Scientific Research Publishing Inc. ous compounds PAHs, TPHs, PCBs and heavy metals in June and July of

Overview

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ated by means of a surface control unit connected to a computer, (RS 232C),
simultaneously within a range 0 to 30 m sea depth, the following measuring pa-
panel device through an RS232 connection by means of a special Interface
flame (see Table 2 & Table 3) (23). Arsenic (As) analyzed by implementing ISO
Table 2. Chemical analysis methodology of sea column samples.
Table 3. Chemical analysis methodology of sea bed sediment sampling and aquatic spe-
amendments (32). In (Table 4) Lab’s methodology & applied techniques to cer-
Fluorene etc.) (see Table 5). Their analyses were carried out by means of a Gas
ČSN EN ISO 6468 and US EPA method 8000D standards (see Table 4, Table 5)
techniques given (see Table 7) (39).
Table 4. Chemical analyses of sea column (33)-(35).
Table 5. Lab PAH applied lab method/technique.
Table 6. Lab PCB applied lab method/technique.
Table 7. Lab petroleum hydrocarbon applied lab method/technique.
impact of heavy metals in aquatic life and specifically to seawater. In (Table 8)
(Table 9) presents the pollution classes. (Igeo) calculation formula is given below:
Table 8. Maximum Concentration Criteria for seawater column in (μg·L−1) of certain
Table 9. Geo-accumulation index (Igeo) pollution classes (42).
areas of our interest, in June & July of 2019, were estimated in (Table 10). Red
are presented in (Table 11) whereas in (Table 12), laboratory analyses’ outcome
Table 10. Geo-accumulation Index gradation, on seabed sediments in caldera (Thira isl-
Table 11. Soil contamination categories according to CF and PLI assessment (43) (44).
Table 12. CF and PLI indices of seabed sediments in caldera (Thira island) nearby “Sea
(Table 14) since the unlisted ones were below the detection level. Organic pol-
of tissue analyses were selected in (Table 16).
as Shannon-Wiever Index (49) (Table 17), to measure species in an ecosystem.
Table 16. Results for (Fe, Zn, Mn & As) of aquatic species (fish stock) tissues from calde-
Table 17. Biodiversity indices of fishery tissues to be sampled in caldera (47) (48) (49).
side effects. Naphthalene detectable concentration was confirmed up to 0.601
(μg·L−1) (Table 15). US-EPA (1980), consolidated the toxicity of naphthalene in
sis was conducted (Table 18). (RPD) < 20% considered to be an accepted stan-
Table 18. Relative Percent Difference criterion control over heavy metal sampling in June
Table 16, in certain cases, (Fe), (Zn), (Mn) and (As) were resulted to be above
puts in CO2Compass-SE corrosion prediction software (Table 19, Table 20).
Table 20. Seawater Physicochemical Parameters and assumptions at the site of Shipwreck
(Depth): 117 m (mean value of 86 m - 147 m)
(DO): 5.25 ml·L−1 (mean value of 5 - 5.5 ml·L−1)
(Current velocity): 0.33 m·s−1 (mean value of 0.22 - 0.44 m·s−1)
Table 21. Coating systems specified for MS Sea Diamond.
for the 10 mm thickness plate is 208 years, meaning that the superstructure, deck
(26) US EPA (2010) Method 1664, n-Hexane Extractable Material (HEM; Oil and

Methods (brief)

sediments were taken by using Ponar & Petersen grab samplers (Figure 8).
Geographical coordinates (Lat, Lon) of each sample station are depicted on GPS
sampling and sample handling (see Table 1).
Samples’ pretreatment was according to US-EPA, (Method 3050B) regarding
ASTM D4698-92 Rev. 2007 was adopted for the analyses of the samples. Dupli-
cate analysis was conducted for every sample collected (20). Total Chromium as
Figure 8. Grab sampler in action collecting
Sampling and sample handling & preservation protocols
Standard Practices for Nitric Acid Digestion of Solid
Discrete Depth Samplers
Environmental Samples for Laboratory Analysis
were analyzed by using Continuum Source Electrothermal Atomic Absorption
Spectrometry i.e. CS AAS and adopting APHA 3113A, B, C methodology (21).
ter column analyzed by employing APHA 3111 B, and AAS technique with
Hydride Generation Atomic Absorption Spectrometry based on ISO
Table 2. Chemical analysis methodology of sea column samples.
(Ni) APHA7 3111B (Electrothermal CS AAS)
(Cu) APHA 3111B (Electrothermal CS AAS)

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The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.

Commit	Date	Change	Description
b01ec52c	2026-08-04	major	2 sections added
d49e450f	2026-08-03	major	5 sections added; narrative text revised