Featured projects (1)
The main scope of the project is the production of an innovative photocatalytic paint, which aims at improving the quality of the indoor environment while it will enable significant energy savings in buildings.The project main objectives are: 1. Development of a sophisticated Decision Support System (DSS) which will serve as a multicriteria support tool towards studying the efficiency of the proposed solutions, processes and methods in future applications. It will be based on the outcomes of the Cost Efficiency Analysis (CEA), the Cost Benefit Analysis (CBA) and the Life Cycle Assessment (LCA). 2. Establishment of a start-up (or spin-off) company that will undertake the production, exploitation and commercialization of the products (Photo-Paints) on various building envelop matrices. The nanotechnology and products refined and applied in VISIONS have considerable commercial potential as there is nothing comparable on the market. 3. Optimization and Upscaling of a novel photocatalytic material, namely TCM-1, which was developed in lab-scale through an IP FP7 project (CLEAR-UP) for an effective air de-pollution and energy efficiency. The novelty of the proposed material is protected by patents (European, Chinese). 4. Semi-industrial production of innovative photocatalytic paints (Photo-Paints) by incorporating the TCM-1 in various types of paints for real scale applications. 5. Real scale application of three innovative Photo-Paints in a set of existing Demo-Houses prototype demonstrator. Real Life applications of the most promising Photo-Paint for the abatement of indoor air pollution in two public buildings (Military hospital and Military Office building) will follow. 6. Assessment of the effectiveness of the Photo-Paint for large scale applications through the application of a state of the art numerical modelling (CFD) for different scenarios for the application of the proposed covering technology. 7. Development of performance indicators for evaluation of the photocatalytic efficiency 8. Development of Management, Communication and Dissemination strategy of the project. website: https://lifevisions.gr/project-info/
Featured research (2)
Industrial activities nearby residential areas lead to poor local air quality. Therefore, short-term exposure to an aggravated environment and the subsequent health effects should be the subject of further research. The purpose of this study is to estimate the health risks resulting from such exposure in population groups living in an industrialized area. The risk estimation was performed using different approaches suggested in relative literature. Monitoring of the air quality in an industrial zone of Attica was carried out including 24-h measurements of PM2.5 and analysis of their chemical composition for Polycyclic Aromatic Hydrocarbons and heavy metals (Pb, Cd, As, Ni, Hg, Cu, Zn). Samples of Volatile Organic Compounds were also collected. Health effects on different population subgroups were estimated for the targeted pollutants through different mathematical approaches provided by the literature, taking into consideration different parameters (e.g., age, gender, exposure duration). Inhalation rate and body weight were important parameters to estimate the exposure dose of people, and they can vary greatly depending on the age, gender, and daily activity of the person under consideration. The results indicated that the risk for potential carcinogenic and non-carcinogenic effects varies depending on the applied methodology. In any case, the acceptable limits for cancer risk provided by the OEHHA, EPA, and WHO were not exceeded.
House settled dust (HSD) contains various hazardous materials, including polycyclic aromatic hydrocarbons (PAHs) and metals. Exposure to toxicants contained in HSD is of paramount concern especially in the case of young children, due to their particular behavioral characteristics. In this context, extracts of sieved vacuum cleaner dust from 20 residences with young children were examined for the presence of PAHs and trace metals, in Athens, Greece. The results indicated that PAHs and metals were ubiquitous in the studied residences. The calculated enrichment factors (EF) of trace metals indicated that Cu, Se, Zn, Hg, Cd, and Pb were mainly of anthropogenic. According to the PCA analysis, the main sources of household dust were: smoking inside the houses, combustion processes, resuspension of soil dust, and vehicle traffic. In general, the cancer risk due to PAHs exposure was found lower than the threshold value. The ingestion of house dust was the most important route of exposure to metals. The dose of almost all elements for the children was found 1–2 orders of magnitude lower than the corresponding reference values. Both the carcinogenic and noncarcinogenic risks of exposure were within the safety limits.