Baseline titanium levels of three highly consumed invertebrates from an eutrophic estuary in southeastern Brazil
2022
de Almeida Rodrigues, Paloma | Ferrari, Rafaela Gomes | da Anunciação de Pinho, Júlia Vianna | do Rosário, Denes Kaic Alves | de Almeida, Cristine Couto | Saint'Pierre, Tatiana Dillenburg | Hauser-Davis, Rachel Ann | dos Santos, Luciano Neves | Conte-Junior, Carlos Adam
Titanium (Ti) is considered a contaminant of emerging interest, as it displays toxic potential and has been increasingly employed in everyday products, pharmaceuticals, and food additives, mainly in nanoparticle form. However, several knowledge gaps are still noted, especially concerning its dynamics in the water. In this context, this study aimed to quantify total Ti concentrations in highly consumed swimming crabs, squid, and shrimp from an important estuary located in southeastern Brazil. Ti concentrations were higher than those reported in most studies carried out worldwide. Animal length and weight, as well as, depth, transparency, dissolved oxygen, and salinity, significantly influence Ti concentrations in the animals. Human health risks were also noted after calculating a simulated exposure to titanium dioxide, especially considering the uncertainties regarding the effects of this element and the absence of regulatory limits.
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