Projets de recherche
104 résultats
Líder de projeto: Carla Patinha
Co-líders de projeto: Ana Lillebø, Nuno Durães, Ana Luis, Ana Sousa, Ana Claudia Dias
Disciplinas:
BiogeochimieChimieGeoreferencementPalavras chave:
BenchmarkSaline soilBaixo Vouga Lagunarfloodbank constructionResumo:
The Ria de Aveiro has been subdue to Human action to enable the lagoon harbour navigability. The most visible impact has been at Baixo Vouga Lagunar (BVL), were the land has been affected by surface saltwater intrusion. Salinization reduces soil productivity, causing the abandonment of agriculture. The completion of the floodbank construction will carry out environmental/ecological changes in the BVL. It is expected to avoid surface saltwater intrusion, however this cannot ensure the absence of saline groundwater intrusion. Hither way it is crucial to acquire benchmark conditions before the intervention in order to monitor the future evolution of the salinization process in BVL. SoilSalt will provide the benchmark for the actual status, extension and degree of soil degradation that will support the identification of potential future hazards or salinization attenuation processes. SoilSalt aims establishing the link between farmers and academics supporting the development of the Estarreja Strategic Development Plan 2015-2025.
Participantes:
Lillebø Ana, Durães Nuno, Luis Ana, Sousa Ana I., Dias Ana ClaudiaLíder de projeto: Ana Catarina Sousa
Disciplinas:
BiologieChimieEco-epidemiologieEcologie de la santeGenetiqueGeoreferencementGeospatialisationMedecineSante publiquePalavras chave:
Environmental healthrespiratory diseasesindoor environmentenvironmental contaminantsmetalspersistent organic pollutantsmicrobiomegenotoxicityResumo:
Estarreja is a highly industrialized area with high prevalence of respiratory diseases, however there is limited information on the determinants of respiratory health of Estarreja inhabitants’. The present project aims to describe the status of respiratory health in a representative sample of Estarreja adult population and understand the key environmental factors that affect the respiratory health of Estarreja inhabitants’. In this sense, the indoor environment will be characterized in terms of microbiome, and in terms of chemical contaminants. Additionally, the burden of chemical contaminants will be evaluated in human samples and the oxidative stress characterized. Our goal is to unravel possible associations between the indoor contaminants and the exacerbations symptoms in patients with respiratory diseases so that guidelines regarding the minimization of exposure can proposed in order to reduce exacerbations and prevent new cases, which ultimately may be translated into a better respiratory health status of the Estarreja population.
Líder de projeto: Juliette Rouchier
Co-líders de projeto: Corinne Pardo
Disciplinas:
EconomieGeographieSociologiePalavras chave:
Serious gamedilemme de biens communsargumentationcoordination action collectivesciences de l'éducationResumo:
Le projet s'inscrit dans une vision d'éducation au développement durable, porté en partie par les sciences de l'éducation et plus généralement les sciences sociales s'intéressant à la coordination d'action collective et aux moyens de l'améliorer. L'aspect éducatif est abordé par l'intermédiaire d'un jeu, déjà construit pour représenter des éléments structurels liés à la problématique des boues rouges traitées dans le cadre de l'OHM bassin minier. Ce jeu se veut facilement utilisable par des enseignants ou des animateurs souhaitant se l'approprier pour des publics divers - il n'a pour autant pas encore été testé suffisamment pour garantir que l'aspect éducatif soit atteint - que ce soit pour apprendre des modèles de processus, ou des comportements d'arbitrage liés à des interactions sociales et économique liées à la co-action autour de biens communs. Le but du projet est donc d'établir un réseau de chercheurs, d'école et éventuellement d'associations et de tester le même jeu dans diverses circonstances autour d'une grille d'analyse commune. Le jeu dans une version stabilisée et approuvée, ses modifications éventuelles (généralisation), le protocole construit, ainsi que le réseau d'école en contact et impliquée, seront les résultats du projet.
