Heavy metals contamination levels at the Coast of Aliağa (Turkey) ship recycling zone

Neşer, Gökdeniz; Kontaş, Aynur; Ünsalan, Deniz; Uluturhan, Esin; Altay, Oya; Darılmaz, Enis; Küçüksezgi̇n, Fi̇li̇z; Tekoğul, Nermin; Yercan, Funda

doi:10.1016/j.marpolbul.2012.02.006

Cited by 89 publications

(25 citation statements)

References 31 publications

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“…For the other selected metals (Cr, Ni, Cu, Zn and As), the mean content in study areas was lower than that in all other domestic coastal bays, except Sanya Bay (See Table 1). In addition, levels of all selected metals in the study areas were significantly lower than those in other larger industrialized urban bays throughout the world, e.g., Masan Bay in South Korea [16] and Aliağa Bay in Turkey [17]. However, compared with the corresponding background values for the continental shelf of the South China Sea, the surface sediments collected were dramatically contaminated by the selected metals (Cu, Pb and Zn) in DYB.…”

Section: Distribution Of Total Metalsmentioning

confidence: 67%

Speciation of Metals and Assessment of Contamination in Surface Sediments from Daya Bay, South China Sea

et al. 2014

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Abstract:The contents, speciation, source factors and potential ecological risks of the selected metals (Cr, Ni, Cu, Pb, Zn, Cd and As) were analyzed in surface sediments from Daya Bay (DYB). The results show that, with the exception of Pb, metal concentrations have decreased at all sites over the past decade. The distribution features of these concentrations represent a ring shape that descends from shore to bay by varying degrees. Speciation analysis showed that Cr, Ni, Cu, Zn and As exist mainly in the residual fraction and, thus, are of low bioavailability, while Cd and Pb were found to be abundant in the non-residual fraction and, thus, have high potential mobility. The ratio of heavy metals in non-residual form in descending order is Pb (78.83%), Cd (78.65%), Cu (48.54%), Zn (48.10%), Ni (38.31%), Cr (28.43%) and As (27.76%). The ratio of Pb content is the highest, meaning the highest mobility of Pb. The metals' potential ecological risks to the environment were also assessed using the methods of the mean effect range-median quotient and the criteria of OPEN ACCESS Sustainability 2014, 6 9097 risk assessment code. The results showed that Cd presents the highest risk, and Pb and Cu are generally considered to be medium risks in the sub-basins of Daya Bay. The principal component analysis (PCA) revealed that natural coastal weathering and erosion of rock caused the highest input, followed by mariculture and industrial wastewater and, finally, domestic sewage discharge.

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Section: Distribution Of Total Metalsmentioning

confidence: 67%

Speciation of Metals and Assessment of Contamination in Surface Sediments from Daya Bay, South China Sea

et al. 2014

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“…The Aliağa and Nemrut Bay are very important area in the Eastern Mediterranean and pollution of the bays has been searched by several authors (Sponza and Karaoğlu, 2002;Esen et al, 2010;Neşer et al, 2008;2012a;2012b). The level of metals in surface sediments were compared with the other areas from world oceans (Table 6).…”

Section: Discussionmentioning

confidence: 99%

“…The Aliağa Bay is one of the most important ship recycling zone of the Mediterranean together shipping activity, shipbreaking industry, steel works and petrochemical complexes (Neşer et al, 2008).There are iron-steel factories, coal storage yards, fuel storage yards, fertilizer factory, natural gas power plant, electrical substation, small industrial areas and other medium and small establishments in region which cause heavy metal pollution (Sponza and Karaoğlu, 2002;Esen et al, 2010). The Aliağa Bay is contaminated by heavy metal, polycyclic aromatic and aliphatic hydrocarbons (PAHs) (Neşer et al, 2012a(Neşer et al, , 2012b. TheNemrut Bay, the neighboring marine environment of Aliağa town, is a subsystem within the Çandarlı Bay ecosystem and connects to the northern Aegean Sea.The Nemrut Bay is considered with anthropogenic pollution and sediments from the Nemrut Bay is highly contaminated by Hg, Pb, As and Zn .…”

Section: Hilal Aydınmentioning

confidence: 99%

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Aydin¹,

Yurur²,

Uzar³

et al. 2015

Turk. J. Fish. Aquat. Sci.

