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Air quality monitoring is a long-term assessment of pollutant levels that helps to assess the extent of pollution and provide information about air quality trends
Thomas Maggos. Advances in Air Quality Monitoring and Assessment. Applied Sciences 2021, 11, 5817 .
AMA StyleThomas Maggos. Advances in Air Quality Monitoring and Assessment. Applied Sciences. 2021; 11 (13):5817.
Chicago/Turabian StyleThomas Maggos. 2021. "Advances in Air Quality Monitoring and Assessment." Applied Sciences 11, no. 13: 5817.
Climate change is set to affect extreme climate and meteorological events. The combination of interacting physical processes (climate drivers) across various spatial and temporal scales resulting to an extreme event is referred to as compound event. So far, climate change impacts on compound events in Greece such as daily cold-wet events have not been explored. The complex geography and topography of Greece forms a variety of regions with different local climate and a great range in daily minimum temperature and precipitation distributions. This leads to the assumption that there we will also observe a variety in the distribution of cold-wet events depending on the region. Aim of our study in this work is first to identify the cold-wet events based on observational data and then to examine the predictive capability of regional different climate models and ERA-Interim against observations from the Hellenic National Meteorological Service (HNMS) stations for the occurrence of cold-wet compound events in the present climate. The study will focus on the colder and wetter period of the year (November-April) to determine the extremes for this period. Specifically, the datasets employed are from two EURO-CORDEX Regional Climate Models (RCMs) with 0.11° horizontal resolution and validated ERA-Interim Reanalysis downscaled with the Weather Research and Forecasting (WRF) model at 5km horizontal resolution, for the historical period 1980-2004. In particular, the RCM datasets analyses have been produced from SMHI-RCA4 driven by MPI-M-MPI-ESM-LR Global Climate Model (GCM) and CLMcom-CLM-CCLM4-8-17 driven by MOHC-HadGEM2-ES GCM. After the comparison with the observations, the gridded data from the models will give us the ability to observe the spatial distribution of the compound events.
Iason Markantonis; Diamando Vlachogiannis; Thanasis Sfetsos; Ioannis Kioutsioukis; Nadia Politi. An Investigation of cold-wet Compound Events in Greece. 2021, 1 .
AMA StyleIason Markantonis, Diamando Vlachogiannis, Thanasis Sfetsos, Ioannis Kioutsioukis, Nadia Politi. An Investigation of cold-wet Compound Events in Greece. . 2021; ():1.
Chicago/Turabian StyleIason Markantonis; Diamando Vlachogiannis; Thanasis Sfetsos; Ioannis Kioutsioukis; Nadia Politi. 2021. "An Investigation of cold-wet Compound Events in Greece." , no. : 1.
Climate change will exert a considerable influence across the area of Greece with temperature and precipitation extreme events becoming more frequent creating significant impacts on many societal and economic sectors. Future projections based on a range of anthropogenic scenarios show that decreases of annual rainfall amounts associated with increases of heat-waves and droughts are anticipated in several regions of Greece. Τhe Weather Research and Forecasting (WRF) model has appropriately been set-up and parameterized with a high spatial resolution of 5 km for the area of Greece. Previous research has revealed the capability of the configured WRF high resolution model to reproduce the main climatological variables in this region, which is dominated by highly variable topographic characteristics. The scope of this study is to investigate climate change projections for indices that express human‐perceived temperature extremes such as the Humidity index (Humidex), Wind Chill index (WCI) and Heat stress index (HI) in order to evaluate the potential impact on human health. These indices use different meteorological variables or a combination of them such as temperature, relative humidity and wind speed. The computation of these indices is based on daily simulated data, under two different scenarios (RCP4.5 and RCP 8.5) and periods (2025-2049 and 2075-2099) compared to present climate conditions (1980-2004). Downscaled results are derived from the global EC-EARTH model dataset, used for initial and boundary conditions. Our findings contribute to the quantification of future changes as well as on the identification of potential areas that might become prone to different degrees of heat/cold stress over the area of Greece.