Participantes:
Corinne Pardo, Angela Barthes, Sylvie BlangyLíder de projeto: Flavio Silva
Co-líders de projeto: Jan Jacob Keizer, Luísa Seuanes Serafim, Paulo Costa Lemos, Isabel Campos
Disciplinas:
BiochimieBiologieChimiePalavras chave:
BioremediationMultiple contaminantsBiocharMixed microbial culturesResumo:
While soils of Estarreja continue to be important sinks of persistent contaminants, existing remediation techniques are often ineffective and fail when addressing multiple contaminants. Biochar – biomass pyrolysed for enhancing carbon sequestration and other biomass productivity – presents a dual potential for improving soil decontamination: its exceptionally high porosity can both promote adsorption of contaminants and provide habitat conditions for microbial biofilm development. It is hypothesized that the microbiomes existing in contaminated soils present enhanced abilities to thrive under such adverse environments, thus allowing for a natural improvement of the ecosystem services provided by the soil. The proposed research aims at a novel technique for remediating soil contamination, through development of biochar-attached biofilms made of mixed microbial cultures taken from those “dirty” soils identified in Estarreja and stimulated to oxidize both organic and inorganic contaminants. The work programme encompasses: microbial fingerprinting of the contaminated soils, ex situ development of biofilms cultivated from those microbiomes onto biochar carriers and assessment of the contaminant uptake kinetics.
Participantes:
Jan Jacob Keizer, Isabel Campos, Luísa Seuanes Serafim, Paulo Costa LemosLíder de projeto: Anabela Cachada
Co-líders de projeto: Sirine Bouguerra, Ruth Pereira
Disciplinas:
BiologieChimieEcophysiologiePalavras chave:
Trifolium spZea maysplant-soil mesocosmplant physiological stresssoil ecologysoil biochemical activityResumo:
Agriculture is an important sector in Estarreja region, in terms of landscape occupation and socio-economic input. However, due to the environmental impacts of the industrial sector and natural environmental change, local resources such as groundwater are known to be degraded and contaminated. Particularly, a certain level of soil and water salinization has been observed. Therefore, there is an arising demand for developing new farming practices for maintaining healthy and productive terrestrial ecosystems, together with efficient use of local resources. The main objective of this project is to suggest a farming practice (No-tillage) which contribute to environmental and ecological conservation and preservation of soil quality. Thus, the efficiency of No-tillage will be discussed through an experimental design for testing effects on farm soil parameters, soil retention function and crops production. In addition, a comparative study between the present farming practice and the proposed one will be attained.
Participantes:
Sirine Bouguerra, Ruth PereiraLíder de projeto: Carlos Manuel Martins Santos Fonseca
Co-líders de projeto: Eduardo Ferreira, Joaquim Pedro Ferreira, João Carvalho, Luís Miguel Rosalino, Maria João Ramos Pereira, Milene Matos, Tânia Barros, Victor Bandeira
Disciplinas:
BiologieClimatologieSciences de gestionSociologieZoologiePalavras chave:
agropecuáriaatividades económicas tradicionaisbiodiversidadeconservaçãogestão dos valores naturaisRia de Aveiroserviços de ecossistemassustentabilidadeResumo:
A transformação de ecossistemas nativos em áreas agrícolas, industriais ou urbanas é uma das maiores causas de perda de biodiversidade, a nível global. A gestão sustentável pode auxiliar na conservação do património natural, de forma integrada com outros usos do solo. Para tal, é crucial a integração do conhecimento sobre os ecossistemas com a matriz cultural e socioeconómica de uma região. A paisagem do Baixo Vouga Lagunar caracteriza-se por um mosaico de habitats naturais e antropogénicos. Este projeto tem como objetivo promover a gestão e conservação mais eficiente dos valores naturais da região, de forma integrada com a sua matriz cultural e socioeconómica, e contribuir para o aumento da resiliência do mosaico de habitats num contexto de alterações globais. O projeto resultará na identificação de áreas prioritárias para conservação e de boas práticas, que conciliem a preservação dos valores naturais e a viabilidade económica e o património cultural da região.
