Assessment of human health risk associated with methylmercury in the imported fish marketed in the Caribbean

Environmental Research
Fabio Fuentes-GandaraSergi Díez

Abstract

The decline in marine and freshwaters catches in recent years in Colombia has led to a change in dietary habits, with an increase in the purchase and consumption of imported fish. This is of particular concern as fish are sometimes caught in mercury-contaminated waters, and are subsequently sold canned or uncanned. In addition, canned tuna has received little attention as it is widely assumed that concentrations are low. In this study, total mercury (THg) and methylmercury (MeHg) concentrations were evaluated in three imported fish species marketed in Colombia, Prochilodus lineatus, Prochilodus reticulatus, and Pangasianodon hypophthalmus, plus four brands of canned tuna and one of sardines. One brand of tuna showed the highest mean concentrations of THg (0.543 ± 0.237 μg/g, wet weight, ww) and MeHg (0.518 ± 0.337 μg/g ww), while concentrations in P. hypophthalmus were approximately 30 times lower (≈0.02 µg/g ww). The estimated weekly intake (EWI) in children was above the provisional tolerable weekly intake (PTWI) of MeHg established by the Joint FAO/World Health Organization (WHO) Expert Committee on Food Additives (JECFA) in 2007, 1.6 μg/kg body weight (bw) per week, for all the canned tuna brands. Values for adults were bel...Continue Reading

Citations

Apr 29, 2020·Bulletin of Environmental Contamination and Toxicology·Stephani Ferreira da SilvaMarcelo de Oliveira Lima
Oct 27, 2018·International Journal of Environmental Research and Public Health·Sonia Mireya DíazJulián Alfredo Fernández-Niño
Nov 19, 2018·Biological Trace Element Research·Claudia Herrera-HerreraJosé Marrugo-Negrete
May 20, 2020·Environmental Health Insights·Felly EsilabaTerewe Mwanyika
Nov 13, 2020·Environment International·Clelia Calao-RamosSergi Díez
Feb 3, 2020·Chemosphere·Stephani Ferreira da Silva, Marcelo de Oliveira Lima
Jun 15, 2020·Ecotoxicology and Environmental Safety·Samantha Jiménez-OyolaPablo Higueras

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