Estimation of metal residues in Oreochromis niloticus and Mugil cephalus intended for human consumption in Egypt: a health risk assessment study with some reduction trials

Morshdy, Alaa Eldin M. A.; Darwish, Wageh Sobhy; Daoud, Jehan Ragab; Sebak, Maher Ali M.

doi:10.1007/s00003-018-1198-1

Cited by 14 publications

(15 citation statements)

References 36 publications

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“…Whereas, the maximum concentrations of Zn (109.294 mg/kg, wet weight) and Cd (0.196 mg/kg, wet weight) in the samples were over twofold and close to fourfold of MRL, respectively, as recommended in Europe. Zn is an essential microelement to maintain the normal physiological functions of the human body [40], but its excessive accumulation could cause few toxicological diseases [41], such as increasing the potential risks of gastrointestinal toxicity [42]. In general, centralized industrial production commonly leads to the changes in the chemical composition of nearby ecosystems [43], such as zinc mining, natural ores, galvanizing plants, machine manufacturing, and municipal wastewater treatment plants, attributed to increasing the concentration of Zn in the aquatic environment [42,44,45].…”

Section: Analysis Of Concentration Of Metals In the Fish Samplesmentioning

confidence: 99%

Health Risk Assessment of Metals (Cu, Pb, Zn, Cr, Cd, As, Hg, Se) in Angling Fish with Different Lengths Collected from Liuzhou, China

Miao

Hao³

et al. 2020

IJERPH

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Wild fish caught by anglers (WFAs) were confirmed to be usually contaminated with metals, and the contamination status is radically affected by the growth and length of the fish. To determine the contamination levels of metals and health risks in WFAs with different length ranges of fish, this study ascertained the concentration of eight metals, including Cu, Pb, Zn, Cr, Cd, As, Hg and Se, in 171 wild fishes collected from the watershed of Liujiang River. The assessment of metal pollution and health risks from the consumption of these fishes with seven length ranges were accomplished. The obtained results implied a relatively high concentration of Zn, Cr, and Cd up to 109.294 mg/kg, 4.226 mg/kg, and 0.196 mg/kg (wet weight), respectively, which exceed the corresponding Maximum Residue Limit (MRL). The negative correlation between Cu, Zn, Cr, and Cd was observed to be significant with fish length, signifying a possible occurrence of biological dilution on these metals. The WFAs were mostly contaminated with Cr and Cd irrespective of the length ranges of fish, which were denoted by the average pollution index (Pi) of Cr and Cd and were commonly found to be beyond 0.2. Based on the results of health risk assessment analysis, most of the target hazard quotient (THQ) values of Cr were below 1, implying that the consumption of wild fish for adults has insignificant health risk. For children, the total target hazard quotient (TTHQ) values of beyond 1 were found in fishes with the length range of <25 cm, particularly a TTHQ value 1.627 in the range of 10–15 cm, indicating that children are being prone to serious health risks owing to the consumption of WFAs. The weekly recommended consumption of WFAs with the length range of 10–15 cm for adults and children was 0.298 kg/week and 0.149 kg/week, respectively. These are substantially lower than the current rate of fish consumption (0.42 kg/week), and therefore, the wild fish with the length range of 10–15 cm should be avoided for consumption.

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Section: Analysis Of Concentration Of Metals In the Fish Samplesmentioning

confidence: 99%

Health Risk Assessment of Metals (Cu, Pb, Zn, Cr, Cd, As, Hg, Se) in Angling Fish with Different Lengths Collected from Liuzhou, China

Miao

Hao³

et al. 2020

IJERPH

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“…Shellfish such as shrimp, crab, oyster, and mussels are important sources for the high-quality protein, polyunsaturated fatty acids, vitamins, and minerals. However, such shellfish might contain high levels of certain environmental pollutants including heavy metals, polycyclic aromatic hydrocarbons, and pesticides (Morshdy et al, 2019; Thompson and Darwish, 2019) . Heavy metals such as lead (Pb), cadmium (Cd), zinc (Zn), and copper (Cu) characterized by their bioaccumulation and biomagnification characters.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of some heavy metals in shellfish: Dietary intakes and health risk assessment

