Pas d'enregistrements
Ruth Pereira
2020
Is4RISK- derivation of soil reference values for potentially toxic elements (As, Pb and Cu) by using a regosol representive of Estarreja soils
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.
Anabela Cachada
2019
@10 years - Ten years of OHM: data compilation for a holistic environmental and human health risk assessment
Estarreja is known for its chemical complex, and several studies were performed in the region to evaluate the presence of contaminants in environmental matrices. Some hotspots of contamination were identified, nevertheless, the real dimension of the problem, i.e. the spatial distribution of organic and inorganic contaminants and the potential risks to the environment and human health, is not well understood. Indeed, despite decades of research and almost ten years after the OHM-Estarreja creation, it is still not clear if we are dealing with a contamination or with a real pollution problem. The reason why this issue was not yet clarified is related with the complexity of the problem (several matrices, types of contaminants and land uses; legacy of the past vs recent contamination) and because most of the studies are focused on a specific question and the data are scattered. In this context, a risk assessment analysis, is the best available tool to clearly understand the problem and to identify knowledge gaps. Thus, this study aims at collect and integrate existing data to understand the spatial distribution of contaminants, identify areas and contaminants of concern, the receptors and the ecosystem services at risk. As a final output it is intended to obtain a conceptual model that will support decisions regarding the management of this area as well as implementation of an analysis, monitoring or a remediation program. This will contribute for focusing the management of future OHM funds for achieving the ambitious goal of mitigating Estarreja environmental legacy.
Andrés Andrés Rodríguez Seijo
2018
MATiSSe - Microplastics on AgriculTural SoilS: assessment of their impact on physical, chemical and biological soil properties
This project proposes to study the impact of Microplastics in agricultural soils, though the assessment of several soil properties: physical (soil texture, soil structure and bulk density), chemical (pH, cation exchange capacity, organic matter, potentially toxic elements and compounds) and biological properties (soil enzymatic activity and/or soil organisms). Although this project could be developed in any region, Estarreja region offers an exceptional environment due to having a mixed area of agricultural and industrial activities, where MPs can act as carriers of potentially toxic elements and compounds, as reported for aquatic ecosystems. Further, insights brought by this project can be useful to support the development of soil management measures specifically targeting the restoration of the quality of soils from Estarreja.
Jean-Philippe Bedell
2017
Bioavailability and ecotoxicology assessment of organic contaminants presents in Estarreja soils
Soil, an important environmental compartment, is largely affected daily by anthropogenic activities such as industries, traffic and waste disposal. These activities can bring to the soils large quantities of several contaminants and consequently they can easily enter the food chain and the trophic scale of ecosystems via plants and animals.
Jean-Philippe Bedell
2017
Ecotoxicological and human health risk assessment of organic contaminants in Estarreja area and Rhône valley.
Soil, an important environmental compartment, is largely affected daily by anthropogenic activities such as industries, traffic and waste disposal. These activities can bring to the soils large quantities of several contaminants and consequently they can easily enter the food chain and the trophic scale of ecosystems via plants and animals.
OHM Estarreja OHM Vallée du Rhône
Ruth Pereira
2017
NAMELESs - Nanomaterials for the Remediation of agriculture Metal contaminated soils surrounding the Estarreja chemical complex
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.
Manuela Inácio
2015
Ecotoxicological and human health risk assessment of organic contaminants in Estarreja area – preliminary studies
Environmental matrices such as soils, plants, superficial waters and aquatic organisms can be an indicator of the environmental pollution since they could contain high levels of organic pollutants (OPs) influencing the environment quality and consequently human health. OPs are resistant to degradation and can persist for long times in the environment. These compounds can be transported by wind for long distances and can also easily enter the food chain. People are exposed to OPs by ingestion, inhalation and dermal uptake, causing adverse effects in human health due to their carcinogenic and mutagenic nature.
