Metal Levels In Muscle Tissues Research Articles

Türkiye'nin Karadeniz Kıyılarında Yakalanan Sarda Sarda'da (Bloch, 1793) Ağır Metal Konsantrasyonları ve Sağlık Riski Değerlendirmesi

In this study, it was aimed to determine heavy metal levels in muscle tissues of Atlantic bonito samples caught in the Eastern Black Sea Region and to determine their potential to pose a risk to human health. The concentrations of Fe, Zn, Cu, Pb, Mn, and Al have been measured in the edible muscle of Atlantic bonito (Sarda sarda Bloch, 1793) from the Trabzon and Rize coasts of the southern Black Sea from September 2020 to December 2020. Cd, Cr, Co, and Ni were not detected in the edible part of S. sarda in both coastal areas. These concentrations are lower than the maximum permissible values in European and Turkish regulations. The average weekly intake of heavy metals per body weight value not exceeded the Provisional Tolerable Weekly Intake (PTWI) established. Therefore, it may be concluded that these ten metals should not pose any health threat to the consumers resulting from the consumption of S. sarda.

Heavy metal levels in economically important fish species sold by fishermen in Karatas (Adana / TURKEY)

In this study, heavy metal (Cu, Zn, Cr, Cd, Pb and As) levels in the muscle of economically important fish species (Trachurus mediterraneus, Sparus aurata and Pegusa lascaris) living in different water columns in the North-East Mediterranean Sea were measured. Fish were bought from local fishermen between September 2016-August 2017 in Karataş region (Adana, Turkey). Levels of Cd, Cr, Pb and As were highest in the muscle of T. mediterraneus, S. aurata and P. lascaris in the autumn season, while Cu levels were highest in T. mediterraneus and S. aurata in the spring season. The lowest and highest levels of Cu, Zn, Cr, Cd, Pb and As in the muscle of fish were 0.11–0.37, 0.09–0.57, 0.03–0,28, 0.002–0.03, 0.04–0.11 and 0.09–0.49 (μg/g w.w.), respectively. Metal levels in muscle tissues were within the ranges of acceptable levels according to TFC (Turkish Food Codex), WHO (World Health Organization) and FAO (Food and Agriculture Organization) in terms of human consumption point of view. It was determined that the estimated daily (EDI) and weekly (EWI) metal intake levels were below the tolerable levels, and the Target Hazard Quotient (THQ) and Cancer Risk (CR) (except arsenic for CR) values were below acceptable standards in case of consumption of the examined species. Heavy metal levels in the studied species do not pose any risk to both fish and human health points of view.

Heavy metal levels in muscle tissues of some fish species caught from north-east Mediterranean: Evaluation of their effects on human health

Sixteen different fish species were sampled from six sampling stations selected between Taşucu (Mersin) and Samandağ (Hatay) at North-East Mediterranean coasts of Turkey between March and May 2018.Mean muscle levels of Cr, Mn, Fe, Ni, Cu, Zn, As, Sn and Pb for fish species obtained from all sampling stations were 2.15–7.10, <0.0002 – 0.39, <0.001 – 19.02, <0.0006 – 0.50, <0.0006 – 0.74, 3.82–55.05, 1.08–15.06, <0.0004 – 0.92 and <0.0003 – 0.06 mg kg−1 wet weight respectively. Cadmium levels in muscle tissues of all the species studied were below detection limits.Mean muscle level of each metal was calculated for each station by keeping the human consumption in mind, weekly tolerable limits, target hazard quotients and cancer risk assessment of the metals were firstly determined in fish species obtained from North-East Mediterranean. The amount of metal intake by the consumption of analyzed samples was found to be below weekly tolerable limits, however target hazard quotients and cancer risk levels for As were found above the limits stated by United States Environmental Protection Agency. Moreover, 20.93% and 27.91% of 43 fish specimen obtained from Erdemli station had higher Zn levels than those proposed by Turkish Food Codex and World Health Organization respectively.

