Determination of Some Heavy Metal Pollutants in Sediments of the Seybouse River in Annaba, Algeria

Louhi, A.; Hammadi, Atika; Achouri, M.

doi:10.4137/aswr.s10081

Cited by 24 publications

(9 citation statements)

References 18 publications

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“…Hammadi et al (2010) found that the concentration of heavy metals in water of surface greatly exceed the standards of the European Union (1998). Louhi et al, (2012) reported in their work that the average concentration of metallic elements exceed acceptable standards for heavy metal pollution of sediments. The fishing Port of Annaba is one of the ten main commercial ports of Algeria.…”

Section: Discussionmentioning

confidence: 98%

Heavy metal contamination of Diplodus vulgaris (Sparidae) in the Gulf of Annaba (North-eastern Algeria)

Feknous¹,

Boumendjel²,

Abdenour³

et al. 2022

EEC

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The aim of this work was to evaluate heavy metals (Lead and Cadmium) contamination in the muscles ofa local sea fish species, the black-headed Sar Diploddus vulgaris. We selected two sites in the Gulf of Annabafor this study (Sidi Salem fishing site and the Port of Annaba) and compared results to a reference site (Capde Garde), which is at a valuable distance from any source of pollution, and is considered as a relativelyclean site, while Sidi Salem and Port of Annaba are known to be exposed sites to various sources of industrial,urban and harbor pollution. Analyses have been carried out on 70 samples of dorsal-lateral muscles offishes weighting from 30 g to 280 g and sizing between 11.1 cm to 26.5 cm. The results showed the presenceof both metals in all samples during the 6 months of our study (from November to June) and in the 3 siteswith variable rates. Cadmium levels varied from 0.032 to 0.239 mg/kg/fw. Fish meat from Sidi Salem collectedduring the months of November and February displayed a rate of 0.038-0.074 mg/kg/fw of Cd beforereaching a higher value in March estimated to 0.202 mg/kg/fw of Cd. From April to June, the lateral dorsalmuscles were contaminated by lower Cd contents. Pb concentrations varied from 0.014 to 0.149 mg/kg/fw.The highest value was recorded during the month of March at Sidi Salem. Moreover, Pb concentrations inmuscle tissues increased significantly compared to the other studied sites. Very high significance differenceswere found between Cap de Garde and Port of Annaba and Sidi Salem for both metals (Pb and Cd). Toconclude, the presence of heavy metals in Diplodus vulgaris is due to the diet and the impact of anthropogenicactivities on the biotope of the fish and therefore poses a public health problem linked to frequentconsumption of this fish. Also, D. vulgaris appears to be a suitable sentinel species for the assessment ofecotoxicological risk in the Gulf of Annaba.

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Section: Discussionmentioning

confidence: 98%

Heavy metal contamination of Diplodus vulgaris (Sparidae) in the Gulf of Annaba (North-eastern Algeria)

Feknous¹,

Boumendjel²,

Abdenour³

et al. 2022

EEC

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“…The sample was heated in a sand bath on a hot plate to 50 °C for 5 hours and refluxed at 130 °C for 3 hours. The samples were filtered, washed with doubly distilled water, and placed in 50 mL volumetric flasks (Louhi, Hammadi, & Achouri, 2012).…”

Section: Sediment Sampling and Digestionmentioning

confidence: 99%

Bioavailability of heavy metals in surface sediment of Anzali International Wetland, Iran

Amini¹,

Hatami-manesh²,

Aazami

et al. 2022

Preprint

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The study aimed to determine the metal concentration, mobility, bioavailability, ecological risk, and toxicity in the surface sediment of Anzali International Wetland. Pb, As, Cd, Cr, Ni, Zn, and Fe Concentrations in 33 samples are reported here. A five-step sequential extraction technique was used to determine the chemical forms of metals. To assess ecological risk (Er), Risk Index (RI), Toxic Unit (TU), the sum of Toxic Units (ΣTUs), Toxic Risk Index (TRI), and modified Hazard Quotients (mHQ) were calculated. Mean concentrations of heavy metals (mean ± S.D.) were Zn (95.46±20.71) > Cr (19.79±2.79) > Ni (18.49±5.23) > Pb (13.97±3.20) > As (6.45±1.87) > Cd (0.90±0.34). Cd exhibited the highest mobility and bioavailability, while Cr, Pb, Zn, Ni, and As, were found mainly in residual fractions, which are non-bioavailable and pose a little ecological risk. Cd showed the highest levels in the reducible and organic phases; Cr, Pb, Zn, and Ni had the lowest ones. Ecological risk assessment suggested that Cd had “moderate” to “considerable” risk potential at some sampling sites. Risk index indicated that Anzali sediment had “low” to “moderate” risk potential (150 < RI < 300). Based on values of RI, ∑TUs, and mHQ we conclude that sediment of Anzali Wetland has low to moderate risk potential and low toxicity.

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“…On cooling, the digest was filtered into a 100.0 ml volumetric flask and made up to the mark with distilled water. Blanks were prepared to check for background contamination by the reagents used (Louhi et al, 2012).…”

Section: Digestion and Determination Of Heavy Metalsmentioning

confidence: 99%

“…The spectral range extends at least from 180 to 900 nm. Quality control was based on the use of standard metal solutions and duplicate analysis (Louhi et al, 2012).…”

Section: Determination Of Heavy Metalsmentioning

confidence: 99%

Identifying the potential of some heavy metals toxicity in urban and peri-urban cropping systems in Sierra Leone

Conteh¹,

Samura²,

Hinckley³

et al. 2017

J. Agric. Sci. Pract.

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As an essential coping strategy for providing the vital augmentation of food stocks in urban centers, there has been a considerable expansion of urban and peri-urban agriculture in Sierra Leone since the end of the civil war in 2002. In many of these urban and peri-urban cropping sites, sources of water are usually polluted by urban wastes posing potential risk of heavy metal toxicity. This study was carried out to determine the risks associated with heavy metal contamination in urban and peri-urban cropping systems in Sierra Leone. Soil and plant samples were collected from 72 sites from the largest and second largest cities, Freetown and Bo. The samples were analyzed for Zn, Cu, Cr, Ni, Pb and Cd, and the results compared to established reference values. Heavy metals were detected across all sites, with highest concentrations found in Freetown. Values obtained were mostly below the reference values for both soil and plant samples. Some mild risk of toxicity by Cd was observed in densely populated areas of Freetown, but this was not reflected in the plant uptake of Cd. In general, the risk posed by heavy metals in the urban centers of Sierra Leone is minimal, but measures should be taken to prevent further increase in heavy metal concentration in urban cropping sites.

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Determination of Some Heavy Metal Pollutants in Sediments of the Seybouse River in Annaba, Algeria

Cited by 24 publications

References 18 publications

Heavy metal contamination of Diplodus vulgaris (Sparidae) in the Gulf of Annaba (North-eastern Algeria)

Heavy metal contamination of Diplodus vulgaris (Sparidae) in the Gulf of Annaba (North-eastern Algeria)

Bioavailability of heavy metals in surface sediment of Anzali International Wetland, Iran

Identifying the potential of some heavy metals toxicity in urban and peri-urban cropping systems in Sierra Leone

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