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The Scientific World Journal
Volume 2014, Article ID 546897, 4 pages
Research Article

Cadmium, Copper, Lead, and Zinc Contents of Fish Marketed in NW Mexico

1Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, P.O. Box 1132, 82000 Mazatlán, SIN, Mexico
2Centro de Investigación en Alimentación y Desarrollo, Unidad Culiacán, 80129 Culiacán, SIN, Mexico
3Centro de Investigaciones Biológicas del Noroeste, Laboratorio de Estudios Ambientales UAS-CIBNOR, P.O. Box 1132, 82000 Mazatlán, SIN, Mexico

Received 21 August 2013; Accepted 20 October 2013; Published 12 January 2014

Academic Editors: P. Bhadury, S. Chow, and O. Pantos

Copyright © 2014 Martín G. Frías-Espericueta et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


To assess if they were within the safety limits for human consumption, the Cd, Cu, Pb, and Zn contents of fish muscles, bought from separate stalls of the fish markets of nine cities of NW Mexico, were determined by atomic absorption spectrophotometry. Considering all fish and markets, the mean contents were Zn: , Cu: , Cd: , and Pb:  µg/g (dry weight). Cu, Zn, and Pb did not reach levels of concern for human consumption, but the high Cd values determined in Mazatlán (Mugil cephalus: ; Diapterus spp.: ; Lutjanus spp.: ; small shark:  µg/g dry weight) indicate that this was the only metal of concern for human health because the daily individual consumption of fish muscle to reach the PTDI would be within 0.27 and 0.41 kg.