Participantes:
Victor Bandeira, Luís Miguel Rosalino, João Carvalho, Tânia Barros, Eduardo Ferreira, Milena Matos, Maria João Ramos Pereira, Joaquim Pedro FerreiraLíder de projeto: Ruth Pereira
Co-líders de projeto: Anabela Cachada, Nuno Durães, Carla Patinha, Andres Rodríguez-Seijo
Disciplinas:
BiologieChimieEcologiePalavras chave:
AGRICULTURAL SOILSBIOAVAILABILITYFOOD SECURITYINDUSTRIAL ACTIVITYNANOPARTICLESPOTENTIALLY TOXIC ELEMENTSSOILRISK ASSESSMENT.Resumo:
Estarreja Chemical Complex (ECC) is the second largest chemical complex in Portugal and has been classified by the Portuguese Environmental Agency as a "site of priority actions in terms of rehabilitation". Previous studies found that potentially toxic elements (PTEs) in Estarreja agricultural soils are associated with labile fractions, which results in their bioaccumulation and translocation in plant tissues of commercial interest, and a potential risk of transfer to the food web. Since nanotechnology has been presented as a promising technique for immobilising PTEs in soils, and particularly for reducing available contents, this project aims at evaluating the ability of nanoparticles to reduce PTEs mobility and their uptake by plants. The ability of nanoparticles to reduce the mobility of PTEs will be assessed though selective chemical extractions and by ecotoxicological assays. Thus, this project proposes to study the effectiveness of the use of nanoparticles usually employed into remediation strategies of contaminated soils to determine the changes in the mobility of potentially toxic elements assess the ecotoxicity of nanoparticles in laboratory conditions and evaluate the reduction of bioaccumulation and translocation of PTEs by plant species.
Participantes:
Cachada Anabela, Durães Nuno, Patinha Carla, Rodríguez-Seijo AndrésLíder de projeto: Ana Sousa
Disciplinas:
BiogeochimieBiologieEcologiePalavras chave:
“Moliço”Zostera nolteicarbon stocksstabilitytemporal changessedimentationclimate regulationResumo:
Seagrass meadows are globally significant blue carbon (C) sinks contributing to climate regulation, reduce sediment erosion and increase the sediment stability; thus, playing a key role in many ecosystem functions and ecological processes. Nevertheless, seagrass loss and degradation is occurring worldwide, leading to the release of C stored over millennia at these ecosystems. In Ria de Aveiro, seagrass meadows followed the global trend, and there was a great loss along the last decades of 20th century, mainly due to hydrological changes and dredging activities in the lagoon. Subtidal seagrass meadows disappeared and there was a great reduction of intertidal meadows extension and biodiversity. The harvesting of “moliço” (a mixture of seagrasses and macroalgae) and its use as fertilizer in agriculture was a traditional activity at Ria de Aveiro until the 1960’s. “Moliço” was collected and transported using traditional boats (“moliceiro”) and was frequently unloaded and commercialized at Murtosa wharfs. However, the economic value of this activity decreased over the 20th century and is currently lost. In the context of the OHM-Estarreja research topics “Biodiversity Evolution – ‘Evaluation of changes at Ria de Aveiro ecosystems’ and ‘Interaction among species, communities, population and ecosystems’”, this proposal intends to evaluate the spatio-temporal changes in Zostera noltei meadows at Murtosa region and the impacts of its vulnerability on the blue C stock. Potential drivers of change in these meadows will also be addressed.
Participantes:
Ana Sousa, Ana Lillebo, Carla PatinhaLíder de projeto: Aurélie Antonio
Disciplinas:
GeospatialisationPalavras chave:
Cartographie dynamiqueDonnéesOpenDataVisualisationWebmappingWebSIGResumo:
Aujourd’hui chaque OHM a la possibilité de publier et de visualiser ses données georéférencées grâce à l’utilisation de GeoServer intégré à l’outil libre de géocatalogue GéoNetwork version 3. Toutefois cet outil ne permet qu’une visualisation simple et certains OHM ont déjà installé ou sont en demande d’outils de visualisation qui possèdent des fonctionnalités avancées (gestion de l’évolution temporelle, création d’une cartographie dynamique à la demande de l’utilisateur, …). Ce projet consiste à proposer aux différents OHM une analyse comparative (fonctionnelle et technique) de différents outils issus du monde libre ou sous licence propriétaire. Cette analyse sera proposée sur la base d’études de cas (maquettes) qui seront accessibles en ligne aux membres des OHM. Cela permettra de guider les choix d’applications métier à mettre en œuvre en fonction des différents besoins. Nous étudierons également la pertinence et la faisabilité d’une solution mutualisée gérée au niveau central par le ROHM.
