Projets de recherche
107 résultats
Líder de projeto: Marie-Laure Trémélo
Co-líders de projeto: Corinne PARDO
Palavras chave:
Science ouverteOuverture des donnéesPrincipes FAIRInterdisciplinaritéResumo:
Informer et former la communauté scientifique aux bénéfices du partage et de l’ouverture des données pour tendre vers un changement progressif des pratiques de gestion et de diffusion de la donnée sont les objectifs du WP1 du projet SO-DRIIHM (ANR 2020) conduit par le groupe Data-DRIIHM. Dans ce cadre, il est important de prendre en compte aussi bien les chercheurs qui croulent sous les informations de leurs établissements que ceux isolés qui ne bénéficient d’aucun accompagnement sur cette thématique. Le groupe Data-DRIIHM se pose désormais en « Aiguilleur de la Science Ouverte » pour l’ensemble de la communauté DRIIHM en regroupant les informations et supports pédagogiques, en mettant à disposition ces ressources tout en accompagnant et conseillant au mieux les chercheurs. L’objectif de ce projet est donc de recenser et faciliter l’accès aux ressources pédagogiques en matière de Science Ouverte, dans son acception large, pour les chercheurs de la communauté DRIIHM et de répondre à leurs questionnements : comment créer un PGD ? Comment gérer les données personnelles et respecter le RGDP ? Mes recherches sont-elles soumises à l’APA ? Comment répondre aux principes FAIR pour la mise à disposition de mes données ? Dans quel entrepôt puis-je déposer mes données ? Comment publier en Open access ? etc. Le tout en tenant compte des spécificités disciplinaires et interdisciplinaires du DRIIHM.
Participantes:
Corinne PARDO, Mathieu MASSAVIOLLíder de projeto: Ana Rita Silva
Co-líders de projeto: Nazaret González-Alcaraz, Marija Prodana, Patrícia V. Silva, Susana Loureiro
Disciplinas:
BiologieClimatologieEcologieGeologiePalavras chave:
climate changeextreme eventsmultiple climate factorscontaminationecotoxicology.Resumo:
Although great efforts have been made over the last years, climate change continues to impact our planet. According to IPCC predictions, atmospheric CO2 levels and mean temperature are expected to continue rising jointly with the frequency/intensity/duration of extreme weather events (e.g., droughts and floods). The impact of climate change may be exacerbated in metal(loid)-contaminated areas, such as the Estarreja municipality, where ecosystems have been under stress for decades. TERRA aims to understand the effects of climate change alterations on the terrestrial and aquatic ecosystems, using contaminated soils from Estarreja. For that, extreme climate events/predicted climate change scenarios (including changes in combined climate factors according to IPCC) will be simulated to evaluate their effects on the ecotoxicity in terrestrial and aquatic inhabitants. Moreover, soil/water properties, e.g. pH, metal(loid) content, soil organic carbon, will be evaluated to establish the link between soil/water properties and effects under changing climate factors. Considering that extreme climate events have been reported in the last years in Portugal, the project intends to understand the dynamics behind contamination in this region after these events, by evaluating contamination level in Estarreja region five years later (by comparing with previous works). TERRA will provide crucial data for Portugal and worldwide regarding the consequences of climate changes in contaminated areas. The present project will also promote an easy and active communication with the society, with the final aim of increasing awareness about climate change and its environmental impacts.
