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Assessment of the consumptive safety of mercury in fish from the surface waters of the Vologda region in northwestern Russia

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Abstract

It is known that the consumption of fish is the main source of mercury intake in human beings. In this study, the concentration of mercury in the muscle tissue of fish from different reservoirs of northwestern Russia was found to be 0.01–1.68 μg/g wet weight. The features of mercury accumulation in the muscle tissue of fish, depending on their type, trophic specialization, body weight, length, and the type of water body, were also revealed. Of the fish studied, 7% had mercury concentrations above the regulatory levels of the Russian Federation. The proportion of examined fish, the consumption of which will lead to an excess of the permissible weekly intake of mercury in the individual, is 44% for preschool children (2–5 years old), 34% for children of primary school age (6–10 years old), and 17% for adults. Special attention is drawn to the fact that the mercury content in fish that does not exceed the sanitary and hygienic standards (normative levels) of the Russian Federation may still be unsafe for the health of the population, especially children.

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IE was involved in original draft preparation, creation and/or presentation of the published work, specifically writing the initial draft. EL contributed to design of methodology; application of statistical techniques to analyze study data. KV was involved in formulation or evolution of overarching research goals and aims. BM, TN, PV contributed to materials collection; provision of study materials. BS was involved in data curation management activities, scrub data and maintain research data for initial use and later reuse. RO, UY contributed to visualization preparation, creation and/or presentation of the published work, specifically visualization/ data presentation.

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Correspondence to Liubov Eltsova.

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Ivanova, E., Eltsova, L., Komov, V. et al. Assessment of the consumptive safety of mercury in fish from the surface waters of the Vologda region in northwestern Russia. Environ Geochem Health 45, 863–879 (2023). https://doi.org/10.1007/s10653-022-01254-4

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