A 3D Hydrodynamic Fate and Transport Model for Herbicides in Sacca di Goro Coastal Lagoon (Northern Adriatic)
2006
CARAFA Roberta | MARINOV Dimitar | DUERI Sibylle | WOLLGAST Jan | LIGTHART Jacobus | CANUTI Elisabetta | VIAROLI P. | ZALDIVAR COMENGES Jose'
Sacca di Goro is a shallow coastal microtidal lagoon with a surface area of 26 km2, and an average depth of about 1.5 m. Fresh water pollutants loads from Po River branches and several drainage canals lead to anthropogenic eutrophication, frequent summer anoxia crises and chemical contamination. Such events not only affect the lagoon ecosystem but also cause serious economic losses, the lagoon being the second producer of clams in Italy. The present work aims at using a fate model coupled with COHERENS 3D hydrodynamic model to simulate and to explain the spatial distribution and temporal variations of s-triazines herbicides in the Sacca di Goro lagoon. The simulation results of spatial and temporal dynamic behaviour of atrazine, simazine and terbuthylazine have been compared with experimental data obtained during an annual monitoring programme.
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