Participantes:
María Nazaret González Alcaraz, Marija Prodana, Patrícia V. Silva, Susana LoureiroLíder de projeto: Sirine Bouguerra
Co-líders de projeto: João Oliveira-Pacheco, Anabela Cachada, Carla Patinha, Nuno Durães & Ruth Pereira
Disciplinas:
BiologiePalavras chave:
AGRICULTURAL SOILSMETAL(LOIDS)SALINIZATIONMAIZEBIOINOCULANTSPRODUCTIVITYResumo:
The threatens to agriculture soils from the Estarreja and Baixo Vouga Lagunar (BVL) regions include the combination of several anthropogenic and environmental factors, such as industrial pollution, intensive farming practices, overuse of fertilizers, the use of contaminated groundwater for irrigation, and salinization due to surface saltwater intrusion. For instance, these factors contributed to land degradation and therefore to crop productivity and safety decreasing. Maize (Zea mays L.) is one of the most important crops in these regions and boosting maize production in affected soils can have a significant socio-economic impact. Thus, the need of sustainable and eco-friendly solutions to improve productivity is one of the major challenges of agriculture activity in these regions. Estarreja and BVL may also be living labs, providing experience to other sites, where these approaches may be transferred. Several studies have demonstrated that inoculation with indigenous rhizobacteria can enhance plant performance and growth. Driven by described issues and based on knowledges acquired from our previous OHM projects (e.g: SoilGenomic, 2016; NotillAgri-Estarreja, 2017; Nameless, 2017; SoilSalt, 2017; SoilRice, 2018), this proposal aims to explore the potential of a consortium of indigenous plant growth-promoting rhizobacteria (PGPB) that are resistant to metal(loids) present in those soils, as well as PGPB well adapted to high levels of salinity and re-applied them to reduce problems associated with stressful environments via ex-situ bioinoculation of new seeds (before sowing) and in-situ bioinoculation of new plantlets. Accordingly, this may contribute to minimizing impacts on crops productivity and assure more sustainable agriculture practices.
Participantes:
Sirine Bouguerra, João Oliveira-Pacheco, Anabela Cachada, Carla Patinha, Nuno Durães, Ruth PereiraLíder de projeto: Nuno Durães
Co-líders de projeto: Carla Patinha, Anabela Cachada, Ruth Pereira, Luís Portela
Disciplinas:
BiogeochimieGeologiePalavras chave:
Alluvial soilsPotential toxic elementsREEsecotoxicology essaysbioaccumulationgeogenicanthropogenic inputsResumo:
The Baixo Vouga Laugar (BVL) is a very particular example of the harmonious coexistence between man and nature. This region, characterised by highly productive soils, enticed humankind to take advantage of its land and surface water reservoirs for the development of various agricultural practices (e.g., rice paddies, cornfields, pasture, among others). The high fertility of BVL's soils is owed to their development under the influence of alluvial deposits, materials with loamy texture, high porosity and marked organic matter enrichment. However, as demonstrated by the results obtained in other OHM projects, some of these soils are enriched in several potential toxic elements (PTEs). For this reason, the TracEnviSoil project intends to obtain a screening of the distribution of metal(loid)s of greater concern, as well as of rare earth elements (REEs), in order to ascertain the most probable sources (geogenic versus anthropogenic) of these trace elements, but also their (bio)availability and eco-toxicity in agriculture soils. This would allow to infer the potential risks for soil productivity, by creating harmful conditions for the soil microbiome and plant growth. Finally, the bioaccumulation of PTEs in the edible parts of plants will be evaluated in order to estimate the risk of their entry into the food chain, namely of animals and humans that feed on the vegetable products grown on these soils.
Participantes:
Carla Patinha, Anabela Cachada, Ruth Pereira, Luís PortelaLíder de projeto: Hugo Vieira
Co-líders de projeto: Maria Bordalo e Sá, Andreia Rodrigues, Diana Campos, Sónia Coelho, Sizenando Abreu and Fernando Morgado
Disciplinas:
BiologieChimieSante publiquePalavras chave:
Risk-benefits analysisSociety engagementEnvironmental and human healthFood safetyDietary guidelinesResumo:
Estarreja region, located nearby Ria de Aveiro, is widely known for its mercury (Hg) historical contamination (e.g. Largo do Laranjo) due to previous activities of a chlor-alkali industry. At the same time, a variety of fishing activities are usual in this lagoon. Due to its high nutritional value, fish and seafood consumption have been linked to the prevention of some human diseases, especially regarding cardiac and circulatory disorders. Unfortunately, fish and seafood are also considered as the major pathway of Hg exposure in humans. More than 90% of the Hg present in fish tissue is found mainly as methylmercury (MeHg), the most toxic form. Due to the potential adverse human health effects, international agencies have established Reference Doses (RfD) as recommendations concerning Hg intake. Despite the recognized importance of fish/seafood to the human Hg intake, studies that assess this exposure risk in Portugal have been focusing on only some species and mostly restricted to Academia. In addition, scientific language is often not clear for the general public. So, in order to contribute to a knowledge transfer from Academia to Society, this proposal aims to evaluate fish consumption habits and potential Hg exposure of Estarreja population and to develop and share tools with simple and precise language that will contribute to an informed decisions on the consumption of fish/seafood involving not only decision makers and but also the target population.
