Trace element levels in some commercially valuable fish species from coastal waters of Mediterranean Sea, Egypt

Abdallah, Maha Ahmed Mohamed

doi:10.1016/j.jmarsys.2007.09.006

Cited by 59 publications

(33 citation statements)

References 19 publications

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“…Trace element contamination in the marine environment has received increasing attention worldwide due to its persistence, toxicity depending on the oxidation state, nonbiodegradable nature and ability to bioaccumulate and biomagnify (Abdallah, 2008;Islam et al, 2015). Like other elements, trace elements exist at natural levels in the earth's crust derived from shales, sandstones, metamorphic and igneous rocks, as well as pollutants from human activity.…”

Section: Introductionmentioning

confidence: 99%

Trace elements in an adjacent channel of an anthropized area: a case study of Baixada Santista, Southeastern Brazil

Salaroli¹,

Kim²,

Angeli³

et al. 2024

Ecotoxicol. Environ. Contam.

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In recent decades, due to intensive industrialization, the Baixada Santista has undergone an intense process of environmental degradation. The metals are toxic and persistent in varying concentrations and oxidation states and may be incorporated in sediments and biota. Thus, understanding the importance of this contamination is necessary for coastal planning. This study provides a basis for understanding the levels of metal and As contamination in the Bertioga Channel (SP). The levels of Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Sc, V and Zn in superficial sediment samples were determined by ICP-OES. The degree of sediment contamination was evaluated according to the sediment quality standards set by the Canadian environmental agency (ISQG and PEL) and by statistical tests. All values were below PEL, and most of the sample values were below ISQG, except for As, Cu and Pb. From a cluster analysis, it was possible to differentiate eastern and western parts of the channel due to their distinct hydrodynamic patterns. Furthermore, it was possible to separate the trace elements by geochemical behavior, in which Cu, Pb and Zn were linked to a small anthropogenic contribution. Thus, this study detected small anthropogenic contributions from an adjacent channel of an anthropized area, but most of the results were linked to natural geochemical processes.

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Section: Introductionmentioning

confidence: 99%

Trace elements in an adjacent channel of an anthropized area: a case study of Baixada Santista, Southeastern Brazil

Salaroli¹,

Kim²,

Angeli³

et al. 2024

Ecotoxicol. Environ. Contam.

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“…Pb is used in a number of industrial applications and has been used as an anti-knocking additive in gasoline and is deposited following combustion (Junior et al, 2002). Pb ranks as the metal of largest diffusion through the atmosphere (Abdallah, 2008). Industrial and domestic waste-waters containing Cd (and other metals such as Cu and Zn) were considered as major sources of these metals (Belabed et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Distribution and assessment of heavy metals in the aquatic environment of Lake Manzala, Egypt

El-Kady

Sweet

Wade

et al. 2015

Ecological Indicators

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“…For comparison to the data mentioned as dry weight, they were converted to wet weight using a factor 0.3; since moisture is usually about 70% in muscle 59 . In this study in reservoirs and zones and for both fish species the Hg concentration detected exceeds the standard, with maximum values of 6.75 and 7.41 µgg -1 wet weight for silverside in affluent of Cogotí and affluent of Rapel, respectively, in high flow season, and 5.58 µgg -1 wet weight in the affluent of Recoleta, while As in most of dams and zones and for both fish species exceeded Commission of the European Communities, FAO/WHO and ANZFA rules with higher values in the low flow season.…”

Section: Regulation and Toxicitymentioning

confidence: 99%

Distribution of Arsenic and Mercury in the Aquatic Ecosystem of the Five Chilean Reservoirs

Copaja

Nuñez

Véliz

2016

J. Chil. Chem. Soc.

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Arsenic and mercury are among the metals and metalloids more toxic to the ecosystem. A quantification method by atomic absorption spectroscopy with hydride generator (AAS-HG) to determine total As and cold steam to determine Hg was optimized and validated in various matrices: superficial water, interstitial or pore water, sediments and in gill, liver and muscle of two fish species, a silverside (Basilichthys microlepidotus) and a catfish (Trichomycterus areolatus). The quality of the results was tested using certified reference materials (Water: ERM-CA615; Fish: DOLT-4; Sediment: BCR-320R). Samples were collected in the affluent and effluent of five reservoirs: Cogotí (31º00'S, 71º05'W); Corrales (31º54ºS, 70º54'W); La Paloma (30º44'S, 71º00'W); Rapel (34º08'S, 71º29'O); Recoleta (30º28'S, 71º06'W). ), in two campaigns during high flow (winter 2010) and low flow (summer 2011).The results show a clear difference in the distribution of As and Hg in the different matrices; higher concentrations were found in the order sediment ˃ interstitial water ˃ surface water. Catfish showed higher accumulation of both metals, and metal concentrations generally decreased in the order liver > gill > muscle. No significant effect of reservoirs and zones was observed in As and Hg content. However, Arsenic (As) was found in higher concentration in the different matrices of the five reservoirs and zones. The concentrations of As and Hg in all samples did not exceed international standards in the case of sediment and the Chilean norm in the case of water, while in both fish species concentrations of As and Hg in muscle exceeded international standards.

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Trace element levels in some commercially valuable fish species from coastal waters of Mediterranean Sea, Egypt

Cited by 59 publications

References 19 publications

Trace elements in an adjacent channel of an anthropized area: a case study of Baixada Santista, Southeastern Brazil

Trace elements in an adjacent channel of an anthropized area: a case study of Baixada Santista, Southeastern Brazil

Distribution and assessment of heavy metals in the aquatic environment of Lake Manzala, Egypt

Distribution of Arsenic and Mercury in the Aquatic Ecosystem of the Five Chilean Reservoirs

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