Assessment of heavy metals in tilapia fish (Oreochromis niloticus) from the Langat River and Engineering Lake in Bangi, Malaysia, and evaluation of the health risk from tilapia consumption

Taweel, Abdulali; Shuhaimi-Othman, M.; Ahmad, Asmita

doi:10.1016/j.ecoenv.2013.03.031

Cited by 170 publications

(75 citation statements)

References 26 publications

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“…THQ and maximum daily consumption rate (CR max ) were used to evaluate the potential health risk of heavy metals caused by consumption of clams (US EPA, 2000; Taweel et al, 2013). The THQ and CR max were calculated by the following equations: À3 is the unit conversion factor.…”

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confidence: 99%

Concentration distribution and potential health risk of heavy metals in Mactra veneriformis from Bohai Bay, China

Liu

Zhou

et al. 2015

Marine Pollution Bulletin

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a b s t r a c tTo investigate the pollution level and evaluate the potential health risks of heavy metals, the concentrations of chromium (Cr), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), selenium (Se), molybdenum (Mo), cadmium (Cd), antimony (Sb), and lead (Pb) were determined by inductively coupled plasma-mass spectrometry (ICP-MS) in 198 clams (Mactra veneriformis) collected from 11 sites of the Bohai Bay. The results showed that heavy metal concentrations in the clams were different at different sites (p < 0.05). Mn was dominant with a percentage of 22.08-77.03% in heavy metals, followed by Zn with 12.66-57.11%, and the concentration of Pb was the lowest with 0.45-1.04%. The potential health risk to consumers was evaluated by the target hazard quotient (THQ) and the maximum daily consumption rate (CR max ). The results indicated that the THQs of Co were the highest with the values of 1.125, 1.665, and 1.144 at three sections; the values of other individual metals were <1, which indicated that consumption of clams from the study areas caused health risks due to Co. Moreover, the CR max values also indicated the potential health risk caused by Co in clams consumed in this area. Pearson correlation analysis and principal component analysis (PCA) indicated that there were significantly positive or negative correlations between the heavy metals (p < 0.05), and the studied metals were divided into four groups. The results indicated that the concentrations of heavy metals in clams were affected not only by pollution sources but also by the characteristics of clams that could absorb selectively and accumulate special metals. This study offers important information on the pollution levels of heavy metals in clams and warns consumers of the health risks associated with the consumption of clams in the area.

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confidence: 99%

Concentration distribution and potential health risk of heavy metals in Mactra veneriformis from Bohai Bay, China

Liu

Zhou

et al. 2015

Marine Pollution Bulletin

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“…This method had been used by various studies in assessing health risks of heavy metals to the general public through food consumption via Hazard Quotient values (Harmanescu et al 2011;Wang et al 2005). Safe dietary intake and maximum allowable fish consumption rate estimations were adapted from Taweel et al (2013) using reference dose, body weight and measured concentration of heavy metal in edible portion of fish (fillet) values. One-way analysis of variance (ANOVA) was performed to test the effect of local marine species and heavy metal concentration.…”

Section: Discussionmentioning

confidence: 99%

“…If HQ more than 1 is obtained, potential health risk is related to the studied heavy metal (Taweel et al 2013). The mean values of HQ calculated for Cd, Cr and Cu were below 1 for all fish species assessed, thus consumption of fish from study area poses no adverse effects of Cd, Cr and Cu (Table 2).…”

Section: Potential Health Risk Assessment Outputmentioning

confidence: 99%

“…As a crucial constituent of the human diet, fish contains high protein content with the presence of omega-3 fatty acids, fats and vitamins with several minerals (Taweel et al 2013). Prolong consumption of contaminated fish with heavy metal could pose significant health risks.…”

Section: Introductionmentioning

confidence: 99%

“…Fish is often at the top and major part of aquatic food chain (Oyoo-Okoth et al 2010;Taweel et al 2013). As a crucial constituent of the human diet, fish contains high protein content with the presence of omega-3 fatty acids, fats and vitamins with several minerals (Taweel et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Heavy Metal in Self-caught Saltwater Fish from Port Dickson Coastal Water, Malaysia

Praveena¹,

Liew²

2015

JSM

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Preliminary study on the toxicological response of red tilapia (Oreochromis niloticus) on landfill leachate treated with Tin(IV) chloride and Jatropha curcas

Zainal

Aziz

Ramli

et al. 2021

Water Environment Research

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This study was conducted to evaluate the effect of the toxicity levels of the coagulation and flocculation process on raw and treated leachate using acute toxicity tests. Tin tetrachloride (SnCl4) and the Jatropha curcas (JC) seed were used as coagulant and coagulant aid to remove concentrated suspended solids, SS (534 mg/L), color (19,297 Pt‐Co), and chemical oxygen demand (COD) (4188 mg/L) in a stabilized landfill leachate. The toxicity effects on local red tilapia fish (Oreochromis niloticus) were investigated, which involved three main steps, namely, acclimatization, range‐finding test, and short‐term definitive test. The presence of JC seed (0.9 g/L) as a flocculant reduced the dosage of SnCl4 from 11.1 to 8.5 g/L and exhibited good removals of 99.78%, 98.53%, and 74.29%, respectively, for SS, color, and COD. The toxicity test indicated that only five fish died in the first 12 h for the treated sample compared with seven deaths for untreated leachate. In 96 h, a total of 42 and 31 mortality rates were noted for the raw and treated leachate samples, respectively. The treated sample could reduce the toxicity effects to the tested tilapia fish and is safe to be discharged at appropriate dilution concentrations. Practitioner points Coagulation‐flocculation by Tin (IV) chloride and Jatropha Curcas (JC) was investigated. Almost complete reduction of SS was obtained at 8.5 g/L of SnCl4 and 0.9 g/L of JC as flocculant. The toxicity effect was evaluated using red tilapia (Oreochromis niloticus) fish as the indicator. Treated leachate was considered acceptable as the number of dead fish was lower than the untreated leachate.

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Assessment of heavy metals in tilapia fish (Oreochromis niloticus) from the Langat River and Engineering Lake in Bangi, Malaysia, and evaluation of the health risk from tilapia consumption

Cited by 170 publications

References 26 publications

Concentration distribution and potential health risk of heavy metals in Mactra veneriformis from Bohai Bay, China

Concentration distribution and potential health risk of heavy metals in Mactra veneriformis from Bohai Bay, China

Assessment of Heavy Metal in Self-caught Saltwater Fish from Port Dickson Coastal Water, Malaysia

Preliminary study on the toxicological response of red tilapia (Oreochromis niloticus) on landfill leachate treated with Tin(IV) chloride and Jatropha curcas

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