Participantes:
Hugo Vieira, Maria Bordalo e Sá, Andreia Rodrigues, Diana Campos, Sónia Coelho, Sizenando Abreu, Fernando MorgadoLíder de projeto: Flavio Silva
Co-líders de projeto: Luis Tarelho, Mara Madaleno
Disciplinas:
BiochimieBiologieChimiePalavras chave:
BioremediationBiofilmsBiocharSoil fertiliserProof-of-conceptResumo:
Over ten years the OHM-E has unravelled negative impacts of the industry on the quality of soils surrounding Estarreja. Yet, it is not all bad news. Previous research (DRuMBEAT) has conceptualized and tested a path for bioremediation of contaminated soils based on exploitation of their indigenous microbiomes coupled with biochar (pyrolysed biomass). Model organic contaminants in Estarreja-surrounding soils were successfully biodegraded by biochar-attached biofilms naturally engineered from contaminated soils, which proved them to be better adapted to inhibitory environments than those retrieved from “clean” sites. Though the hypotheses were successfully demonstrated, the biochar-microbial synergisms in contaminated soils surpassed the initial expectations by significantly boosting the biochemical activity, thus anticipating further benefits in development of a broader quality strategy for Estarreja soils. Additionally, biochar production can be tuned to target local-based feedstocks management, yield optimal porosity and redox chemistry to carry biofilms and immobilise contaminants, and provide further long-lasting fertilisation. While the former research answered to “How does it work?”, MOSAIC project aims at addressing “How feasible/profitable is it?” to consolidate and transfer the following purposes: (i) biochar can be produced from renewable feedstocks existing in Estarreja; (ii) pyrolysis parameters can be tuned to match both immobilisation of soil contaminants and controlled release of valuable plant nutrients; (iii) enhanced activity of the soil microorganisms enriched onto biochar benefits both soil remediation and fertility; and (iv) the microbial-laden biochar can turn into an innovative Estarreja-based fertiliser, providing that its agronomic value and cost-effectiveness are ensured through proper evaluation towards a proof-of-concept development.
Participantes:
Luis Tarelho, Mara MadalenoLíder de projeto: Renata Tavares
Disciplinas:
BiologieMedecineSante publiquePalavras chave:
ToxicologyIndustrial ContaminationHeavy MetalsFemale (In)FertilityFemale Reproductive PotentialResumo:
Exposure to toxicants generated from (or used in) industrial processes has contributed towards the decrease of female fertility and reproductive potential worldwide. Considering the increased risk of exposure in the modern world due to industrial growth, it is crucial the assessment of the reproductive potential of women living in an industrial-related area, particularly if there is already a history of local contamination. The city of Estarreja presents the second largest chemical complex in Portugal and contamination of heavy metals was earlier reported. After efforts to counteract this issue, the fertility and reproductive potential of women from Estarreja is still lacking. Importantly, heavy metal measurements in women folicular fluid will be performed and using an in vitro animal model system developed in our lab we will further unveil if female reproductive potential is affected. Oocyte maturation and both oocyte and cumulus cells viability will be evaluated as well as indicators of oxidative stress. Finally, other parameters of oocyte quality such as ooplasmic volume, spindle configuration and chromossomal alignment will be analyzed. Further lectures addressing environmental pollution and its implications on female, and general human fertility will be given to infants and teenagers at schools of the municipality.