Líder de projeto: Jean-Philippe Bedell
Co-líders de projeto: Dra. Manuela Inácio
Disciplinas:
BiochimieBotaniqueChimieEcologieHistoirePalavras chave:
BioaccumulationBio-accessibilitéBiocénoseBioteBiotopeEffets écotoxicologiquesEévaluation des risquesMatrices environnementalesExposition humaineResumo:
Les différentes matrices environnementales comme les sols, les eaux et les biotes peuvent être un indicateur de la pollution de l'environnement, car ils pourraient contenir des niveaux élevés de polluants organiques (PO) qui influent sur l'environnement et la santé humaine. Les PO sont résistants à la dégradation et peuvent persister pendant de longues périodes dans l'environnement. Ces composés peuvent être transportés par le vent sur de longues distances et peuvent aussi facilement entrer dans la chaîne alimentaire. Les gens sont exposés aux OP par ingestion, inhalation et absorption cutanée, provoquant des effets néfastes à la santé humaine en raison de leur caractère cancérigène et mutagène. Dans ce travail, les risques d'exposition pour les écosystèmes (effets écotoxicologiques) et la santé humaine seront évalués et surveillés sur certaines matrices environnementales présente à Estarreja, une zone très important industrielle, ou dans des friches industrielles de la vallée du Rhône, fonciers qui doit être revalorisés et/ou récupérés pour un usage. La biodisponibilité des PO sera évaluée et quantifiée par des extractions chimiques. Des tests de bioacessibilité seront effectués afin de déduire les concentrations de PO qui peuvent être incorporés par le biote et finalement atteindre les êtres humains. La bioaccumulation et des études écotoxicologiques seront effectuées afin de comprendre et de quantifier les niveaux d'accumulation et de toxicité potentiels de ces composés dans les différents compartiments de l'environnement et le biote. Cette étude vise à contribuer à une meilleure compréhension du comportement des PO dans la dynamique des écosystèmes et de déduire les risques réels d'exposition humaine, puisque les valeurs seules mesurées ne sont pas un moyen fiable pour la réalisation d’une évaluation des risques.
Líder de projeto: Myriam Janin
Co-líders de projeto: Paula Reis Marinho
Disciplinas:
BiogeochimieChimieGeologiePaleoenvironnementPalavras chave:
Airborne particle matterPotentially harmful elementsChemical and isotopic tracersBioavailabilityInhalation routeHealth risksAir pollutionResumo:
Toxic concentrations of potentially harmful elements in ambient air can lead to (1) hazardous impact of airborne PM in the health of the population and (2) contamination of water supplies, edible crops and human food supply. Estarreja and Provence regions are impacted by industrials activities, road traffic and growing urbanization and their air quality degradation is a major issue in terms of health risks and environmental impact. Exposure to PM has been associated with respiratory symptoms, decreased lung function, worsening of asthma and the development of chronic bronchitis. Considering that dust is the most important contributor for nonpoint source pollutants to aquatic and terrestrial systems, dust deposition data is relevant information to assess potential impacts on humans and ecosystems. This multi-proxy study aims at correlating dust origin (using isotopes “fingerprints”) and physicochemical dust properties, to potential risks (magnitude of exposure and bioavailability) in terms of human health and environmental effect.
Participantes:
Paula Reis, Yves Noack, Marina Cabral Pinto, Fernando Rocha, Cristiana Santos, Jean-Claude Raynal, Pierre Etienne Mathe, José Francisco SantosLíder de projeto: Gael Le Roux
Co-líders de projeto: Paula Marinho
Disciplinas:
BiogeochimieChimieDendrochronologieDendrologiePaleoenvironnementSedimentologiePalavras chave:
archives environnementalespollutions métalliquescernes d'arbresédiments côtierstourbesisotopie du plombisotopie du mercureResumo:
Les territoires des OHMs sont fréquemment concernés par des pollutions anciennes et actuelles. Ceci est particulièrement vrai pour les éléments trace métalliques comme le plomb, l’arsenic ou le mercure. Le projet RETROW utilise des archives environnementales dans 3 OHMs (Vicdessos, Estarreja et Nunavik) pour reconstruire les chronologies de la pression humaine en termes de pollution dans ces territoires. Les reconstructions combinant différentes archives comme les sédiments, tourbes, cernes d’arbre ou otolithes permettent de caractériser les niveaux naturels antérieurs aux pollutions ainsi que de reconstruire les chronologies de ces pollutions et leurs sources (traçage isotopique). La phase 2 a pour objectifs de compléter les acquis de l’an dernier ainsi que de développer de nouvelles approches comme les mesures isotopiques du plomb dans les tourbières du Nunavik ou bien les mesures de métaux dans les diatomées retrouvées dans les sédiments récoltés lors de la phase I de RETROW à Estarreja.
