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Risk and Benefit Analysis of Fish Consumption in NW Mexico: Mercury, Selenium, and Fatty Acids

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Abstract

To balance the risks and benefits of fish consumption, selenium, fatty acids (DHA + EPA), and mercury in fishery products were determined. Analyzed products were canned tuna, frozen tuna (Thunnus albacares), smoked striped marlin (Tetrapturus audax), fresh Pacific sierra (Scomberomorus sierra), fresh dolphinfish (Coryphaena hippurus), fresh tilapia (Gerres cinereus), and fresh bullseye puffer (Sphoeroides annulatus). Mercury (μg g−1 wet weight) ranged from 0.01 (dolphinfish) to 0.23 (bullseye puffer); Se ranged from 0.12 to 0.25. EPA + DHA ranged from 1.16 to 10.72 mg g−1. Intake of EPA + DHA was comparable or above the recommended daily intake; Hg intake was below the reference dose but Se intake was below than recommended values for the different population groups. Considering the HBVSe, fishery products had positive values; i.e., they are healthy food items. According to the interaction of Hg and Se and the rate of fishery product consumption, the risk for consumers is below one percent.

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Acknowledgements

We acknowledge laboratory support by Migdalia Sarahy Navidad and Gabriela Aguilar Zárate.

Funding

This work was supported by the Ministry of Public Education of Mexico under grant number 7596.20-P.

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Correspondence to Jorge Ruelas-Inzunza.

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The authors report no conflict of interest.

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Zamora-Arellano, N.Y., Betancourt-Lozano, M., Ruelas-Inzunza, J. et al. Risk and Benefit Analysis of Fish Consumption in NW Mexico: Mercury, Selenium, and Fatty Acids. Arch Environ Contam Toxicol 83, 36–46 (2022). https://doi.org/10.1007/s00244-022-00939-2

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  • DOI: https://doi.org/10.1007/s00244-022-00939-2

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