Baseline titanium levels of three highly consumed invertebrates from an eutrophic estuary in southeastern Brazil

• Published in: Marine pollution bulletin 2022-10, Vol.183, p.114038-114038, Article 114038
• Main Authors: 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
• Format: Article
• Language: English
• Subjects: Ecological implications; Metal contamination; Nanoparticle; Public health; Risk assessment; Seafood; Titanium
• ISSN: 0025-326X; 1879-3363
• DOI: 10.1016/j.marpolbul.2022.114038

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. •Titanium is used in many everyday products and is considered an emerging contaminant.•Titanium was quantified in muscles samples of swimming crab, shrimp, and squid.•Biometric and abiotic factors influence Titanium concentrations in the animals.•The metal concentrations found here were higher than in other works around the world.•The assessment of exposure to Titanium indicated potential risk to human health.