Participantes:
Paula Marinho, François De Vleeschouwer, Nuno Duraes, Salomé Fernandes Pinheiro de Almeida, Sophia Hansson, Franco BiondiLíder de projeto: Fabienne Wateau
Disciplinas:
AnthropologieEcologieGeographieHistoirePsychologieSocio-anthropologiePalavras chave:
Anthropologie socialerisqueperceptionhistoires de vieagricultureaire protégéealternativesResumo:
Par une approche socio-anthropologique du contexte Estarreja/Aveiro, il s'agit de mettre en évidence un certain nombre de logiques adoptées par les populations pour s’adapter à un espace dont la pollution est avérée. La méthode consistera à recueillir des histoires de vie auprès des travailleurs de l’usine, comme auprès des agriculteurs de la terre contaminée, tout en portant une attention particulière à la mémoire des faits et des contextes dans lesquels la construction du pôle industriel a pu se développer, d’hier à aujourd’hui. Il s’agira aussi de constituer un dossier de presse et de l’analyser, pour retracer l’histoire de cette situation et sa mise en relation directe avec le site protégé d’Aveiro, à quelques kilomètres de là. Perceptions du risque, adaptations, alternatives et contradictions, par cette recherche à réaliser sur le terrain, à l’aide des méthodes qualitatives de la socio-anthropologie, l’étude contribuera à apporter le volet de sciences sociales complémentaire et forcément nécessaire aux recherches de sciences dures jusqu’alors réalisées sur ce site.
Participantes:
Manuelle Lagos Marques, Carmem Giongo, Mariana ReiLíder de projeto: Daniela Figueiredo
Co-líders de projeto: Luís Jorge Gonçalves, Diamantino Sabina, Carla Coelho, Deolinda Brito Tavares
Disciplinas:
GeoreferencementHydrologieSociologieSante publiquePalavras chave:
Citizen ScienceWater quality monitoringnitratesfaecal bacterial indicatorsgeoreferenced web platformResumo:
Climate change is enhancing the effects of anthropogenic pollution, leading to severe impacts on inland water systems and posing risks to human health. Therefore, adaptation and mitigation actions for these major challenges related to water quality are crucial but must start involving local populations in the decision-making processes. Citizen science approaches can be a powerful tool for engaging citizens and scientists for a same purpose through a responsible and conscious action, taking advantage of recent technology. The CITAQUA project is a Citizen Science approach for Estarreja population through the monitoring of the downstream section of Antuã River and wells/boreholes from the surrounding areas, concerning nitrates and faecal contamination, two important water quality problems at this region. CITAQUA is expected to increase awareness about water quality and impacts from climate change and anthropogenic activities, by connecting academic scientists with local authorities and citizens (with a special focus on Youth).
Participantes:
Luís Jorge Gonçalves, Diamantino Sabina, Carla Coelho, Deolinda Brito TavaresLíder de projeto: Ana Catarina Sousa
Co-líders de projeto: M. Ramiro Pastorinho
Disciplinas:
BiologieEco-epidemiologieMedecineSante publiquePalavras chave:
Indoor environmentRespiratory diseasesDustAsthmaCOPDFungiBacteriaResumo:
The evaluation of indoor environmental quality and the development and progression of chronic respiratory diseases has received a great deal of attention over the past years. However, most of those surveys focus on single contaminants exposure (particularly fine particles or volatile organic compounds) and to our best knowledge there are no comprehensive surveys dealing with the multiple stressors present in the indoor environment. The microRESPIRA project, by providing an integrative approach between health sciences and environmental sciences, will contribute towards the characterization of the impacts of the indoor microbial community in the respiratory health of Estarreja inhabitants. The data generated within this project will not only provide a global picture on the prevalence of chronic respiratory diseases (asthma and COPD) in this highly industrialized area but will also allow the characterization, for the first time, of the indoor microbiome, including the presence of antibiotic resistant bacteria.