tanany

2021

Benha Veterinary Medical Journal

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Shellfish is considered as important source for high quality protein, polyunsaturated fatty acids, vitamins, and minerals. The present study aimed to study the incidence of four heavy metals including lead (Pb), cadmium (Cd), zinc (Zn), and copper (Cu) in four of the shellfish including shrimp, crab, oyster, and mussels. Moreover, the dietary intakes and the potential non-carcinogenic human health risks were calculated for Egyptian consumers. The obtained results revealed that shrimps had the lowest residual concentrations for both Pb, and Cd; whereas mussels had the highest Pb content, while oyster had the highest Cd content. The high content of heavy metals in the examined shellfish indicates the contamination of their living environment with heavy metals. The inter-species differences in their accumulation of heavy metals indicate their physiological differences their xenobiotic metabolizing enzymes. All examined shellfish had considerable concentrations of Cu, and Zn suggesting that these species can provide humans with part of their needs for these essential trace elements. Calculation of the potential non-carcinogenic risks for the tested metals associated with the consumption of shellfish indicated that the average consumption of these shellfish would not pose any risks for the Egyptian population.

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“…e acid digestion method which was previously described by Benson et al [29], Huang et al [26], and Morshy et al [9] was used. Each fish sample was washed three times with deionized water to avert any possible contamination [30,31].…”

Section: Analysis Of Samplesmentioning

confidence: 99%

“…Runoffs from agricultural activities contain appreciable concentrations of trace metals [6]. Fish in heavy metal polluted water are susceptible and vulnerable to toxicological problems because of their feeding habits and location in water environments [7][8][9]. Fish exposure to toxicants has had some harmful effects on their quality, diversity, and health of humans who depend on them for their protein needs [10].…”

Section: Introductionmentioning

confidence: 99%

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Heavy Metal Concentrations in Fish from River Tano in Ghana and the Health Risks Posed to Consumers

Nyantakyi

Wiafe

Akoto

et al. 2021

Journal of Environmental and Public Health

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Appreciable levels of trace metals have been reported in the Tano basin, but data on the corresponding levels in fish and the risk they pose to consumers are limited. The levels of 7 trace metals in 18 fish muscles were assessed between November 2016 and October 2017 using acid digestion and PerkinElmer (PinAACle 900T) Atomic Absorption Spectrophotometry. Apart from Cu, all the metals studied were detected in all fish samples. The levels of Cr, As, and Hg were higher than the acceptable levels of fish muscles. Cr concentration ranged from 16.10 ± 0.2 mg/kg in Clarias gariepinus to 57.9 ± 4.2 mg/kg in Sarotherodon galilaeus. The levels of As ranged from 1.01 ± 0.08 in Clarias gariepinus to 3.00 ± 0.01 mg/kg in Mormyrus rume. Hg level was 0.58 ± 0.69 mg/kg in Oreochromis niloticus and 2.52 ± 0.70 mg/kg in Ctenopoma kingsleyae. However, Pb, Zn, and Cd concentrations were below the Food and Agriculture Organization limits with low target hazard quotients in all fish samples, suggesting no possible noncarcinogenic risks to adult consumers. Possible noncarcinogenic and carcinogenic health risks were recorded for As, Hg, and Cr in all fish species. Strong associations were observed between Hg, As, Zn, and Cr and between Pb and Cd suggesting a possible common source. Mormyrus rume fish species was under stress in the river, but the remaining species were in good condition. Periodic monitoring of trace metal concentrations in fish and enforcement of the buffer zone policy are recommended.

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Estimation of metal residues in Oreochromis niloticus and Mugil cephalus intended for human consumption in Egypt: a health risk assessment study with some reduction trials

Cited by 14 publications

References 36 publications

Health Risk Assessment of Metals (Cu, Pb, Zn, Cr, Cd, As, Hg, Se) in Angling Fish with Different Lengths Collected from Liuzhou, China

Health Risk Assessment of Metals (Cu, Pb, Zn, Cr, Cd, As, Hg, Se) in Angling Fish with Different Lengths Collected from Liuzhou, China

Occurrence of some heavy metals in shellfish: Dietary intakes and health risk assessment

Heavy Metal Concentrations in Fish from River Tano in Ghana and the Health Risks Posed to Consumers

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