What question did this study set out to answer?

To assess the levels of heavy metals in highly consumed fish along the Mexican Pacific coast.

May 29, 2026Food Additives and Contaminants Part B0 citations

Metals in highly consumed fish from markets of the Mexican Pacific coast

NGNancy Lorena Garzón-Raygoza CBCarolina Bojórquez-Sánchez MBMagdalena E. Bergés-Tiznado

Key Points

To assess the levels of heavy metals in highly consumed fish along the Mexican Pacific coast.
Analyzed metal concentrations in fish species and sharks from markets along the Mexican Pacific coast.
Measured levels of cadmium, mercury, copper, and zinc in mg/kg wet weight.
Cadmium levels in fish exceeded the maximum limit set by Mexican standards.
Mercury levels were within the legal limits according to Mexican legislation.
Lead levels were found below the detection limit.

Abstract

spp. Cd 0.62 ± 0.11, Cu 0.38 ± 0.24, Hg 0.18 ± 0.12, Zn 8.1 ± 3.4; and sharks Cd 0.64 ± 0.07, Cu 0.51 ± 0.12, Hg 0.39 ± 0.23, Zn 8.2 ± 3.0 mg/kg ww. Cadmium content in fish from the Mexican Pacific coast was higher than the maximum limit, according to Mexican standards. Mercury levels complied with Mexican legislation and lead levels were below the limit of detection.

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