Content of mercury in fishes from Brazilian Northeast: a integrative review
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.001.0019Keywords:
Mercury, Fish, Food ContaminationAbstract
This research consists of an integrative review aiming to discuss mercury concentration present in fishes from the Northeast region of Brazil and identify its implication for health. The review was composed of six distinct stages: 1) elaboration of the guiding question; 2) searching or sampling in the literature; 3) data collection; 4) critical analysis of the included studies; 5) discussion of results and 6) presentation of the integrative review. Titles and abstracts were read independently by two reviewers in the database of Scientific Electronic Library Online (SciELO), Coordination for the Improvement of Higher Education Personnel (CAPES), ScienceDirect and Google Scholar. Data collection was carried out between April and August of 2018 by including the terms: mercury, fish, concentration, Northeast and Brazil for the search. Six observational studies were selected. The greatest levels of Mercury (Hg) were found in the species S. cavalla (444,8 ± 519,9 ng/g-1), R. porosus (509 ng/g-1) and G. cirratum (500 ± 330 ng/g-1). In four studies included in this review were verified Hg concentration in fishes and its relation with length and weight. It was concluded that fish from Brazilian Northeast presented, on average, a total concentration of mercury below the limit considered safe for consumption, established by Southern Common Market (Mercosur) rules.
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