Abstract:Common carp (Cyprinus carpio) is one of the most important cultured fish species in Poland. The aims of our study were to determine the concentration of essential minerals in the muscle tissue of carp obtained from a pond culture and to compare the content of these minerals with the physiological norms of nutrition for the Polish population, Recommended Dietary Allowances (RDA), and Estimated Average Requirements (EAR). The non-carcinogenic and carcinogenic risk by assessment of the Estimated target hazard quo… Show more
“…In Elsagh's study, the concentration of chromium metal in carp from the Caspian Sea was reported to be higher than the level determined by international standards, which was contrary to the result obtained in the present study; this inconsistency may have been due to the higher pollution of the Caspian Sea and enormous increase in using pesticides in this area compared to water basins of Hamadan province (37). In a study by Tkachenko et al, the amount of chromium metal was determined to be higher than that of cobalt metal in farmed carp in Poland, which was in agreement with our study results (38). Salemi and Hosseini Alhashemi reported that the concentration of chromium in common carp from the shores of Dez was equal to 0.02 mg/kg dry weight and was lower than the limit defined by international standards, which was consistent with our study findings; however, they demonstrated that the concentration of nickel in this fish was equal to 1.41 mg/kg dry weight and was higher than the limit defined by international standards, which was inconsistent with the findings from this study (39).…”
Fish consumption has been considerably increased in Iran recently. On the other hand, the increase in aquatic ecosystem pollution can cause the accumulation of heavy metals in aquatic animals – the fish, in particular. Therefore, measuring the amount of heavy metals in fish is of great importance for consumers’ health. This study aimed to measure the amount of heavy metals (nickel, chromium, and cobalt) in wild and farmed carps (Cyprinus carpio) by using an ICP device. In this cross-sectional study which was performed in Hamadan province in 2018, 40 carp samples (20 wild carp samples and 20 farmed ones) were randomly collected from Anouch and Shirinsoo dams and from breeding centers of the province and, after completing the digestion phase, the amount of heavy metals in the samples were measured using the ICP device. The study results showed that the amounts of nickel metal in wild and farmed carps were equal to 0.108±0.086 and 0.102±0.108 mg/kg dry weight, respectively; and the amounts of chromium in wild and farmed fish samples were 0.348±0.396 and 0.136±0.074 mg/kg dry weight in muscle tissue, respectively. Cobalt metal was not observed in wild and cultured samples. According to the results from the statistical analysis, no significant difference was detected between wild and farmed fishes regarding contamination with nickel metal. However, a difference was found between wild and farmed fishes (P<0.05) regarding chromium. Taking into account the higher amount of nickel and chromium metals in the wild carp samples compared to the farmed ones, it was recommended that necessary measures be taken to control the sources responsible for polluting the aquatic environment and to prevent the penetration of industrial effluents and other polluting factors into the dams of Hamedan province in order for avoiding the increase in the amount of heavy metals in the province’s water sources.
“…In Elsagh's study, the concentration of chromium metal in carp from the Caspian Sea was reported to be higher than the level determined by international standards, which was contrary to the result obtained in the present study; this inconsistency may have been due to the higher pollution of the Caspian Sea and enormous increase in using pesticides in this area compared to water basins of Hamadan province (37). In a study by Tkachenko et al, the amount of chromium metal was determined to be higher than that of cobalt metal in farmed carp in Poland, which was in agreement with our study results (38). Salemi and Hosseini Alhashemi reported that the concentration of chromium in common carp from the shores of Dez was equal to 0.02 mg/kg dry weight and was lower than the limit defined by international standards, which was consistent with our study findings; however, they demonstrated that the concentration of nickel in this fish was equal to 1.41 mg/kg dry weight and was higher than the limit defined by international standards, which was inconsistent with the findings from this study (39).…”
Fish consumption has been considerably increased in Iran recently. On the other hand, the increase in aquatic ecosystem pollution can cause the accumulation of heavy metals in aquatic animals – the fish, in particular. Therefore, measuring the amount of heavy metals in fish is of great importance for consumers’ health. This study aimed to measure the amount of heavy metals (nickel, chromium, and cobalt) in wild and farmed carps (Cyprinus carpio) by using an ICP device. In this cross-sectional study which was performed in Hamadan province in 2018, 40 carp samples (20 wild carp samples and 20 farmed ones) were randomly collected from Anouch and Shirinsoo dams and from breeding centers of the province and, after completing the digestion phase, the amount of heavy metals in the samples were measured using the ICP device. The study results showed that the amounts of nickel metal in wild and farmed carps were equal to 0.108±0.086 and 0.102±0.108 mg/kg dry weight, respectively; and the amounts of chromium in wild and farmed fish samples were 0.348±0.396 and 0.136±0.074 mg/kg dry weight in muscle tissue, respectively. Cobalt metal was not observed in wild and cultured samples. According to the results from the statistical analysis, no significant difference was detected between wild and farmed fishes regarding contamination with nickel metal. However, a difference was found between wild and farmed fishes (P<0.05) regarding chromium. Taking into account the higher amount of nickel and chromium metals in the wild carp samples compared to the farmed ones, it was recommended that necessary measures be taken to control the sources responsible for polluting the aquatic environment and to prevent the penetration of industrial effluents and other polluting factors into the dams of Hamedan province in order for avoiding the increase in the amount of heavy metals in the province’s water sources.
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