Journal Article

Trace metals in estuarine organisms from a port region in southern Brazil: consumption risk to the local population

Santos, Gustavo Souza, de Menezes, Márcia Santos, da Silva Carvalho Neto, Fernando, de Moraes Calado, Sabrina Loise, Salgado, Lilian Dalago

2021

Overview

Metal contamination is a threat to estuarine environments. They can accumulate in the food chain and cause toxic effects on aquatic organisms and human health. This study evaluated the concentrations of metals (Cd, Cr, Cu, Fe, Ni, Pb, and Zn) in aquatic organisms of Antonina Bay (southern Brazil) to analyze whether the metal concentrations were in accordance with Brazilian food legislation and estimate the human risk of local seafood consumption. All analyzed organisms ( Centropomus parallelus , Mugil curema , Genidens genidens , Crassostrea brasiliana , and Xiphopenaeus kroyeri ) showed traces of metals in their tissues with different metal concentrations among species. Metal concentrations were generally higher in oyster C. brasiliana , and biomagnification was not observed. Cr and Zn concentrations were above the limits established by legislation for all species in at least one sample. The concentrations of the other metals were within permitted levels. However, concentrations of Cd, Cr, Fe, and Zn posed a human consumption risk. In general, the C. brasiliana oyster presented the highest risk for human consumption, probably due to its filtering habit. Thus, the results indicated that metal concentrations in the tissues of the Antonina Bay seafood can pose a risk to human health, and this chronic exposure to metals also can cause toxic effects on local aquatic biota.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V
• Subject: Animals / Antonina / Aquatic animals / Aquatic biota / Aquatic organisms / Aquatic Pollution / Atmospheric Protection/Air Quality Control/Air Pollution / Bioaccumulation / Biological magnification / Biota / Brazil / Cadmium / Centropomus parallelus / Chromium / Chronic exposure / Copper / Crassostrea brasiliana / Earth and Environmental Science / Ecotoxicology / Environment / Environmental Chemistry / Environmental Health / Environmental Monitoring / Environmental science / Estuaries / Estuarine environments / Estuarine organisms / food chain / Food chains / Food contamination / Food law / Genidens / human health / Humans / Iron / laws and regulations / Lead / Legislation / Local population / Metal concentrations / Metals / Metals - analysis / Metals, Heavy - analysis / Mugil curema / Nickel / Organisms / Oysters / pollution / Research Article / Risk / Seafood / Seafood - analysis / seafood consumption / seafoods / Shellfish / toxicity / Trace Elements / Trace metals / Waste Water Technology / Water Management / Water Pollutants, Chemical - analysis / Water Pollution Control / Xiphopenaeus kroyeri / Zinc