Heavy Metal Levels in Muscle Tissues of Solea solea, Mullus barbatus, and Sardina pilchardus Marketed for Consumption in Mersin, Turkey

Edible muscle tissues of Solea solea, Mullus barbatus, and Sardina pilchardus marketed in Mersin were analyzed for their Cr (total), Mn, Fe, Ni, Cu, Zn, As (total), Cd, Sn, and Pb levels. Metal levels of the tissues were determined using inductively coupled plasma-mass spectrophotometric (ICP-MS) methods. Muscle levels of Cr, Mn, Fe, Ni, Cu, Zn, As, Sn, and Pb were determined as 0.19–2.80, 0.08–3.88, 0.93–25.76, 0.03–0.63, 0.01–1.96, 1.28–45.95, 0.49–25.26, 0.14–4.03, and 0.02–1.37 mg kg−1 w.w., respectively. Cadmium levels were below detection limits in all the muscle samples taken. Mean metal levels of the tissues were compared with the provisional tolerable daily (PTDs) and weekly (PTWIs) intake limits. Mean metal levels taken by the consumption of analyzed tissues were below PTDs and PTWIs; hence, the fish species studied do not pose any risk for human consumption from the point of heavy metals.

Heavy metal levels in two food fish species from Negombo estuary, Sri Lanka: Relationships with the body size

The present study was carried out to assess the levels of eight metals viz. Pb, Cu, Cd, Ni, Cr, Mn, Hg and Zn in two species of food fish, Etroplus suratensis and Ambassis commersoni from Negombo estuary. The levels of Hg were analyzed by cold vapour atomic absorption spectrometry whereas the other metals were analyzed by flame/graphite furnace atomic absorption spectrometry. Total metal levels in muscle, gill and liver tissues of the fish showed a wide range. Accumulation of most metals in the tissues of the fish followed the increasing order, muscle &lt; gills ≤ liver. Of the different metal levels detected in the fish, only the level of Cd in liver tissue of 6% of E. suratensis and 12% of A. commersoni exceeded the level specified for human consumption by European Union. Interspecies comparisons revealed that mean level of Zn in the muscle tissue of A. commersoni was two fold higher than that of E. suratensis. The levels of metals in the muscle tissue of both fish species were positively correlated with the body weight or body length of the fish. Based on the levels of Hg, Pb, and Cd in the fish, edible muscle of both fish species collected from the estuary was found to be safe for human consumption. However, heavy consumption of bigger size fish may pose a health risk to the consumers as there were strong positive correlations between body weight or body length and metal levels in muscle tissues of both species of fish.DOI: 10.4038/sljas.v13i0.2207Sri Lanka J. Aquat. Sci. 13 (2008): 63-81

Heavy metal contaminants in Red Pandora ( Pagellus erythrinus) tissues from the Eastern Aegean Sea, Turkey

Heavy metal contents were investigated in different organ tissues of Red Pandora ( Pagellus erythrinus) from the eastern Aegean Sea between May 1996 and July 1998. The concentrations of mercury in the muscle tissue ranged between 16 and 716, in liver 125–5451, in gonad 2.0–1858; cadmium in muscle nd-9.6, in liver 1.4–2245, in gonad nd-192; lead in muscle nd-1397, in liver 112–8311, in gonad nd-2927; zinc in muscle 1352–6693, in liver 2710–78705, in gonad 7273–168655; copper in muscle nd-383, in liver nd-21986, in gonad nd-20499 (μg/kg wet weight). The highest concentrations were generally found in the Southern Aegean Sea. All metal levels in muscle tissues are lower than the limits of European Dietary Standards and Guidelines. The metals ratios between liver and muscle indicated that the liver accumulated higher levels of metals than the muscle tissues. The bioaccumulation factor (BAFs) of metals was measured in muscle, liver and gonads. BAFs among the analysed elements showed the descending orders as Zn>Cu>Cd>Pb for muscle and gonads and Cd>Zn>Cu>Pb for liver.