Untitled

Özkan, Ebru Yeşim

doi:10.4194/1303-2712-v12_1_16

Cited by 36 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The impact of low water current in the Bay could be related to the elevated trace metals concentration in wastewater sampled from GII and GIV. Such phenomenon of water current causing high trace metals was evidenced by earlier investigators (Yesim 2012;Yanguang et al 2013). Despite the presence of oil industries, moderate trace metals concentrations were observed in GVI and GV because of more precautionary measures taken to discharge treated wastewater from this region.…”

Section: Resultsmentioning

confidence: 61%

“…Additionally, environmental variables (temperature, salinity and pH), seasonal changes and anthropogenic inputs were found to alleviate the organic and inorganic pollutant's levels. The 'stressed ecosystem' of a Bay in Kuwait influencing the entire coastal environment to physiochemical and sedimentological variables, degradation of organic matter, enhanced primary productivity due to nutrient loadings in semiclosed eutrophication system and influence in domestic and industrial waste disposal via sewage outfalls showed similarities in marine Bays elsewhere the globe (Jean et al 2013;Yanguang et al 2013;Yesim 2012). When these pollutants containing trace metals reach beyond the threshold limits, they become toxic to the marine organisms and the surrounding environment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dispersion model and bioaccumulation factor validating trace metals in sea bream inhabiting wastewater drain outfalls

Bu-Olayan

Thomas

2013

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Our study was based on the recent increase in wastewater pollution and its deleterious effects to the marine ecosystem. Using numerical simulation (DESCAR-3.2 software program), we investigated the orientation and quantification of trace metals in wastewater discharges from permanent and semi-permanent drain outfalls constructed along the Kuwait Coastline encompassing six Kuwait Governorates (GI-GVI). This study was related to trace metals toxicity and bioaccumulation effects on the commercial yellow fin Sea bream, Acanthopagrus latus fish using probit program and bioaccumulation factor (BAF), respectively. Observations from wastewater discharges showed high trace metals concentrations in the sequence of Zn [ Cr [ Cu [ Fe [ Ni [ Pb [ Hg during winter compared to summer and in GI and GIV compared to drain outfalls in the other Governorates. Seasonally, trace metals in A. latus revealed the sequence of Zn [ Fe [ Cu [ Ni [ Cr [ Pb [ Hg in GI, GII and GIV indicating the significance of toxic metals that bioaccumulated from their surrounding untreated wastewater. Toxicity test revealed A. latus highly sensitive to Hg even at low lethal concentrations (LC 15 ) compared to other metals. BAF in A. latus body parts was [1 indicating significant accumulation of trace metals from wastewater. However, BAF was \1 in Cr suggesting that A. latus could absorb trace metals from multiple sources over lengthy exposure period and not necessarily from wastewater containing rich Cr levels. Thus, the present findings validate A. latus as bioindicator to pollution more authentically by numerical simulation, toxicity and bioaccumulation tests compared to the traditional method of labeling A. latus as a pollution indicator.

show abstract

Section: Resultsmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Dispersion model and bioaccumulation factor validating trace metals in sea bream inhabiting wastewater drain outfalls

Bu-Olayan

Thomas

2013

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Al, a major constituent of aluminosilicate minerals, is a typical terrigenous element. Natural sources of Cr, Hg, Pb, and Zn in sediments were reported in several studies (Cox and Preda, 2005;Ip et al, 2007;Özkan, 2012;Dou et al, 2013;Hu et al, 2013;Omar et al, 2015;Xu et al, 2016;Belhadj et al, 2017;Zhao et al, 2017;El-Sorogy et al, 2020;Sun et al, 2020;Perumal et al, 2021;Tang et al, 2022). The correlation matrix (Table 5) highlights that Al and Cr are inversely correlated with h and CaCO 3 (-0.80 ≤ r ≤ -0.35).…”

Section: Element Concentrations In Surface Sediments and Potential Co...mentioning

confidence: 77%

“…Fertilizers and pesticides from agricultural runoff can determine high concentrations of As, Cu, Ni, Pb, and Zn in surface sediments (Cox and Preda, 2005;Selvam et al, 2012;Remeikaite-Nikienėet al, 2018;Vasiliu et al, 2020;Lin et al, 2021;Tang et al, 2022). As, Cr, Cu, Hg, Pb, and Zn derive from untreated/poorly treated wastewater discharges (Adamo et al, 2005;Cox and Preda, 2005;Selvam et al, 2012;Özkan, 2012;Vasiliu et al, 2020;Tang et al, 2022), whereas Ni, Pb, and Zn originate from waterborne transport (Cox and Preda, 2005;Selvam et al, 2012;Özkan, 2012;Tang et al, 2022). Anti-fouling paint used for ships is an important anthropogenic source of Cu and Zn (Cox and Preda, 2005;Lin et al, 2021).…”