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The spatial distribution of modern dinoflagellate cysts was studied, with the purpose of understanding the impact from industrial pollution and sediment characteristics. Eight surface sediment samples were collected to analysis of the spatial distribution of dinoflagellate cysts from two industrially polluted areas: Aliağa and Nemrut Bay (Eastern Mediterranean). A total of 42 dinoflagellate cyst morphotype were identified and total cyst abundance ranged between 11 and 2543 cyst g -1 dry weight sediment at sampling points. The cyst assemblages were represented by cyst of Gymnodinium nolleri, Alexandrium affine type and Lingulodiniumma chaerophorum. The higher cyst concentration was recorded at mostly Aliağa Bay stations however the higher cyst diversity was found at Nemrut Bay stations. Total cyst concentration and autotrophic cyst concentration indicated metal pollution in the sampling areas whereas total number of cysts had no correlation with any metal levels in the sediment except Cr. The distribution of dinoflagellate cysts also showed correlation with sediment structure in Aliağa and Nemrut Bay.Keywords: Resting cyst, heavy metals, sediment, Eastern Mediterranean. Endüstriyel Kirliliğin Etkisindeki Aliağa ve Nemrut Körfezi Modern Dinoflagellat Kist Topluluğu ÖzetAliağa ve Nemrut Körfezi'nde (Doğu Akdeniz) endüstriyel kirlilik ve sediment karakteristiklerinin etkisini anlayabilmek amacı ile modern dinoflagellat kistlerinin uzamsal dağılımı çalışıldı. Sekiz yüzey sediment örneği endüstriyel kirlilik içeren bu alanlardan toplanarak dinoflagellat kistlerin uzamsal dağılımları analiz edildi. Örnekleme noktalarında toplam 42 dinoflagellat kist morfotipi belirlendi ve toplam kist bolluğu 11 ile 2543 kist g -1 kuru sediment ağırlığı olarak bulundu. Kist topluluğu Gymnodinium nolleri, Alexandrium affine tip ve Lingulodinium machaerophorum tarafından temsil edildi. Aliağa Körfezi istasyonlarında kist konsantrasyonu daha yüksek iken Nemrut Körfezi istasyonlarında kist çeşitliliği daha yüksek kaydedildi. Toplam kist konsantrasyonu ve ototrofik kist konsantrasyonu örnekleme alanında metal kirliliğini işaret etmesine rağmen toplam kist sayısı Cr hariç herhangi bir metalle bağlantılı değildir. Bununla birlikte dinoflagellat kist dağılımının Aliağa ve Nemrut Körfezi sediment yapısı ile ilişkili olduğu gözlenmiştir.Anahtar Kelimeler: Kalıcı kist, ağır metal, sediment, Doğu Akdeniz.

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“…[27] One of the major pollution sources in coastal waters are shipyards, harbors and marinas. [28,29] Activities in these areas may have a great impact on coastal line as various contaminants like trace metals, antifouling paints and particles, oil, solvents or water residues from ship hull washing are discharged in the water. [28] Biofouling is a big problem for both, small and large vessels leading to reduction of speed and increased fuel consumption.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Discrete and Passive Sampling (Diffusive Gradients in Thin-films – DGT) Approach for the Assessment of Trace Metal Dynamics in Marine Waters – a Case Study in a Small Harbor

Cindrić¹,

Cukrov²,

Durrieu³

et al. 2017

Croat. Chem. Acta

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Two complementary approaches, based on discrete and passive samplings (diffusive gradients in thin-films -DGT), supported by the speciation modeling, were evaluated for the assessment of distribution and operational speciation of trace metals (Zn, Cd, Pb, Cu, Ni and Co) within a small marine harbor (Rijeka, Croatia). Concentrations of dissolved metals were relatively low and comparable to, or slightly above those found in coastal Adriatic region. Compared to higher variability of dissolved metal concentrations due to the discrete sampling, smoother temporal distribution was recorded for DGT-labile metals. The percentages of DGT-labile metal concentrations, which reflect their affinity to organic matter, varied among metals with the following order: Cu < Zn ≈ Co < Ni < Cd ≈ Pb. DGT-labile metal concentrations predicted by speciation modeling were in a good agreement with the measured ones for Zn, Cd and Ni, while they are underestimated for Pb and Cu, and overestimated for Co. In-situ DGT technique is recommended for the assessment of the water quality status in marine environment.

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Heavy metals contamination levels at the Coast of Aliağa (Turkey) ship recycling zone

Cited by 89 publications

References 31 publications

Speciation of Metals and Assessment of Contamination in Surface Sediments from Daya Bay, South China Sea

Speciation of Metals and Assessment of Contamination in Surface Sediments from Daya Bay, South China Sea

Untitled

Evaluation of Discrete and Passive Sampling (Diffusive Gradients in Thin-films – DGT) Approach for the Assessment of Trace Metal Dynamics in Marine Waters – a Case Study in a Small Harbor

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