva, Switzerland 2 IRSA-CNR, Brugherio (Milan), Italy.

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Davide Vignati 1 , Marina Camusso 2 and Janusz Dominik 1

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  1. Element fluxes from the river Po to the Adriatic Sea: state of knowledge and future needs for estimating element transport by large rivers Davide Vignati1, Marina Camusso2 and Janusz Dominik1 1Institut F.-A. Forel – University of Geneva, Switzerland 2 IRSA-CNR, Brugherio (Milan), Italy curriculumin natural environmental science, 2005

  2. The river Po basin Modified from Battegazzore et al. (1991) curriculumin natural environmental science, 2005

  3. The river Po Middle course (Le Gabbiane) The delta Fishing huts in the delta River Po during flood (October 2000) curriculumin natural environmental science, 2005

  4. Good Bad Fair Poor Unclassified Water Quality in the river Po From Caggiati, 1999 curriculumin natural environmental science, 2005

  5. Type 2c Type 2b Type 1a Type 3a Type 2a Concentration vs. flow relatioships C: element concentration Q: river flow b: baseline concentration Modified from Davis and Zobriest, 1978 curriculumin natural environmental science, 2005

  6. Cu and Pb fluxes for different periods Data from Camusso et al., 1998; 2001; Tankéré et al., 2000 curriculumin natural environmental science, 2005

  7. Hydrology of the river Po (1988 – 1998) curriculumin natural environmental science, 2005

  8. Effect of river hydrology on element fluxes curriculumin natural environmental science, 2005

  9. Particulate flux Filterable flux Partitioning of element fluxes between filterable and particulate components Modified from Camusso et al., 2001 curriculumin natural environmental science, 2005

  10. Possible partitioning of total filterable Pb and Cu loads between the colloidal and truly dissolved components curriculumin natural environmental science, 2005

  11. Conclusions 1) Estimates must be: • Produced • Revised • Periodically updated 2) Effect of river hydrology (sampling design) 3) Flux partitioning 4) Global efforts and harmonisation still needed curriculumin natural environmental science, 2005

  12. Works cited • Battegazzore, M., Petersen, R.C. and Provini, A. 1991. Comparison between chemical and biological approaches for the evaluation of the organic enrichment of the River Po (Italy). Proceedings of the International Workshop on “Lowland Stream Restoration”, Lund, Sweden, 25-30 August 1991. • Caggiati G. (1999). A strategy for the control of eutrophication. In Proceedings of the 1st National Conference on Water Protection, Rome, 26-29-30 September 1999, pp. 101-114 (in Italian). • Pagnotta, R., Caggiati, C., Piazza, D. and Ferrari, F. 1995. In controllo della qualità delle acque superficiali del bacino padano. Situazione attuale e prospettive future (Water quality assessment in surface waters of the “Padana plain” basin. Current state and perspectives). Inquinamento, 4, 8-14. (In Italian). • IRSA. 1989. Un sistema informativo per la gestione della qualità delle acque: un’applicazione ai corsi d’acqua italiani (A system for the management of water quality: application to Italian water courses). Quad. Ist. Ric. Acque, 84, 195pp. (In Italian). • Davis, J.S., Zobrist, J. 1978. The interrelationships among chemical parameters in rivers - analysing the effect of natural and anthropogenic sources. Prog. Wat Tech.10, 65-78. • Camusso, M., Bonacina, M. and Pettine, M. 1998a. Reassessment of element fluxes to the Adriatic Sea from the River Po. Fresenius Environmental Bulletin, 7, 51-59. • Camusso, M., Vignati, D. and Pagnotta, R. 2001. I carichi di metalli in traccia del Po durante un evento di piena (Trace metal loads from the river Po during flood). Inquinamento, 24, 50-6 (in Italian). • Tankéré, S.P.C., Price, N.B. and Statham, P.J. 2000. Mass balance of trace metals in the Adriatic Sea. J. of Marine Systems, 25, 269-286. • Vignati, D., Camusso, M. and Dominik, J. 2003b. Elemental partitioning : a neglected dimension in the global estimates of fluvial metal fluxes to oceans ? Book of absract of the International Conference on « The Impact of Global Environmental Problems on Continental & Coastal Marina Waters », Geneva, Switzerland, 16-18 July 2003. curriculumin natural environmental science, 2005

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