title: Cadmium, copper, lead, and zinc contents of fish marketed in NW Mexico.
abstract: 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: 23.23 ± 5.83, Cu: 1.72 ± 0.63, Cd: 0.27 ± 0.07, and Pb: 0.09 ± 0.04 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: 0.48 ± 0.15; Diapterus spp.: 0.57 ± 0.33; Lutjanus spp.: 0.72 ± 0.12; small shark: 0.87 ± 0.19 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.
authors: Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, P.O. Box 1132, 82000 Mazatlán, SIN, Mexico.
authors: Martín G
authors: MG
authors: Frías-Espericueta
authors: Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, P.O. Box 1132, 82000 Mazatlán, SIN, Mexico.
authors: Francia K G
authors: FK
authors: Zamora-Sarabia
authors: Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, P.O. Box 1132, 82000 Mazatlán, SIN, Mexico.
authors: J Isidro
authors: JI
authors: Osuna-López
authors: Centro de Investigación en Alimentación y Desarrollo, Unidad Culiacán, 80129 Culiacán, SIN, Mexico.
authors: María D
authors: MD
authors: Muy-Rangel
authors: Centro de Investigación en Alimentación y Desarrollo, Unidad Culiacán, 80129 Culiacán, SIN, Mexico.
authors: Werner
authors: W
authors: Rubio-Carrasco
authors: Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, P.O. Box 1132, 82000 Mazatlán, SIN, Mexico.
authors: Marisela
authors: M
authors: Aguilar-Juárez
authors: Centro de Investigaciones Biológicas del Noroeste, Laboratorio de Estudios Ambientales UAS-CIBNOR, P.O. Box 1132, 82000 Mazatlán, SIN, Mexico.
authors: Domenico
authors: 0000-0003-2226-822X
authors: D
authors: Voltolina
mesh_terms: D000818:Animals; D002104:Cadmium / Q000032:analysis*; D003300:Copper / Q000032:analysis*; D005396:Fish Products / Q000032:analysis* / Q000592:standards; D005399:Fishes; D059022:Food Safety; D006801:Humans; D007854:Lead / Q000032:analysis*; D008800:Mexico; D015032:Zinc / Q000032:analysis*
chemical_list: D002104:Cadmium; D007854:Lead; D003300:Copper; D015032:Zinc