Nadia Politi; Diamando Vlachogiannis; Athanasios Sfetsos; Iason Markantonis. Future Projections of heat and cold stress based on two RCP Scenarios over Greece. 2021, 1 .
AMA StyleNadia Politi, Diamando Vlachogiannis, Athanasios Sfetsos, Iason Markantonis. Future Projections of heat and cold stress based on two RCP Scenarios over Greece. . 2021; ():1.
Chicago/Turabian StyleNadia Politi; Diamando Vlachogiannis; Athanasios Sfetsos; Iason Markantonis. 2021. "Future Projections of heat and cold stress based on two RCP Scenarios over Greece." , no. : 1.
Safety in touristic destinations is of utmost importance since tourists’ preferences change frequently in response to emerging threats. Natural hazards are a significant risk and, as such, they need to be considered in the effort for safe tourism. Services and systems monitoring and predicting extreme natural phenomena and disasters in sites of special tourist and cultural interest can lead to more effective risk management and incident response. This paper presents Xenios, a system under development in Greece that provides early warning and risk communication services via web-based and mobile phone applications. We present the user requirements analysis contacted, which led to the design of a modular system architecture through a formal Business Process Model procedure. Currently, early warning systems for wildfire, floods, and extreme weather events are offered, based on a fusion of information from satellite imagery, meteorological forecasts, and risk estimation models. Moreover, visitors’ dispersion monitoring via unmanned aerial vehicles (UAVs) and Wi-Fi connection signals is also offered, along with emergency response planning and ticketing system’s interfacing. The system is built around a modular architecture that permits the easy integration of new subsystems or other danger forecasting modules, depending on the site’s actual needs and limitations. Xenios also provides a mobile app for site visitors, which establishes a communication link for sending alarms, but also serves them with useful tourist information, so that they are encouraged to download and use the app. Finally, the opportunities for supporting a viable business model are also discussed. The results of this study could prove useful in designing other natural risk management systems for sites of cultural and natural interest.
Chrysostomos Psaroudakis; Gavriil Xanthopoulos; Dimitris Stavrakoudis; Antonios Barnias; Vassiliki Varela; Ilias Gkotsis; Anna Karvouniari; Spyridon Agorgianitis; Ioannis Chasiotis; Diamando Vlachogiannis; Athanasios Sfetsos; Konstantinos Kaoukis; Aikaterini Christopoulou; Petros Antakis; Ioannis Gitas. Development of an Early Warning and Incident Response System for the Protection of Visitors from Natural Hazards in Important Outdoor Sites in Greece. Sustainability 2021, 13, 5143 .
AMA StyleChrysostomos Psaroudakis, Gavriil Xanthopoulos, Dimitris Stavrakoudis, Antonios Barnias, Vassiliki Varela, Ilias Gkotsis, Anna Karvouniari, Spyridon Agorgianitis, Ioannis Chasiotis, Diamando Vlachogiannis, Athanasios Sfetsos, Konstantinos Kaoukis, Aikaterini Christopoulou, Petros Antakis, Ioannis Gitas. Development of an Early Warning and Incident Response System for the Protection of Visitors from Natural Hazards in Important Outdoor Sites in Greece. Sustainability. 2021; 13 (9):5143.
Chicago/Turabian StyleChrysostomos Psaroudakis; Gavriil Xanthopoulos; Dimitris Stavrakoudis; Antonios Barnias; Vassiliki Varela; Ilias Gkotsis; Anna Karvouniari; Spyridon Agorgianitis; Ioannis Chasiotis; Diamando Vlachogiannis; Athanasios Sfetsos; Konstantinos Kaoukis; Aikaterini Christopoulou; Petros Antakis; Ioannis Gitas. 2021. "Development of an Early Warning and Incident Response System for the Protection of Visitors from Natural Hazards in Important Outdoor Sites in Greece." Sustainability 13, no. 9: 5143.
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.
A. Stamatelopoulou; M. Dasopoulou; K. Bairachtari; S. Karavoltsos; K. Sakellari; T. Maggos. Contamination and Potential Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) and Heavy Metals in House Settled Dust Collected from Residences of Young Children. Applied Sciences 2021, 11, 1479 .