Participantes:
Teresa Almeida Santos, João Ramalho-Santos, Ana Paula Sousa, Maria Inês Alfaiate, Maria SoaresLíder de projeto: Anabela Cachada
Co-líders de projeto: Ruth Pereira, Nuno Durães, Carla Patinha
Disciplinas:
ChimieEcologieGeologieSante publiquePalavras chave:
Volatile Organic ContaminantsPotentially Toxic ElementsPotential risksSoil saturated layerContamination hotspotsResumo:
The Estarreja Chemical Complex (ECC), composed essentially by chemical plants that produce, among others, aniline, nitrobenzene, PVC, isocyanide polymers of aromatic base and polystyrene polymers for thermal isolation, has been pointed as a major threat to the environment and to public health in the region. For decades, the different ECC industries disposed off solid wastes directly on the permeable sands without containment, and untreated liquid effluents were discharged directly on streams connected to the coastal lagoon. Due to the geological features (unconsolidated detritic sedimentary rocks) of this region, that allows the contaminant’s dispersion, there is a high vulnerability of the aquifer to environmental hazards. Although waste management practices improved significantly in the last years, there are still signs of groundwater contamination. Indeed, previous studies indicate that the ECC is a vulnerable area due to the presence of multiple pressures (agriculture, industry and urban activities) and hotspots of organic and inorganic contaminants were already identified. However, there is a space-temporal variation of these hotspots that was not yet fully understood and it is not clear yet how contaminants are reaching the aquifer. Thus, this project aims at understand the dynamics behind the groundwater contamination and the processes that result in specific hotspots, and consequently identify sources and pathways of contaminants. Moreover, since some of the contaminants previously identified are classified as carcinogenic and highly toxic, the potential risks to the environment and human health will be also evaluated.
Participantes:
Ruth Pereira, Nuno Durães, Patinha CarlaLíder de projeto: Sofia Bento
Co-líders de projeto: Christelle Gramaglia
Disciplinas:
AnthropologieHydrologieSociologiePalavras chave:
expérimentation collaborativerecherche-actionrisquesincertitudessantéenvironnementResumo:
Le projet AGORARISK propose une recherche-action destinée à favoriser le dialogue entre chercheurs, citoyens et agents de l’Etat autour des incertitudes et des risques environnementaux et sanitaires sur le Complexe Chimique d'Estarreja. Plus précisément, il vise à comprendre les conditions de possibilité de dialogue et de travail en commun entre mondes différents pour expérimenter et coproduire des outils susceptibles de réduire le clivage existant entre savoirs scientifiques et savoirs citoyens. La région d'Estarreja a fait l’objet de nombreuses études, mais des recherches récentes ont mis en évidence des lacunes importantes en matière de communication à propos des risques. Les situations de débat avec la population impliquant élus, scientifiques et agents de l’Etat sont rares. Les conséquences sont des tensions et une perte de confiance. Alors que côté scientifique, des données sont bien disponibles puisque plusieurs équipes nationales et internationales de chercheurs s’intéressent aux problèmes de contamination à Estarreja. Nous désirons œuvrer à faciliter le rapprochement des différents acteurs locaux qui vivent avec la pollution au quotidien en créant de façon expérimentale les conditions d’un dialogue sur les incertitudes et les risques de contamination. L’implication des populations est une dimension urgente dans ce contexte précis et ne peut exister qu’à travers de nouvelles formes d’organisation du débat adaptées au contexte sociohistorique. Notre projet propose une approche expérimentale participative de façon à encourager les chercheurs à travailler avec les acteurs locaux et à inciter les populations à découvrir le monde de la recherche sous un nouveau regard.
