Total Mercury in Muscles and Liver of Mugil Spp. from Three Coastal Lagoons of NW Mexico: Concentrations and Risk Assessment

Overview

Journal Environ Monit Assess

Publisher Springer

Specialty Environmental Health

Date 2017 Jun 7

PMID 28585039

Authors

C G Delgado-Alvarez

M G Frias-Espericueta

J Ruelas-Inzunza

M J Becerra-Alvarez

C C Osuna-Martinez

M Aguilar-Juarez

J I Osuna-Lopez

O Escobar-Sanchez

D Voltolina

Affiliations

Soon will be listed here.

Abstract

Total mercury (Hg) concentrations were determined by atomic absorption spectrophotometry in muscles and liver of composite samples of Mugil cephalus and M. curema collected during November 2013 and in January, April, and July 2014 from the coastal lagoons Altata-Ensenada del Pabellón (AEP), Ceuta (CEU), and Teacapán-Agua Brava (TAG) of Sinaloa State. The mean Hg contents and information on local consumption were used to assess the possible risk caused by fish ingestion. Mean total mercury levels in the muscles ranged from 0.11 to 0.39 μg/g, while the range for liver was 0.12-3.91 μg/g. The mean Hg content of the liver was significantly (p < 0.001) higher than that of the muscles only in samples collected from AEP. Although total Hg levels in the muscles were lower than the official permissible limit, the HQ values for methyl mercury calculated for the younger age classes of one fishing community were >1, indicating a possible risk for some fishing communities of the Mexican Pacific coast.

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