Mercury Levels in Fish for Human Consumption from the Southeast Gulf of California: Tissue Distribution and Health Risk Assessment

We assessed human health risk due to mercury (Hg) concentrations in fish from three coastal lagoons (Urías, Huizache, and Teacapán) in the SE Gulf of California. We also determined Hg distribution in muscle and liver of analyzed ichthyofauna and compared the results among studied areas according to...

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Bibliographic Details
Published in:Archives of environmental contamination and toxicology 2018-02, Vol.74 (2), p.273-283
Main Authors: Martínez-Salcido, A. I., Ruelas-Inzunza, J., Gil-Manrique, B., Nateras-Ramírez, O., Amezcua, F.
Format: Article
Language:English
Subjects:
Bioaccumulation
Cynoscion reticulatus
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Fish
Health risk assessment
Health risks
Hydrologic regime
Hydrology
Lagoons
Liver
Mercury
Mercury (metal)
Monitoring/Environmental Analysis
Muscles
Pollution
Pomadasys macracanthus
Quotients
Risk assessment
Soil Science & Conservation
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Summary:We assessed human health risk due to mercury (Hg) concentrations in fish from three coastal lagoons (Urías, Huizache, and Teacapán) in the SE Gulf of California. We also determined Hg distribution in muscle and liver of analyzed ichthyofauna and compared the results among studied areas according to tissue, season, and lagoon system by using multivariate analyses. Levels of Hg in most of the analyzed fish followed the sequence liver > muscle. The highest Hg levels in muscle (2.80 µg g −1  dw) and liver (9.51 µg g −1  dw) were measured in Cynoscion reticulatus and Pomadasys macracanthus , respectively, although according to the multivariate analyses, statistical differences of Hg concentrations were not found according to the season and the tissue but were found according to the system. It seems that the higher concentrations were associated with areas where the hydrological regime is lower. With respect to health risk assessment, the highest hazard quotients were estimated for Cynoscion reticulatus (0.45) and Stellifer furthii (0.29) from Urías and Pomadasys macracanthus (0.35) from Huizache. None of the studied fish represent a risk for consumers in terms of Hg levels in the edible portion.
ISSN:0090-4341
1432-0703
DOI:10.1007/s00244-017-0495-5