Determination of heavy metal background concentration in bottom sediment and risk assessment of sediment pollution by heavy metals in the Hrazdan River (Armenia)

Petrosyan, Vahagn; Pirumyan, Gevorg; Perikhanyan, Yekaterina

doi:10.1007/s13201-019-0996-7

Cited by 20 publications

(10 citation statements)

References 11 publications

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“…This observation is at variance with the findings of this study. However, the relatively higher metal levels in the sediments compared to the water samples are in consonance with values reported by earlier workers in the Hrazdan River (Armenia) and Lishui River, southern China watershed systems [36] [48].…”

Section: Discussionsupporting

confidence: 91%

Quantification of Metal Contaminants and Risk Assessment in Some Urban Watersheds

Adeniyi¹,

Okedeyi²,

Sowemimo³

et al. 2020

JWARP

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Contamination by heavy metals is a serious threat to aquatic systems due to their level of toxicity at elevated levels. The pollution of urban watersheds is of particular concern because of its potential impact on the watershed ecosystem and the receiving larger water bodies. This study assessed the occurrence and distribution of cadmium, copper, nickel, lead and zinc in water and sediment samples collected from three urban watersheds in Lagos, Nigeria. The concentrations of metals were determined using atomic absorption spectrometry. The health risk index (HRI) of water usage was evaluated for both adults and children. HRI for cadmium and lead in some of the watersheds recorded HRI > 1 values, a cause for health concern. The pH of water ranged from 6.48 ± 0.28-6.54 ± 0.47 (2016) and 6.18 ± 0.56-6.53 ± 0.17 (2018) respectively while, for sediments, the pH values ranged from 6.14 ± 0.48-6.9 ± 0.15 and 5.38 ± 0.22-6.4 ± 0.38 for 2016 and 2018 respectively. The levels of metals in the water samples during the 2016 sampling cycle were found to be within the World Health Organization (WHO) guideline limits for drinking water. However, the 2018 cadmium, lead and zinc concentrations for Ira-Ipaye and Akesan watersheds exceed the WHO guideline limits. Cadmium was not detected in Ira-Ipaye and Akesan 2016 sediment samples. Statistical t-test and analysis of variance (ANOVA) were used to ascertain significant differences of metals concentration in the three watersheds. The pH and metal concentration values obtained for water and sediment for the year 2016 and 2018 were non-significantly different.

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Section: Discussionsupporting

confidence: 91%

Quantification of Metal Contaminants and Risk Assessment in Some Urban Watersheds

Adeniyi¹,

Okedeyi²,

Sowemimo³

et al. 2020

JWARP

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“…Instead, the subsurface layers (from 40 to 100 cm) exclusively represent the lithogenic contributions, since there is little probability of contamination through atmospheric deposition, and for this reason the subsurface horizon can be used to determine the local geochemical baseline [13]. In the hypothesis that it is not possible to carry out a subsurface soil horizon samples and the Regional Geochemical Baseline Mapping is not available, some studies [29][30][31] identify statistical methods (cumulative frequency and normalization method) as useful tools to define the geochemical baseline values. In order to assess the soil pollution status, some studies [28,[32][33][34][35][36] use some quantitative indexes: the geoaccumulation index (I geo ) and the enrichment factor (EF).…”

Section: Soil Pollution Status: the Definition Of Background Value (Bmentioning

confidence: 99%

“…In order to assess the soil pollution, it is necessary to define Geochemical Baseline Values in the study area. Some studies [29][30][31] have shown the need to use statistical methods to determine the geochemical baseline values. According to Zhou et al [29], the used statistical approach considers the combination between the cumulative frequency curve (CFD) and the normalization method through a linear regression.…”

Section: Geochemical Baseline Values Assessmentmentioning

confidence: 99%

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Assessment of trace elements natural enrichment in topsoil by some Italian case studies

2020

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Trace elements (for example As, V, Cr, Ni, Cu, Z, Cd and Pb) released by human activity are ubiquitously detected in topsoil. They can be conveyed from the topsoil to the ecosystem, thus affecting human health. Also, trace elements are not sensitive to any process of decomposition in soils and the bioavailability is complicated due to the reactive nature of soil constituent. The goal of this assessment is to present a methodology able to evaluate the topsoil trace elements natural enrichment and distinguish between geogenic phenomena and anthropogenic contributions. This paper presents some Italian case studies in Lombardy and Lazio. The potential pollution risks of trace elements in topsoil were evaluated by geoaccumulation index (I geo) and enrichment factor. The results show an absence of anthropogenic contamination, highlighting the need to consider the local characteristics (landfills, municipal solid waste plants, industrial areas, quarries, etc.). Moreover, a statistical method (cumulative frequency and normalization method) was presented to determine the geochemical baseline values. In the case of Borgo Montello (Lazio), manganese is used as a relative element due to its high presence in soils. The proposed geochemical baseline values of V, Cr, Co and Ni thorough normalization method were, respectively, 123.07, 82.10, 9.41 and 29.70 mg kg −1 , instead by cumulative frequency the results were 78.24, 84.10, 6.67 and 23.70 mg kg −1. This methodology shows a potential validity to define the geochemical baseline values, but it is necessary many data (n ≥ 40) and distributed homogeneously over the study area.

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“…The sedimentological approach is commonly used in ecological risk assessment of the aquatic environment [7][8][9]. However, one of its limitations is the absence of background concentrations due to lack of pristine (preindustrial) sediment environments devoid of anthropogenic contamination in most settings.…”

Section: Introductionmentioning

confidence: 99%

Trace elements in water, sediment and commonly consumed fish from a fish farm (NE Zimbabwe) and risk assessments

et al. 2020

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Limited information is available on trace element-water contamination and health risk assessment of small-scale intensive fish farming in low-income settings. Such information creates awareness among fish consumers, policy makers and the scientific community, regarding dietary exposure and health risks for not well-reported settings. The concentrations of potentially toxic trace elements in water, sediment and fish (T. rendalli, O. nitloticus and M. salmoides) were determined by spectrometry. The ecological and potential human health risks were assessed for Magobo dam, NE Zimbabwe, using the Hakanson ecological approach and the United States Environmental Protection Agency risk-assessment model, respectively. Concentrations in water and sediment appeared to increase in the order: cadmium < arsenic < lead. They restricted water use for irrigation and human consumption. The potential ecological risk factors for individual trace elements were below the index range for low risk. The potential ecological risk index for the dam (7.20) did not constitute ecological risk. The concentrations of trace elements in fish significantly varied with species, length and tissue (p < 0.05). The concentrations of arsenic and lead in gills, liver and muscle for O. niloticus and arsenic in M. salmoides were greater than international maximum permissible limits for fish. The target cancer risk due to dietary exposure to arsenic in the three fish species was in the range 10-6. There is no obvious cancer risk to the exposed population.

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Determination of heavy metal background concentration in bottom sediment and risk assessment of sediment pollution by heavy metals in the Hrazdan River (Armenia)

Cited by 20 publications

References 11 publications

Quantification of Metal Contaminants and Risk Assessment in Some Urban Watersheds

Quantification of Metal Contaminants and Risk Assessment in Some Urban Watersheds

Assessment of trace elements natural enrichment in topsoil by some Italian case studies

Trace elements in water, sediment and commonly consumed fish from a fish farm (NE Zimbabwe) and risk assessments

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