Accumulation of Trace Metals in Indigenous Fish Species from the Old Brahmaputra River in Bangladesh and Human Health Risk Implications

Shorna, Sabikunnahar; Shawkat, Saika; Hossain, Anwar; Quraishi, Shamshad B.; Ullah, Asmat; Hosen, Mohammad Mozammal; Hossain, Kamal; Saha, Badhan; Paul, Bimal Kanti; Habibullah-Al-Mamun, Md.

doi:10.1007/s12011-020-02450-y

Cited by 17 publications

(8 citation statements)

References 61 publications

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“…Based on the above explicit control experiments, a sensor response screen was performed between a panel of DNA-SWCNTs and our divalent metal ions of interest at 100 μM concentrations. Specifically, Cd, Hg, Pb, Ni, and Cr are chosen due to their presence as the most common toxic trace metals in aquaculture . Since each study is performed in three technical replicates, we choose two-tailed Z -values to represent statistically significant optical responses between integrated intensities of metal ion and control groups.…”

Section: Resultsmentioning

confidence: 99%

“…Specifically, Cd, Hg, Pb, Ni, and Cr are chosen due to their presence as the most common toxic trace metals in aquaculture. 48 Since each study is performed in three technical replicates, we choose two-tailed Z-values to represent statistically significant optical responses between integrated intensities of metal ion and control groups. Figure 4A displays screen results of each analyte/sensor combination with Z > 3 (two-tailed, P < 0.0027).…”

Section: Effects Of Ionic Strength and Ph On Opticalmentioning

confidence: 99%

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Divalent Metal Cation Optical Sensing Using Single-Walled Carbon Nanotube Corona Phase Molecular Recognition

et al. 2022

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Colloidal single-walled carbon nanotubes (SWCNTs) offer a promising platform for the nanoscale engineering of molecular recognition. Optical sensors have been recently designed through the modification of noncovalent corona phases (CPs) of SWCNTs through a phenomenon known as corona phase molecular recognition (CoPhMoRe). In CoPhMoRe constructs, DNA CPs are of great interest due to the breadth of the design space and our ability to control these molecules with sequence specificity at scale. Utilizing these constructs for metal ion sensing is a natural extension of this technology due to DNA's well-known coordination chemistry. Additionally, understanding metal ion interactions of these constructs allows for improved sensor design for use in complex aqueous environments. In this work, we study the interactions between a panel of 9 dilute divalent metal cations and 35 DNA CPs under the most controlled experimental conditions for SWCNT optical sensing to date. We found that best practices for the study of colloidal SWCNT analyte responses involve mitigating the effects of ionic strength, dilution kinetics, laser power, and analyte response kinetics. We also discover that SWCNT with DNA CPs generally offers two unique sensing states at pH 6 and 8. The combined set of sensors in this work allowed for the differentiation of Hg 2+ , Pb 2+ , Cr 2+ , and Mn 2+ . Finally, we implemented Hg 2+ sensing in the context of portable detection within fish tissue extract, demonstrating nanomolar level detection.

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Section: Resultsmentioning

confidence: 99%

Section: Effects Of Ionic Strength and Ph On Opticalmentioning

confidence: 99%

Divalent Metal Cation Optical Sensing Using Single-Walled Carbon Nanotube Corona Phase Molecular Recognition

et al. 2022

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“…Meanwhile, Islam et al 47 found higher levels of mercury than the permissible limit in fish samples collected from the Paira River of the Patuakhali district located in the southern part of Bangladesh. However, Shorna et al 70 found that mercury in fish samples collected from the Old Brahmaputra River in Bangladesh did not exceed the standards for food safety. Alam and Haque 66 also found no level of mercury concentration in tilapia and pangasius ponds.…”

Section: Formalin Control Act 2015mentioning

confidence: 99%

A systematic review of fish adulteration and contamination in Bangladesh: A way forward to food safety

Khan

Hossain

Islam

et al. 2023

Reviews in Aquaculture

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For decades, the world has been plagued by widespread food adulteration, and Bangladesh is no exception. Dishonest business people and fish farmers unlawfully utilize various preservatives to avoid rotting and extend the shelf life of fish. Although previous research has examined the level of formalin use in fish bodies, no studies focusing on all aspects of fish adulteration and contamination in Bangladesh have been carried out. In this context, the aim of this review is to explore the extent and magnitude of illegal fish adulteration and contamination in Bangladesh. Among the 37 reviewed studies, 11 of them highlighted formalin adulteration in fish samples and fish feed. The extent of formalin use varied between local and imported fish, and between large and small fish. Imported and large fish were substantially more formalin‐contaminated. Several investigations have discovered that antibiotic levels in farm water and fish feed exceed the permitted level. Farmers have used growth promoters incautiously. This study also identifies that certain metal substances, such as chromium, lead, arsenic, cadmium, iron, mercury and cobalt, have been frequently found in fish bodies and feed samples. Furthermore, a distinct type of fish adulteration caused by aromatic compounds has emerged recently. The findings and their ramifications are extremely concerning for human lives. However, since each study employed a different testing kit, the results were quite distinct. Thus, the adoption of a precise and sensitive kit is strongly recommended. The government should make it a top priority to solve the problem of fish adulteration by implementing appropriate food safety laws and policies.

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“…Trace Metal Contents in the Muscles of Fish with Different Diets Different feeding habits lead to different trace metal contents in organisms [42]. The trace metal contents in muscle tissues of fish with different food habits showed varying trends (Figure 2).…”

Section: Characteristics Of Fish Metal Contentmentioning

confidence: 99%

Trace Metals (As, Cd, Cr, Cu, Hg, Ni, Pb, Zn) and Stable Isotope Ratios (δ13C and δ15N) in Fish from Wulungu Lake, Xinjiang, China

Liu

et al. 2021

IJERPH

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Wulungu Lake is a vital fishery area in Xinjiang. However, the concentration, enrichment rules, and sources of As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn in the aquatic organisms, have rarely been investigated. The results suggest that the concentrations of As, Ni, Pb, and Zn were higher than those recommended by the national standards for edible fish in some species. Hg, Ni, Cu, Pb, Cr, and Zn in the fish were dependent on the concentration of trace metals in the water environment (p < 0.05). The body weights of the fish were significantly negatively correlated with only Hg (p < 0.05); however, their body lengths were significantly positively correlated with As, Cu, Zn, and Hg contents. Values of δ13C ‰ (δ15N ‰) for the entire fish food web was found to range from −19.9‰ (7.37‰) to −27.7‰ (15.9‰), indicating a wide range of trophic positions and energy sources. Based on the linear correlation, As, Cu, Cd, and Zn contents were positively correlated with δ15N (p < 0.05), and bioaccumulation was observed in the fish. The target hazard quotient (THQ) of all fish species was less than 1, indicating the absence of potential risks to human health.

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Accumulation of Trace Metals in Indigenous Fish Species from the Old Brahmaputra River in Bangladesh and Human Health Risk Implications

Cited by 17 publications

References 61 publications

Divalent Metal Cation Optical Sensing Using Single-Walled Carbon Nanotube Corona Phase Molecular Recognition

Divalent Metal Cation Optical Sensing Using Single-Walled Carbon Nanotube Corona Phase Molecular Recognition

A systematic review of fish adulteration and contamination in Bangladesh: A way forward to food safety

Trace Metals (As, Cd, Cr, Cu, Hg, Ni, Pb, Zn) and Stable Isotope Ratios (δ13C and δ15N) in Fish from Wulungu Lake, Xinjiang, China

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