The present study was accomplished to fulfill the requisition of the Appeal
Court of the city of Piraeus. According to the Court’s Decision, an environmental
impact assessment should be made for the ongoing condition of the
wreckage along with a study of the corrosion evolution process and a provision
of the hull’s endurance should be estimated. The wreckage was sounded
out, surveyed thoroughly by means of an ROV device immersed ad hoc. Extended
videos and photo shots were taken and the exact position of the vessel
depicted analytically on a sea contour depth chart. Hull corrosion, sea column
& sea bottom sediment sampling carried out for the analysis of hazardous
compounds PAHs, TPHs, PCBs and heavy metals in June and July of
2019. Fish and oyster tissues were analyzed in the lab for heavy metals’ detection.
A great concern was given for (Cd) & (Pb) concentration in sea column
nearby wreck. Α report of about 1000 pages of the methodology & results was
handed over to the Appeal Court of which merely partial significant segments
are presented herein. The technical report denotes that PCBs, PAHs, TPHs
sea bed & sea column measurements nearby the wreck were, in general, low
or below detectable level. As regards heavy metals concentration level in aquatic
sea column, the results indicate that only in certain locations heavy
metals i.e. (Pb) and (Ni) were measured above the detection limit and classified
according to contamination factors from moderate to high contamination
level and might attribute to the presence of the wreck in the close area.
Contamination factor indices consolidate the approach that the hull presence
in the bottom contributes to the environmental degradation of the “caldera”
ecosystem. The vessel’s hull is expected to be wiped out in almost four hundred
years period according to the applied corrosion model.

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