Distribution, sources and ecological risk assessment of metals in Kura river sediments along a human disturbance gradient

Kükrer, Serkan; Tunç, İsmail Onur; Ergi̇nal, Ahmet Evren; Bay, Özender; Kılıç, Sevtap

doi:10.1080/15275922.2021.1940378

Cited by 8 publications

(2 citation statements)

References 42 publications

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“…In the formula; Cx represents element concentration and Cn represents the element (Al) concentration used in geochemical normalization. BX is the background value of the element and Bn is the background value of Al selected for normalization (Sutherland 2000;Bo et al, 2015;Kükrer et al, 2021). The minimum element concentrations in the core slices after geochemical normalization were used as background values.…”

Section: Methodsmentioning

confidence: 99%

GIS Analysis of spatial-temporal variation of the ecological risk caused by element and organic pollutants in Lake Marmara (TURKIYE)

Fural

2023

International Journal of Environment and Geoinformatics

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Located in western Anatolia (Turkey), Lake Marmara is a wetland with high ecological value. Lake Marmara, which was exposed to intense anthropogenic effects after 1940, is experiencing ecological deterioration in recent years. This study aimed to analyze the ecological risk level of the lake by using Enrichment Factor (EF), Toxic Risk Index (TRI), Modified Potential Ecological Risk Index (mER) etc. The research hypothesized that the discharge of water from the Gediz River and Kum Stream to the lake after 1940 triggered ecological risk problems. Moderate toxic risk, low potential ecological risk, moderate element contamination were detected throughout the lake. It was determined that Mo, P and Hg of anthropogenic origin and As, Ni, Cr, Cu of lithological origin created ecological risk at a regional scale. Domestic-industrial wastes and agriculture in the Gediz River basin and around the lake were identified as the dominant anthropogenic activity. The temporal variation of the ecological risk indices based on the elements did not reflect the anthropogenic traces of water discharge into the lake from the Gediz River basin. However, the temporal variation of TOC, N, P and CDP showed the effects of anthropogenic interventions in the lake. According to the threshold values; P is highly contaminated and N is close to the severely contaminated limit. The findings, while confirming the research hypothesis, showed that the dominant ecological risk factor in Lake Marmara is not elemental contamination, but organic pollutants, nitrogen and phosphate.

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Section: Methodsmentioning

confidence: 99%

GIS Analysis of spatial-temporal variation of the ecological risk caused by element and organic pollutants in Lake Marmara (TURKIYE)

Fural

2023

International Journal of Environment and Geoinformatics

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“…Thus, since metals cannot be metabolized easily in living organisms, they accumulate in soft tissues over time and can cause serious health problems by being carried into the food chain (Saha et al, 2017). Therefore, the concentrations of elements such as Cd, Pb, Zn are frequently studied and monitored to avoid their adverse effects on ecosystem and public health (Shahabi-Ghahfarokhi et al, 2021) As all over the world, there are ecological risks arising from the accumulation of heavy metals due to human influence in the rivers and ports that are exposed to the sediment load of the rivers in Türkiye (Aksu, 1998;Bakan and Özkoç, 2007;Karadede-Akın and Ünlü, 2007;Doğan-Sağlamtimur et al, Subaşı, 2018;Varol, 2011;Ustaoğlu andTepe, 2018, 2019;Eker, 2020;Ustaoğlu et al, 2020aUstaoğlu et al, , 2020bAkarsu et al, 2022;Kükrer et al, 2022;Ustaoğlu and Islam, 2020;Ustaoğlu, 2021). These ecological risks form part of a wide variety of anthropogenic processes throughout the country during the Anthropocene (Cürebal et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Toxic Metal-Induced Ecological Risk in Kepez Stream, Çanakkale, Türkiye

ÇAVUŞ

Kükrer

SAĞLAM

et al. 2023

International Journal of Environment and Geoinformatics

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Ecological risk in the mouth of Kepez Stream has recently increased notably due to waste from the Kepez settlement, agricultural activity in the Kepez delta, maritime traffic in the Çanakkale Strait, and summer houses in the coastal area. This study analyzed the ecological risk of 10 sediment samples along the bed in the mouth of Kepez Stream to shed light on anthropogenically induced pollution. The pollution proxies such as chlorophyll degradation products, heavy metal concentrations and organic carbon of the sediment samples were determined. Enrichment Factor (EF), Contamination Factor (CF), Geoaccumulation Index (Igeo) and Potential Ecological Risk Index (PER) were calculated from the results obtained. Spearman's correlation analysis and factor analysis were also performed. The obtained data show that there is moderate enrichment of Zn, As and Co, a significant level of Pb, and very high level of Cr in the sediments of Kepez Stream. Ni enrichment was determined to be excessive and poses a high potential ecological risk. Cleaning and rehabilitation need to be carried out urgently in the mouth of Kepez Stream. It should be determined whether metals are being transmitted to aquatic organisms, and measures should be taken to reduce the sources of pollution.

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Spatial–temporal distribution and pollution indices of heavy metals in the Turnasuyu Stream sediment, Turkey

Tepe

Şimşek

Ustaoğlu

et al. 2022

Environ Monit Assess

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Distribution, sources and ecological risk assessment of metals in Kura river sediments along a human disturbance gradient

Cited by 8 publications

References 42 publications

GIS Analysis of spatial-temporal variation of the ecological risk caused by element and organic pollutants in Lake Marmara (TURKIYE)

GIS Analysis of spatial-temporal variation of the ecological risk caused by element and organic pollutants in Lake Marmara (TURKIYE)

Analysis of Toxic Metal-Induced Ecological Risk in Kepez Stream, Çanakkale, Türkiye

Spatial–temporal distribution and pollution indices of heavy metals in the Turnasuyu Stream sediment, Turkey

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