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Environmental Geology

, Volume 27, Issue 4, pp 270–285 | Cite as

Impact of a coastal disposal site for inert wastes on the physical marine environment, Barcola-Bovedo, Trieste, Italy

  • E. Colizza
  • G. Fontolan
  • A. Brambati
Article

Abstract

Sediments in the marine area surrounding the Barcola-Bovedo coastal disposal site for inert wastes show a textural adjustment as a response to the new morphology due to construction of a 150-m-wide × 350-m-long landfill. Relatively coarse-sized deposits were found along the nearshore area facing the central landfill face, while pelitic sediments transported in suspension settle deeper, mainly in the northwestern sector of the study area, according to the cyclonic circulation scheme. Geochemical comparison between disposed material and sea-bottom sediments, normalized taking in account the regional variability of the element contents, shows: (1) Cr concentrations in the coastal samples twice as high as in the offshore ones, with the former characterizing the whole coastal and port area of Trieste, and (2) “anomalous” enrichments of Zn, Cu, and Pb, located mainly in the southern stretch of the investigated area, where dumping work is in progress in order to connect the landfill with the port area. Although the new morphology of the sea bottom is reflected in the grain-size redistribution, the sediments were not altered as far as their geochemical proprieties are concerned. In contrast, the recent discharge of material in the southern area is easily discernible because of its high heavy-metal content.

Keywords

Sediment Transport Cyclonic Circulation Port Area Marine Area Regional Variability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • E. Colizza
    • 1
  • G. Fontolan
    • 1
  • A. Brambati
    • 1
  1. 1.Istituto di Geologia e PaleontologiaUniversità degli StudiTriesteItaly

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