Geographical information systems based ecological risk analysis of metal accumulation in sediments of İkizcetepeler Dam Lake (Turkey)

Fural, Şakir; Kükrer, Serkan; Cürebal, İsa

doi:10.1016/j.ecolind.2020.106784

Cited by 31 publications

(8 citation statements)

References 34 publications

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“…The Cf may be sequenced as Cd > Fe > Pb > Mn > Cu > Cr according to the lithologic background values. Contaminations of Cu, Zn, Fe and Mn ascribed with anthropogenic activities such as fertilizers and pesticides [16]. The overall PLI values from the sediment indicated slight heavy metal pollution (1 ≤ PLI < 2) at each sampling site along the course of the river with the highest value observed at M2.…”

Section: Heavy Metals Concentrations In the Surface Sediment Of Megec...mentioning

confidence: 95%

“…Ecological risk indices such as geo-accumulation index (Igeo), contamination factor (CF), pollution load index (PLI) and others are essential to distinguish the natural and anthropogenic sources of heavy metals and to determine the extent of the ecological risk by providing a robust and reliable result [16]. The ecological and health-related impacts of heavy metal pollution are alarming in developing countries including Ethiopia where aquatic ecosystems receive about 80% of untreated wastewater due to the absence or inefficiency of treatment plants [5,10,17].…”

Section: Introductionmentioning

confidence: 99%

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Heavy Metal Distribution in Surface Water and Sediment of Megech River, a Tributary of Lake Tana, Ethiopia

2022

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Excess heavy metal concentrations caused by severe anthropogenic activities are among the major threats of aquatic pollution in developing countries like Ethiopia. So far, there is limited information regarding concentrations of selected toxic heavy metals in the freshwater bodies of northern Ethiopian highlands. Therefore, this study aimed to assess the current status and spatial distributions of heavy metals in water and sediment samples of the Megech River located in the North Gondar zone of the Amhara region from November 2018 to January 2019. Six different sampling sites (M1–M6) were identified based on the anthropogenic influence. A total of 30 water and 30 sediment samples were collected along the course of the river. Results revealed that concentrations of Cu (0.11 to 0.17 mg L−1), Zn (0.11 to 0.16 mg L−1) and Cr (0.03–0.05 mg L−1) in the water were within international guidelines for domestic use. In the sediment, maximum concentrations of heavy metals detected at site M2 were within the recommended sediment quality guideline for aquatic systems. Generally, higher concentrations of heavy metals were observed at sites with higher anthropogenic activity (M2). Therefore, continuous monitoring and seasonal studies with representative samples including benthic organisms and macrophytes are needed to quantify the impact on downstream sections.

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Section: Heavy Metals Concentrations In the Surface Sediment Of Megec...mentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Heavy Metal Distribution in Surface Water and Sediment of Megech River, a Tributary of Lake Tana, Ethiopia

2022

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“…Assessment of ecological risk primarily covers hazard assessment, exposure assessment, receptor analysis and risk characterization. Studies concentrated on the spatial distribution, temporal change, quantitative characteristics, spatial differentiation and regional division of ecological risks [79][80][81].…”

Section: Introductionmentioning

confidence: 99%

Spatial pattern of the ecological environment in Yunnan Province

Wang

Ding

2021

PLoS ONE

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Ecological science focuses on the structure and function of the natural environment. However, the study of ecological environments primarily focuses on single-element research and lacks a comprehensive perspective. To examine ecological environmental trends on different scales, the present paper selected Yunnan Province as the study area. Chemical oxygen demand, rocky desertification, forest coverage, natural disaster data and spatial analysis methods were used to obtain the ecological environmental characteristics of each county and construct a comprehensive evaluation method of the ecological environment. The present paper revealed that the environmental capacity in Yunnan Province was at a moderate level, the ecological environment fragility was remarkable, the significance of the ecological environment was very high, natural disasters occurred frequently, and spatial differentiation between ecological environments was obvious. The province may be divided into three functional areas: the comprehensive-balanced area, the efficiency-dominated area and the environment-dominated area. Central Yunnan was a key development zone and the main area for the manufacturing and service industries, which were built as a modern industrial system in Yunnan Province. The ecological environment in northwestern Yunnan and southern Yunnan is of high significance, and this region was an ecological environment protection area that was important area for the construction of the modern agricultural system in Yunnan Province. To achieve sustainable development of the ecological environment, the spatial characteristics of the ecological environment must be determined at the county scale.

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“…The EF and Igeo indexes are employed as indicators to identify and quantify the degree of elemental pollution, as well as to evaluate the intensity of anthropogenic contaminants collected in sediment (Looi et al, 2019;Barbieri, 2016). To date, numerous studies have used the EF and Igeo to assess the contribution of anthropogenic inputs of elements in sediment (Özkan, 2012;Özkan and Büyükışık, 2012;Kaya et al, 2017;Kükrer et al, 2020;Fural et al, 2020;Fural et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Seasonal and Spatial Variations of Ecological Risk from Potential Toxic Elements in the Southern Littoral Zone of İzmir Inner Gulf, Turkey

Özkan

Fural

Kükrer

et al. 2021

Preprint

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This study aimed to investigate the ecological risk level of İzmir Inner Gulf. Based on the findings, port, industry, settlement and transportation activities generated Mo, Pb, Cu, Cd, Zn enrichment. Modified hazard quotient (MHQ) point to a high level of pollution and toxic effects for Ni and Cr; significant pollution and toxic effects for As and Hg, and moderate pollution and toxic effects for Pb, Zn, Cu. According to the ecological contamination index (ECI), the inner gulf is significantly-highly polluted. Toxic risk index (TRI) and potantial ecological risk index (PERI) are also consistent with these data. According to the ECI, the inner gulf is significantly/highly polluted. TRI and the PERI are also consistent with these data. Cd has created a significant ecological risk in all seasons due to its high toxicity. Cu and Pb have caused moderate ecological risk in local areas near the port. A moderate potential ecological risk has been identified in all seasons throughout the inner gulf.

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Geographical information systems based ecological risk analysis of metal accumulation in sediments of İkizcetepeler Dam Lake (Turkey)

Cited by 31 publications

References 34 publications

Heavy Metal Distribution in Surface Water and Sediment of Megech River, a Tributary of Lake Tana, Ethiopia

Heavy Metal Distribution in Surface Water and Sediment of Megech River, a Tributary of Lake Tana, Ethiopia

Spatial pattern of the ecological environment in Yunnan Province

Seasonal and Spatial Variations of Ecological Risk from Potential Toxic Elements in the Southern Littoral Zone of İzmir Inner Gulf, Turkey

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