Assessment of heavy metal concentrations in water, plankton, and fish of Lake Manzala, Egypt

Bahnasawy, Mohamed H.; Khidr, A. A.; Dheina, Nadia

doi:10.3906/zoo-0810-6

Cited by 33 publications

(15 citation statements)

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“…Seasonal variations in metal concentrations in the fish liver and gonads were considerable. These findings are consistent with those of Eastwood and Couture (2002) and Bahnasawy et al (2011) who discovered seasonal fluctuations in metal content in fish organs and ascribed these variations to the amount of drainage water released into the drainage canal.…”

Section: Discussionsupporting

confidence: 92%

Heavy metals and parasitological infection associated with oxidative stress and histopathological alteration in the Clarias gariepinus

et al. 2022

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The goal of this study was to assess the harmful effects of heavy metal accumulation on Clarias gariepinus (catfish) in two different polluted areas in the Al Sharkia governorate and assess the impact on oxidative stress and histological changes. The results revealed a highly significant difference in heavy metal levels in the water and inside fish tissues (liver and gonads) between the two sites. The total prevalence of parasitic infection was at the highest percentage in area B, in addition to severe histopathological damage to the liver and the gonads. Findings show that the total prevalence of parasitic infection is associated with uptake of metals, depleted antioxidant activity, and incidence of lipid peroxidation in tissue.

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Section: Discussionsupporting

confidence: 92%

Heavy metals and parasitological infection associated with oxidative stress and histopathological alteration in the Clarias gariepinus

et al. 2022

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“…2). These results were quite similar to the heavy metal pollution study in the Lake Manzal, Egypt [16] which showed that the concentrations of different metals in water, plankton and fish tissue follow the same order: Zn > Cu > Pb> Cd. The average concentrations of metals in water were as follows: Cu, 0.055; Zn, 0.311; Cd, 0.020; and Pb, 0.022 mg/L.…”

Section: Spatial Distribution Of Heavy Metal Concentrations In River ...supporting

confidence: 86%

Assessment of Heavy Metal Pollution in the Surface Water of the Doi Canal, the Cho Dem and Ben Luc Rivers, Vietnam

Pham

THIEU

NGUYEN

et al. 2022

GSE

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The Doi Canal and the Cho Dem and Ben Luc Rivers play the key roles in irrigation, navigation and ecological restoration. It is important to clearly identify the pollution, influencing factors, ecological risks and possible sources of heavy metals in the surface water of this river system. The surface water of 7 sampling sites was collected over 7 consecutive periods from April 2019 to October 2021. Each surface water sample was analyzed for 9 heavy metals including Fe, Mn, Cr, Zn, Cu, Pb, Cd, Ni, As. Sampling and sample handling techniques were performed based on the Standard Methods for the Examination of Water and Wastewater. Among all nine heavy metals examined in the study area, the concentrations of Fe (1.00  5.06 mg/L) and Mn (0.14  0.28 mg/L) were the highest and the concentrations of Cr, Cd and As were below the lower limit of detection. The results showed that the average Fe and Mn contents both exceeded the permissible thresholds of the National technical regulation on surface water quality (QCVN 08-MT: 2015/BTNMT). Additionally, the content of Fe, Mn, Zn, Cu, Pb, Ni did not meet the water quality standards for aquatic life (United State Environmental Protection Agency).

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“…Metals that are not biodegradable may pose a health risk to people consuming aquatic organisms due to bioaccumulation in the food web (Bahnasawy et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Çoruh Nehri’ndeki Ağır Metal Kirliliğinin Değerlendirilmesi

Akkan

Mutlu

2022

Karadeniz Fen Bilimleri Dergisi

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Bu çalışmada Çoruh Nehri'nden toplanan su, askıda katı madde ve sediment örneklerinin kirlilik değerlendirmesi yapılmıştır. Bu amaç için toplanan numunelerde alüminyum, krom, manganez, demir, kobalt, nikel, bakır, çinko, kadmiyum ve kurşun konsantrasyonları ölçülmüştür. Elde edilen verilerin değerlendirilmesinde su ve sediment kalite indeksleri kullanılmıştır. Su kalitesi indeks değerleri incelendiğinde nehrin kötü su kalitesi sınıfında olduğu belirlendi. Sediment zenginleştirme faktörüne göre krom ve nikel açısından düşük düzeyde zenginleşme, manganez, demir ve kobalt için değiştirilebilir derecede zenginleşme, bakır ve çinko için önemli derecede zenginleşme, kadmiyum ve kurşun için çok yüksek düzey zenginleşmeye tespit edilmiştir. Kirlilik yükleme indeksi sonuçları da sediment kalitesinin bozulduğunu ve yüksek metal yüküne sahip olduğunu göstermiştir. Sedimentteki bu kirlilik faktörlerinin nedeninin bölgedeki madencilik faaliyetlerinden kaynaklandığını düşünülmektedir. Sonuç olarak, Çoruh Nehri'nin su ve sediment kalitesinin düzenli bir izleme programı ile izlenmesi gerektiği belirlenmiştir.

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Assessment of heavy metal concentrations in water, plankton, and fish of Lake Manzala, Egypt

Cited by 33 publications

References 0 publications

Heavy metals and parasitological infection associated with oxidative stress and histopathological alteration in the Clarias gariepinus

Heavy metals and parasitological infection associated with oxidative stress and histopathological alteration in the Clarias gariepinus

Assessment of Heavy Metal Pollution in the Surface Water of the Doi Canal, the Cho Dem and Ben Luc Rivers, Vietnam

Çoruh Nehri’ndeki Ağır Metal Kirliliğinin Değerlendirilmesi

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