Geochemical and Statistical Approach for Assessing Heavy Metal Accumulation in the Southern Black Sea Sediments

Özkan, Ebru Yeşim; Büyükışık, Baha

doi:10.5053/ekoloji.2012.832

Cited by 49 publications

(14 citation statements)

References 38 publications

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“…The geo-accumulation index (Igeo) is a common criterion used for quantifying the intensity of heavy metal contamination in terrestrial, aquatic and marine environments (Gaur, Sanjay, Pandey, Gopal, & Misra, 2005;Ozkan & Buyukisik, 2012;Tijani & Onodera, 2009). This index is a single metal approach to evaluate the sediment contamination with heavy metals.…”

Section: Geo-accumulation Index (Igeo)mentioning

confidence: 99%

Evaluation of heavy metal content in Qaroun Lake, El-Fayoum, Egypt. Part I: Bottom sediments

El-Sayed

Moussa

El-Sabagh³

2015

Journal of Radiation Research and Applied Sciences

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Available online xxx Keywords:Qaroun Lake sediments Grain size Heavy metals Igeo Cf and Cd contamination indices a b s t r a c t This paper was undertaken in order to assess the extent of contamination in bottom sediments of Qaroun Lake, El-Fayoum, Egypt. Sediment samples were analyzed for grain size distribution and heavy metals concentration. Ten heavy metals were determined (in ppm) by X-Ray Fluorescence Spectrometry. The average concentration values in sediments are 2.99 (As), 124.89 (Cr), 38.91(Cu), 14.21 (Pb), 54.74 (Ni), 58.76 (Zn), 3.27 (Sn), 6.77 (Mo), 162.77 (V) and 11.70 (Co). Most of these metals are found with high concentrations in the eastern part of the lake, comparing with them in sediments of the central and western parts. The impact of drains effluents on the lake sediment-metals content is revealed. The dependence of concentrations on the sediment grain size is examined and high correlations between silt and clay-sized grains and the concentrations of Cr, Cu, Ni and Mo are deduced (R ranges from 0.61 to 0.73). Potential contamination of the lake is assessed using the contamination indicators, the geo-accumulation index, Igeo and contamination factor,Cf and the degree of contamination, Cd. Based on the obtained results, it is concluded that the lake sediments are found in contamination conditions. They are moderately contaminated with Cr, Mo, V and Co metals.

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Section: Geo-accumulation Index (Igeo)mentioning

confidence: 99%

Evaluation of heavy metal content in Qaroun Lake, El-Fayoum, Egypt. Part I: Bottom sediments

El-Sayed

Moussa

El-Sabagh³

2015

Journal of Radiation Research and Applied Sciences

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“…Shale values of some metals were given by Krauskopf (1985), and used to calculate the Ef values. The Ef is used as an index to evaluate anthropogenic and natural sources (Özkan and Buyukisik, 2012). The Ef values of the elements in the sediments at all of the stations were calculated for each metal using the equation by Salati and Moore (2010), as follows:…”

Section: Enrichment Factormentioning

confidence: 99%

Assessment of element concentrations in surface sediment samples from Sığacık Bay (eastern Aegean)

Bakak¹,

Küçüksezgi̇n²,

Özel³

2020

Turkish J Earth Sci

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Concentrations of Al, Fe, As, Co, Cr, Cu, Mn, Ni, Pb, Zn, Hg, and organic carbon, and grain size distribution were investigated in the surface sediments of 7 sampling stations in the Sığacık Bay (western Anatolia) in December 2016. At all of the sampling stations, the concentrations of Pb, Ni, Cr, and As were higher than the average shale values. The highest concentrations of Pb, Cu, Zn, As, and Hg were found at stations near Doğanbey Cape. The possible sources of pollution were evaluated using several parameters: the enrichment factor (Ef), contamination factor (Cf), and contamination degree (Cd). The Ef values ranged between 0.12 and 7.61 in the bay. The high Ef (>1.5) values of Pb, Cu, Ni, Co, and As were assessed to explain the influence of anthropogenic sources. Additionally, the Cf values ranged from 0.46 to 5.61, while the Cd values ranged from 11.69 to 20.45 in the study area. The Cd of the Cr and As ranged between moderate and considerable, and the highest Cd was measured at stations near Doğanbey Cape. Additionally, the pollution degrees were assessed using sediment quality guidelines (SQGs), the threshold effect level (TEL), the probable effect level (PEL), the effects range low (ERL), and the effects range median (ERM). It was demonstrated that the sediments were generally heavily polluted with Cr and Ni, and moderately with Pb and Cu, according to the numerical SQGs. The concentrations of Pb, Cr, Cu, Zn, and Ni were above the TEL, while Cr and Ni were also higher than the PEL levels for all of the samples.

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“…The heavy metals are continuously accumulated in the rivers and deposited in the marine sediment as a sink. The major issues related with the persistence of heavy metals are toxicity, bioaccumulation, and biomagnification which lead to indelible effects on the ecosystem, human health, and other living organisms [1,[5][6][7][8][9]. Therefore, it is essential to assess the distribution of these pollutants and their level of contamination to construe the mechanism of accumulation and transportation of these pollutants into the aquatic environment as well as obtain necessary information for the supervision, maintenance, and use of coastal areas.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal pollutants and their spatial distribution in surface sediments from Thondi coast, Palk Bay, South India

Perumal

Antony

Subagunasekar

2021

Preprint

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Background The concentration of heavy metals and their spatial distribution in surface sediments collected from the Thondi coast, Palk Bay, South India were analysed in this study. The sediment grain size, pH, EC, and heavy metal concentrations (Mn, Fe, Cr, Zn, Cd, Ni, Cu, and Pb) were determined and the values for the geoaccumulation index (Igeo), enrichment factor (EF), potential contamination index (Cp), potential ecological risk index (PERI), contamination factor (CF), modified contamination degree (mCd), degree of contamination (Cd), and potential contamination factors (Cp) were calculated based on their background values to determine the pollution level of the study area. The sediment grain size, pH, EC, and heavy metal concentrations were determined and the values for the pollution indices were calculated based on their background values to determine the pollution level. Results The pollution indices, namely EF, CF, Cd, mCd, CP, \({\text{E}}_{\text{r}}^{\text{i}}\), and PERI, except for Igeo, revealed that the heavy metal contamination was due to Cd, while a moderate level of contamination was caused by Cu, Zn, Pb, and Cr. The principal component analysis and correlation matrix analysis showed a strong positive loading for Cd due to its high level of contamination in the study area. Anthropogenic inputs such as municipal wastewater, domestic sewage discharge, fishing harbour activities, and industrial and aquaculture wastes led to the increased Cd concentration in the study area. Moreover, the pollution load index revealed that the sediments were polluted by heavy metals. Conclusion The findings of this study revealed that the increased concentration of heavy metals in the study area increases the toxicity in the marine environment, thus affecting the ecosystem.

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Geochemical and Statistical Approach for Assessing Heavy Metal Accumulation in the Southern Black Sea Sediments

Cited by 49 publications

References 38 publications

Evaluation of heavy metal content in Qaroun Lake, El-Fayoum, Egypt. Part I: Bottom sediments

Evaluation of heavy metal content in Qaroun Lake, El-Fayoum, Egypt. Part I: Bottom sediments

Assessment of element concentrations in surface sediment samples from Sığacık Bay (eastern Aegean)

Heavy metal pollutants and their spatial distribution in surface sediments from Thondi coast, Palk Bay, South India

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