6 documents found, page 1 of 1
Insight into the mechanisms involved in the removal of toxic, rare earth, and p...
Viana, Thainara; Henriques, Bruno; Ferreira, Nicole; Pinto, Ricardo J.B.; Monteiro, Filipe L.S.; Pereira, EduardaHazardous leachate/effluent from fluorescent lamps contains potentially toxic elements such as Hg and Pb, and critical raw materials such as rare earth elements (REEs). This work evaluated the ability of the live macroalgae Ulva sp. to remediate a simulated lamp industry wastewater consisting of a complex mixture of elements (Y, Eu, La, Ce, Tb, Gd, Hg, Pb, Zn, Cu, Co, Cd, and Pt), with particular emphasis on th...
Removal of mercury by silica-supported ionic liquids: efficiency and ecotoxicol...
Viana, Thainara; Almeida, Raquel; Figueira, Paula; Rocha, Luciana; Neves, Márcia; Freitas, Rosa; Freire, Mara; Henriques, Bruno; Pereira, EduardaAnthropogenic impacts have affected the coastal environment and contributed to its contamination. Mercury (Hg) is widespread in nature and has been shown to be toxic in even the smallest amounts, negatively affecting not only the marine ecosystem but also the entire trophic chain due to its biomagnification. Mercury ranks third on the Agency for Toxic Substances and Diseases Registry (ATSDR) priority list and i...
Competition among rare earth elements on sorption onto six seaweeds
Pinto, João; Costa, Marcelo; Henriques, Bruno; Soares, José; Dias, Mariana; Viana, Thainara; Ferreira, Nicole; Vale, Carlos; Pinheiro-Torres, JoséSorption has been proposed as a promising approach towards a sustainable water decontamination and recently to the recycling of rare earth elements (REE). Although living seaweed have been shown to be capable of removing REE from contaminated solutions, no studies have yet compared the effects of REE competition on sorption onto different groups of seaweed. These effects were analysed in the present study by ex...
How safe are the new green energy resources for marine wildlife? The case of li...
Viana, Thainara; Ferreira, Nicole; Henriques, Bruno; Leite, Carla; De Marchi, Lucia; Amaral, Joana; Freitas, Rosa; Pereira, EduardaConsidering the increasing use of Lithium (Li) and the necessity to fulfil this demand, labile Li occurrence in the environment will be enhanced. Thus, additional research is needed regarding the presence of this element in marine environment and its potential toxic impacts towards inhabiting wildlife. The aim of the present study was to evaluate Li toxicity based on the exposure of Mytilus galloprovincialis to...
Main drivers of mercury levels in Southern Ocean lantern fish Myctophidae
Seco, José; Xavier, José C.; Bustamante, Paco; Coelho, João P.; Saunders, Ryan A.; Ferreira, Nicole; Fielding, Sophie; Pardal, Miguel A.Myctophids are the most abundant fish group in the Southern Ocean pelagic ecosystem and are an important link in the Antarctic marine food web. Due to their major ecological role, evaluating the level of mercury (Hg) contamination in myctophids is important as a step towards understanding the trophic pathway of this contaminant. The concentrations of total Hg were determined in muscle, gill, heart and liver tis...
Toxicological assessment of anthropogenic Gadolinium in seawater: biochemical e...
Henriques, Bruno; Coppola, Francesca; Monteiro, Rui; Pinto, João; Viana, Thainara; Pretti, Carlo; Soares, Amadeu M. V. M.; Freitas, RosaRecently, anthropogenic enrichment of rare earth elements (REE) have been reported in natural environments, due to increasing use and discharges of hospital/industrial wastewaters. Gadolinium (Gd), which is mainly used as contrast agent for magnetic resonance imaging in medical exams, may reach concentrations in water up to two orders of magnitude larger than baseline levels. Nevertheless, in marine systems sca...