Participantes:
Christelle Gramaglia, Cristina Larrea-Killinger, Katrin Erdlenbruch, Lucia Fernandes, Teresa CONDESSO DE MELOLíder de projeto: Ruth Pereira
Co-líders de projeto: Anabela Cachada, Carla Patinha, Nuno Durães
Disciplinas:
BiologieChimiePalavras chave:
Soil Reference ValuesPotential Toxic ElementsRisk AssessmentResumo:
Soil Reference Values (SRV) for potentially toxic elements (PTEs) are of utmost importance for the first tier of risk assessment of contaminated sites. The Portuguese Environmental Agency has recently proposed SRV for soil, based on their used, but the type of soil was not taken into account. However, and giving the role of soil properties on the mobility and bioavailability of contaminants it is widely recognized that SRV should be defined for different types of natural soils, or at least, they should allow readjustments based in the content of organic matter and clay of the target soil. In this context, to refine the ability of predicting the risks of contaminants affecting the soils, nearby the Estarreja Chemical Complex (ECC), this project aims to derive SRV for the main PTEs of concern in the area (As, Pb and Cu), by using a reference regosol, which is the particular type of soil that can be found in the area. This reference regosol will be the deliverable that will increase the afterlife duration of the project, as it will be useful for the future derivation of SRV for other PTEs, including organic contaminants.
Participantes:
Anabela Cachada, Carla Patinha, Nuno Durães, Ruth Pereira, Verónica NogueiraLíder de projeto: Patrícia Santos
Disciplinas:
ChimieHydrologieSante publiquePalavras chave:
RainwaterPAHsinorganic contaminantssource assessmentenvironment riskhuman riskResumo:
The atmospheric pollution in Estarreja is a matter of concern, and its impacts on terrestrial and aquatic ecosystems, as well as on human health, are still unknown. A previous project studied the chemical composition of rainwater in Estarreja and identified that local rainwater contains some contaminants, such as polycyclic aromatic hydrocarbons (PAHs) and metals, with higher content at the industrial area than at a nearby background site, suggesting that industrial area may be a focus of contaminant emissions. The present project intends to evaluate whether five years later the industrial activities in Estarreja continues contributing for the emission of contaminants into the atmosphere, namely PAHs, metals and ionic constituents, which are then removed by precipitation. Thus, rainwater samples will be collected during one year simultaneously in different sites at the industrial area, and in an industrial background. The results from this study will be important to understand the sources of contamination in the industrial area of Estarreja, and to evaluate space-time changes, as well as the impacts of the contaminants on the environment and human beings (since rainwater is a way of availability of freshwater). In addition, the results will contribute to adopt strategies to reduce emissions of air pollutants, and to mitigate adverse effects to the environment and human health.
Participantes:
Armando Duarte, Mário Cerqueira, Anabela Cachada, Gabriela SantosLíder de projeto: Heliana Teixeira
Co-líders de projeto: Ana I. Lillebø, Ana I. Sousa, Pedro Coelho, Ana Genua-Olmedo
Palavras chave:
EelgrassLocal ExtinctionsPassive RestorationStakeholder ConflictsParticipatory ApproachesResumo:
The eelgrass Zostera marina L. once covered large areas in the Ria de Aveiro coastal but is reported locally extinct since 2010. A recent discovery of a new patch of Z. marina, locally known as “Fita”, reinitiates the history of local extinction-recolonisation episodes for this emblematic species in Ria de Aveiro Natura 2000 coastal lagoon. The FITA project proposes five passive restoration actions to bring together local stakeholders and protect the new population from eminent stressors in the short-term. FITA will gather knowledge on the local population dynamics and species features, for improving conservation in the mid-term. Finally, it will promote participatory approaches for reducing conflicts and promote sustainable use of space and natural resources in the long-term. FITA goal is to trigger action towards the protection and restoration of this vulnerable species, considered a priority habitat under EU Habitats Directive.