Section: Element Concentrations In Surface Sediments and Potential Co...mentioning

confidence: 99%

“…Consequently, the sediment grain size and TOC content had a significant influence on the distribution of As, Cu, Hg, Ni, Pb, and Zn in surface sediments. Numerous studies in the related literature reported that clay, silt, and organic matter particles are important carriers of TEs in sediments (Rubio et al, 2000;Vaalgamaa and Korhola, 2004;Selvam et al, 2012;Özkan, 2012;Dou et al, 2013;Hu et al, 2013;Xu et al, 2016;Zhao et al, 2017;Perina et al, 2018;Remeikaite-Nikienėet al, 2018;Sun et al, 2020; Values of Pearson correlation coefficient (r) highlighted in bold are different from 0 with a significance level a = 0.05. Wang et al, 2021;Zhou et al, 2022).…”

Section: Element Concentrations In Surface Sediments and Potential Co...mentioning

confidence: 99%

See 1 more Smart Citation

Spatial distribution of trace elements and potential contamination sources for surface sediments of the North-Western Black Sea, Romania

Bucşe,

Pârvulescu,

Vasiliu

et al. 2024

Front. Mar. Sci.

View full text Add to dashboard Cite

It is essential to determine the concentrations of metals/metalloids in marine sediments and their contamination status to develop appropriate pollution control strategies and/or improve existing ones. Spatial distribution of aluminum (Al) and some trace elements, i.e., arsenic (As), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb), and zinc (Zn), accumulated in surface sediments of the north-western (NW) Black Sea (Romanian zone) was evaluated. Sediment samples were collected in 2019 from 32 stations located at water depths in the range of 12.7–149 m. The mean values ± standard deviations (SD) of element concentrations were as follows: 3.9 ± 1.6% for Al, 11.2 ± 10.2 mg/kg for As, 64.8 ± 27.0 mg/kg for Cr, 32.7 ± 15.0 mg/kg for Cu, 0.10 ± 0.09 mg/kg for Hg, 45.3 ± 23.8 mg/kg for Ni, 24.6 ± 9.6 mg/kg for Pb, and 68.0 ± 28.0 mg/kg for Zn. These values are not significantly different (p > 0.05) from those found in a previous study on surface sediments collected in 2018 from 22 stations located in the same area, but at lower water depths (13.5–67 m). Contamination factor (CF) was used to assess the contamination status of surface sediments. The mean values of CF (0.26–1.23) reveal low to moderate contamination with Pb and low contamination with the other elements. Principal component analysis (PCA) and correlation analysis indicated that As, Cu, Ni, Hg, Pb, and Zn were associated with clay, silt, and organic matter, suggesting that these elements mainly came from the Danube discharges and also from local anthropogenic sources, whereas Al, Cr, and partly Hg, Pb, and Zn originated from rock/soil weathering and erosion. The concentration levels of As, Cu, Hg, Ni, Pb, Zn, TOC, silt, and clay were higher in sediments collected from stations generally located at higher water depths (up to 118 m), suggesting that the TEs associated with the finer carriers were transported offshore by currents and waves, whereas the concentration levels of Al, Cr, Hg, and Zn were higher in sediments with lower levels of CaCO3 content (10.1–24.3%), collected from shallower stations (water depths of 12.7–42.0 m).

show abstract

Distribution of Heavy Metals, Organic Matter and Mean Size in Sediment at the Perlis River

Fadzilah

Tajam

Kamal

et al. 2013

From Sources to Solution

View full text Add to dashboard Cite

Untitled

Cited by 36 publications

References 33 publications

Dispersion model and bioaccumulation factor validating trace metals in sea bream inhabiting wastewater drain outfalls

Dispersion model and bioaccumulation factor validating trace metals in sea bream inhabiting wastewater drain outfalls

Spatial distribution of trace elements and potential contamination sources for surface sediments of the North-Western Black Sea, Romania

Distribution of Heavy Metals, Organic Matter and Mean Size in Sediment at the Perlis River

Contact Info

Product

Resources

About