Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: a review

Aziz, Kosar Hikmat Hama; Mustafa, Fryad S.; Omer, Khalid M.; Hama, Sarkawt; Hamarawf, Rebaz F.; Rahman, K O

doi:10.1039/d3ra00723e

Cited by 124 publications

(17 citation statements)

References 208 publications

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“…Moreover, Liver steatosis can affect reproductive capabilities, potentially leading to decreased fish population size 59 . Liver steatosis induced by heavy metals in fish can disrupt nutrient cycling within aquatic ecosystems, affecting the availability of essential nutrients for other organisms 53 , 60 . Changes in fish populations and their health can have cascading effects throughout the food web, potentially leading to imbalances and reduced biodiversity.…”

Section: Resultsmentioning

confidence: 99%

Oxidative stress, inflammation, and steatosis elucidate the complex dynamics of HgCl2 induced liver damage in Channa punctata

Singh,

Dwivedi,

Khan

et al. 2024

Sci Rep

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Water bodies are highly pollution-prone areas in which mercury (Hg) is considered as a major menace to aquatic organisms. However, the information about the toxicity of mercuric chloride (HgCl2) in a vital organ such as the liver of fish is still inadequate. This study aimed to assess the impact of mercuric chloride (HgCl2) exposure on the liver of Channa punctata fish over 15, 30, and 45 days, at two different concentrations (0.039 mg/L and 0.078 mg/L). Mercury is known to be a significant threat to aquatic life, and yet, information regarding its effects on fish liver remains limited. The results of this study demonstrate that exposure to HgCl2 significantly increases oxidative stress markers, such as lipid peroxidation (LPO) and protein carbonyls (PC), as well as the levels of serum glutamic-oxaloacetic transaminase (SGOT) and serum glutamic pyruvic transaminase (SGPT) in the fish. Additionally, the transcriptional and protein analysis of specific genes and molecules associated with necroptosis and inflammation, such as ABCG2, TNF α, Caspase 3, RIPK 3, IL-1β, Caspase-1, IL-18, and RIPK1, confirm the occurrence of necroptosis and inflammation in the liver. Histopathological and ultrastructural examinations of the liver tissue further reveal a significant presence of liver steatosis. Interestingly, the upregulation of PPARα suggests that the fish's body is actively responding to counteract the effects of liver steatosis. This study provides a comprehensive analysis of oxidative stress, biochemical changes, gene expression, protein profiles, and histological findings in the liver tissue of fish exposed to mercury pollution in freshwater environments.

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Section: Resultsmentioning

confidence: 99%

Oxidative stress, inflammation, and steatosis elucidate the complex dynamics of HgCl2 induced liver damage in Channa punctata

Singh,

Dwivedi,

Khan

et al. 2024

Sci Rep

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“…Heavy metals can come to the water from a variety of sources including idol immersion, dumping hospital, emptying of sewers, recreational activities, etc. However, the natural sources of heavy metals are through ore-bearing rocks, forest res, vegetation, and windblown dust (Hama Aziz et al, 2023). The River Nile is the main resource of water along Egypt.…”

Section: Introductionmentioning

confidence: 99%

Hazardous Effects of Heavy Metal Pollution on Histological and Gene Expression Profiles of Nile Tilapia in the Eastern Delta, Egypt Aquatic Ecosystems

Shaalan

2024

Preprint

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Heavy metal pollution threatens the biodiversity and ecological equilibrium of the Nile River. This study investigates the impact of heavy metal pollution on aquatic animal as Nile tilapia (Oreochromis niloticus) in the Damietta branch of the River Nile and El-Rayah El-Tawfeeky, in Benha city in Egypt. Fish and water samples were subsequently analyzed using ICP-OES revealing significantly higher concentrations of Mg, Cd, Hg, Cr, Cu, Ni, Pb, and Zn in fish muscle tissues collected from Damietta branch compared to El-Rayah El-Tawfeeky samples. Histopathological examinations revealed noteworthy alterations in tilapia gill, liver, spleen, and muscle tissues, suggesting potential health risks. Gene expression analysis using RT-qPCR indicated significant changes in genes related to muscle growth (MyoD, IGF-1) and immune response (TNFa, IL6) in fish from Damietta branch relative to fish of El-Rayah El-Tawfeeky. The findings raise concerns about bioaccumulation and potential health implications for consumers. The study underscores the significance of continuous monitoring, utilizing chemical, histopathological, and molecular tools as bioindicators for environmental protection measures against aquatic pollution.

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“…It is worth mentioning that there are also HMs that are essential for the body and maintenance of health, such as iron, zinc and copper, but even these can become toxic at high concentrations [ 19 , 20 ]. Therefore, continuous, rapid, sensitive and accurate monitoring of HMs in environmental and food samples is necessary [ 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of Cd2+, Pb2+, Cu2+ and Hg2+ with Sensors Based on Carbonaceous Nanomaterials and Fe3O4 Nanoparticles

Dinu (Iacob),

Bounegru,

Iticescu

et al. 2024

Nanomaterials

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Two electrochemical sensors were developed in this study, with their preparations using two nanomaterials with remarkable properties, namely, carbon nanofibers (CNF) modified with Fe3O4 nanoparticles and multilayer carbon nanotubes (MWCNT) modified with Fe3O4 nanoparticles. The modified screen-printed electrodes (SPE) were thus named SPE/Fe3O4-CNF and SPE/Fe3O4-MWCNT and were used for the simultaneous detection of heavy metals (Cd2+, Pb2+, Cu2+ and Hg2+). The sensors have been spectrometrically and electrochemically characterized. The limits of detection of the SPE/Fe3O4-CNF sensor were 0.0615 μM, 0.0154 μM, 0.0320 μM and 0.0148 μM for Cd2+, Pb2+, Cu2+ and Hg2+, respectively, and 0.2719 μM, 0.3187 μM, 1.0436 μM and 0.9076 μM in the case of the SPE/ Fe3O4-MWCNT sensor (following optimization of the working parameters). Due to the modifying material, the results showed superior performance for the SPE/Fe3O4-CNF sensor, with extended linearity ranges and detection limits in the nanomolar range, compared to those of the SPE/Fe3O4-MWCNT sensor. For the quantification of heavy metal ions Cd2+, Pb2+, Cu2+ and Hg2+ with the SPE/Fe3O4-CNF sensor from real samples, the standard addition method was used because the values obtained for the recovery tests were good. The analysis of surface water samples from the Danube River has shown that the obtained values are significantly lower than the maximum limits allowed according to the quality standards specified by the United States Environmental Protection Agency (USEPA) and those of the World Health Organization (WHO). This research provides a complementary method based on electrochemical sensors for in situ monitoring of surface water quality, representing a useful tool in environmental studies.

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Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: a review

Abstract: An overview of the sources of heavy metal pollution, the related health risks, and cost-effective methods for removing them from wastewater.

Cited by 124 publications

References 208 publications

Oxidative stress, inflammation, and steatosis elucidate the complex dynamics of HgCl2 induced liver damage in Channa punctata

Oxidative stress, inflammation, and steatosis elucidate the complex dynamics of HgCl2 induced liver damage in Channa punctata

Hazardous Effects of Heavy Metal Pollution on Histological and Gene Expression Profiles of Nile Tilapia in the Eastern Delta, Egypt Aquatic Ecosystems

Electrochemical Detection of Cd2+, Pb2+, Cu2+ and Hg2+ with Sensors Based on Carbonaceous Nanomaterials and Fe3O4 Nanoparticles

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