Participantes:
Heliana Teixeira, Ana I. Lillebø, Ana I. Sousa, João Pedro Martins Coelho, Ana Genua-OlmedoLíder de projeto: Fabienne Wateau
Co-líders de projeto: Daniela Figueiredo, Johnny Reis, Carmem Giongo
Disciplinas:
AnthropologieBiologieEcologieHistoirePsychologieSante publiqueSocio-anthropologiePalavras chave:
Anthropologie socialesensibilisation environnementaleparticipation citoyennepopulationsécolerestitutionprotection civileResumo:
Ce projet s'inscrit dans la thématique 1 : Évolution des rapports entre société et environnement, sous le volet Recherche participative : modifications des comportements et perception de l'information disponible en matière d'environnement. Il propose une recherche interdisciplinaire menée en interaction avec la population d'Estarreja et repose sur trois volets : des ateliers d’expériences de mesures avec des adolescents dans le cadre de leur cours de biologie à l’école ; des réunions de sensibilisation à l’environnement et à la sécurité avec des acteurs de la protection civile ; et des entretiens avec des habitants utilisateurs de la terre et de l’eau, dont certaines personnes âgées aux pratiques inscrites dans le temps long sur l’espace considéré. L’objectif est un enregistrement des savoirs et pratiques concernant les usages et les connaissances en matière d’environnement, sur un support audio, vidéo et photographique, en vue du montage d’un film pouvant être présenté à la population.
Participantes:
Daniela FIGUEIREDO, Johnny REIS, Carmem GIONGOLíder de projeto: Daniela Figueiredo
Co-líders de projeto: Carina Lopes, Renato Mendes, Nuno Vaz, João Dias
Disciplinas:
BiogeographieGeoreferencementGeospatialisationPalavras chave:
EstarrejaAgricultural land useRemote sensingLandsatNDVINDWIResumo:
Agriculture is still a key sector for the local economy at Estarreja region, which has been suffering from several environmental pressures over the past decades. A strong heritage related to the released untreated effluents from industrial activity before the nineties is still present in many of the fields used for agriculture, with persistently high levels of contamination. Additionally, the region is also under the permanent threat of fluvial flooding and of saline intrusion, which is expected to intensify in the future as a consequence of the intensification of extreme weather events (floods and droughts) and mean sea level rise induced by Climate Change, hindering crop yields and severely affecting the local agriculture-based economy. The AGREST project aims to make a spatiotemporal perspective of the agricultural use of the land during the past 35 years at Estarreja region, using Earth Observation data based on Landsat records. Information on the occurrence of river floods, droughts, episodes of saltwater intrusion and discharge of untreated industrial effluents will also be retrieved and related to impacts on crop production. Awareness actions for farmers presenting free available remote sensing applications for crop management will be carried out.
Participantes:
Carina Lopes, Renato Mendes, Nuno Vaz, João DiasLíder de projeto: Renata Tavares
Disciplinas:
BiologieMedecineSante publiquePalavras chave:
INDUSTRIAL EXPOSUREHEAVY METALSSPERM QUALITY AND FUNCTIONMALE (IN)FERTILITYMALE REPRODUCTIVE HEALTHPUBLIC HEALTHResumo:
Exposure to toxicants originated from (or used in) industrial processes has shown to contribute towards the global decrease of male fertility and reproductive health status. Considering that the risk of exposure in the modern world is increasing due to industrial growth, it became imperative to assess the sperm quality and function and overall reproductive health status of populations living in an industrial-related area, particularly if there is already a history of local contamination. To this extent, the city of Estarreja encloses the second largest chemical complex in Portugal and contamination of heavy metals has been reported. The present pilot study, therefore, intends to use a representative sample of Estarreja’s adult population and unveil the male reproductive phenotype signature induced by these toxicants. Importantly, parameters of sperm quality as concentration, motility and morphology will be evaluated along with more accurate functional indicators of sperm fertilizing ability such as mitochondrial function, chromatin/DNA integrity, acrosome status and viability, often disregarded in this type of studies. Furthermore, the function of accessory sex organs will be determined in seminal plasma given their importance in seminal fluid production and sperm maturation. A representative sample of adult men from the Center region of Portugal will be used as control group.