12 documents found, page 1 of 2
Uma amêijoa (asiática) de sucesso: atividades experimentais com Corbicula fluminea
Abreu, Gonçalo; Pascoal, Érica; Monteiro, Leandro; Mantas, Diogo; Pereira, Joana Luísa; Jesus, FátimaA amêijoa Corbicula fluminea, vulgarmente conhecida como amêijoa asiática, é um bivalve invasor de água doce. À semelhança de outros bivalves, a amêijoa asiática apresenta uma elevada taxa de filtração, o que constitui uma caraterística interessante e que pode ser facilmente avaliada em contexto de ensino. Neste artigo são propostas duas atividades experimentais que se baseiam nesta caraterística. A primeira at...
Do Freshwater and Marine Bivalves Differ in Their Response to Wildfire Ash? Eff...
Jesus, Fátima; Mesquita, Filipa; Virumbrales Aldama, Elisa; Marques, Ana; Gonçalves, Ana M. M.; Magalhães, Luísa; Nogueira, António J. A.; Ré, AnaWildfires constitute a source of contamination to both freshwater and marine ecosystems. This study aimed to compare the antioxidant defense response of the freshwater clam Corbicula fluminea and the marine cockle (Cerastoderma edule) to wildfire ash exposure and the concomitant metal body burden. Organisms were exposed to different concentrations (0%, 12.5%, 25%, 50%, and 100%) of aqueous extracts of Eucalypt ...
PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozon...
Domingues, Eva; Jesus, Fátima; Alvim, Mariana; Cotas, Carla; Mazierski, Pawel; Pereira, Joana L.; Gomes, JoãoPharmaceutical and personal care products (PPCPs) have been consumed in great extension and most of these are found in water bodies, owing to the inefficiency of conventional wastewater treatments. To face against these recalcitrant contaminants, advanced oxidation processes such as photocatalysis and ozonation have been studied. Moreover, the combination of these technologies can improve the degradation of PPC...
PPCPs abatement using TiO2-based catalysts by photocatalytic oxidation and ozon...
Domingues, Eva; Jesus, Fátima; Alvim, Mariana; Cotas, Carla; Mazierski, Pawel; Pereira, Joana L.; Gomes, JoãoPharmaceutical and personal care products (PPCPs) have been consumed in great extension and most of these are found in water bodies, owing to the inefficiency of conventional wastewater treatments. To face against these recalcitrant contaminants, advanced oxidation processes such as photocatalysis and ozonation have been studied. Moreover, the combination of these technologies can improve the degradation of PPC...
Ozone Kinetic Studies Assessment for the PPCPs Abatement: Mixtures Relevance
Gomes, João; Bernardo, Carla; Jesus, Fátima; Pereira, Joana Luísa; Martins, Rui C.The increasing consumption of pharmaceutical and personal care products (PPCPs) by humankind has been causing an accumulation of contaminants (commonly referred to as contaminants of emerging concern), in effluents and water resources. Ozonation can be used to improve the removal of these contaminants during water treatment to alleviate this burden. In this work, the degradation of methyl (MP), propylparaben (P...
A review on polycyclic aromatic hydrocarbons distribution in freshwater ecosyst...
Jesus, Fátima; Pereira, Joana L.; Campos, Isabel; Santos, Martha; Ré, Ana; Keizer, Jacob; Nogueira, António; Gonçalves, Fernando J. M.; Abrantes, NelsonPolycyclic aromatic hydrocarbons (PAHs) are a group of organic compounds, found ubiquitously in all environmental compartments. PAHs are considered hazardous pollutants, being of concern to both the environmental and human health. In the aquatic environment, PAHs tend to accumulate in the sediment due to their high hydrophobicity, and thus sediments can be considered their ultimate sink. Concurrently, sediments...
Avaliação dos efeitos dos incêndios florestais na espécie bentónica Chironomus ...
Jesus, Fátima; Santos, Martha; Ré, Ana; Campos, Isabel; Pereira, Joana L.; Gonçalves, Fernando J.M.; Abrantes, Nelson; Serpa, DalilaOs incêndios florestais constituem uma fonte de contaminação difusa, sendo reconhecidos como uma ameaça à biodiversidade dos ecossistemas aquáticos. No entanto, os seus efeitos nos organismos aquáticos permanecem pouco estudados. Neste trabalho avaliou-se o efeito dos contaminantes associados aos incêndios florestais em organismos bentónicos da espécie Chironomus riparius. Para tal, foram recolhidos sedimentos ...
Zwitterionic compounds are less ecotoxic than their analogous ionic liquids
Jesus, Fátima; Passos, Helena; Ferreira, Ana M.; Kuroda, Kosuke; Pereira, Joana Luísa; Gonçalves, Fernando; Coutinho, João A. P.; Ventura, Sónia P. M.Zwitterionic compounds (ZIs) have been attracting much attention due to their properties. Unlike ionic liquids – constituted by separated ions – the ZI structures with their cations and anions covalently bonded exhibit added complexity and diversity, suggesting that their ecotoxicological behavior should probably not be extrapolated from those of ionic liquids. This study addresses the aquatic toxicity of ZIs t...
Avaliação dos efeitos dos incêndios florestais na espécie bentónica Chironomus ...
Jesus, Fátima; Santos, Martha; Ré, Ana; Campos, Isabel; Pereira, Joana L.; Gonçalves, Fernando J. M.; Abrantes, Nelson; Serpa, DalilaOs incêndios florestais constituem uma fonte de contaminação difusa, sendo reconhecidos como uma ameaça à biodiversidade dos ecossistemas aquáticos. No entanto, os seus efeitos nos organismos aquáticos permanecem pouco estudados. Neste trabalho avaliou-se o efeito dos contaminantes associados aos incêndios florestais em organismos bentónicos da espécie Chironomus riparius. Para tal, foram recolhidos sedimentos ...
New insights on the effects of ionic liquid structural changes at the gene expr...
Jeremias, Guilherme; Jesus, Fátima; Ventura, Sónia P. M.; Gonçalves, Fernando J. M.; Asselman, Jana; Pereira, Joana LuísaKnowledge on the molecular basis of ionic liquids' (ILs) ecotoxicity is critical for the development of these designer solvents as their structure can be engineered to simultaneously meet functionality performance and environmental safety. The molecular effects of ILs were investigated by using RNA-sequencing following Daphnia magna exposure to imidazolium- and cholinium-based ILs: 1-ethyl-3-methylimidazolium c...