AMA StyleA. Stamatelopoulou, M. Dasopoulou, K. Bairachtari, S. Karavoltsos, K. Sakellari, T. Maggos. Contamination and Potential Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) and Heavy Metals in House Settled Dust Collected from Residences of Young Children. Applied Sciences. 2021; 11 (4):1479.
Chicago/Turabian StyleA. Stamatelopoulou; M. Dasopoulou; K. Bairachtari; S. Karavoltsos; K. Sakellari; T. Maggos. 2021. "Contamination and Potential Risk Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) and Heavy Metals in House Settled Dust Collected from Residences of Young Children." Applied Sciences 11, no. 4: 1479.
The present work introduces a case study on the climate resilience of interconnected critical infrastructures to forest fires, that was performed within the framework on H2020 EU-CIRCLE project (GA 653824). It was conducted in South France, one of the most touristic European regions, and also one of the regions at the highest forest fire risk that is projected to be amplified under future climate conditions. The case study has been implemented through a co-creation framework with local stakeholders, which is critical in moving beyond physical damages to the infrastructures, introducing the elements of infrastructure business continuity and societal resilience. Future forest fires extremes are anticipated to impact the interconnections of electricity and transportation networks that could further cascade to communities throughout South France. The work highlighted the benefits of enhancing co-operation between academia, emergency responders, and infrastructure operators as a critical element in enhancing resilience through increased awareness of climate impacts, new generated knowledge on fire extremes and better cooperation between involved agencies.
Athanasios Sfetsos; Frederique Giroud; Alice Clemencau; Vassiliki Varela; Catherine Freissinet; Jean Lecroart; Diamando Vlachogiannis; Nadia Politi; Stelios Karozis; Ilias Gkotsis; George Eftychidis; Ralf Hedel; Stefan Hahmann. Assessing the Effects of Forest Fires on Interconnected Critical Infrastructures under Climate Change. Evidence from South France. Infrastructures 2021, 6, 16 .
AMA StyleAthanasios Sfetsos, Frederique Giroud, Alice Clemencau, Vassiliki Varela, Catherine Freissinet, Jean Lecroart, Diamando Vlachogiannis, Nadia Politi, Stelios Karozis, Ilias Gkotsis, George Eftychidis, Ralf Hedel, Stefan Hahmann. Assessing the Effects of Forest Fires on Interconnected Critical Infrastructures under Climate Change. Evidence from South France. Infrastructures. 2021; 6 (2):16.
Chicago/Turabian StyleAthanasios Sfetsos; Frederique Giroud; Alice Clemencau; Vassiliki Varela; Catherine Freissinet; Jean Lecroart; Diamando Vlachogiannis; Nadia Politi; Stelios Karozis; Ilias Gkotsis; George Eftychidis; Ralf Hedel; Stefan Hahmann. 2021. "Assessing the Effects of Forest Fires on Interconnected Critical Infrastructures under Climate Change. Evidence from South France." Infrastructures 6, no. 2: 16.
Research on air quality issues in recently refurbished educational buildings is relatively limited. However, it is an important topic as students are often exposed to high concentrations of air pollutants, especially in urban environments. This study presents the results of a 25-day experimental campaign that took place in a primary school located in a densely built-up area, which retains a green roof system (GRS). All measurements refer to mass concentrations and chemical analysis of PM10 (particulate matter less than 10 micrometers), and they were implemented simultaneously on the GRS and within the classroom (C3) below during different periods of the year. The results demonstrated relatively low levels of PM10 in both experimental points, with the highest mean value of 72.02 μg m−3 observed outdoors during the cold period. Elemental carbon (EC) was also found be higher in the ambient environment (with a mean value of 2.78 μg m−3), while organic carbon (OC) was relatively balanced between the two monitoring sites. Moreover, sulfate was found to be the most abundant water soluble anion (2.57 μg m−3), mainly originating from ambient primary SO2 and penetrating into the classroom from windows. Additionally, the crustal origin of particles was shown in trace metals, where Al and Fe prevailed (9.55% and 8.68%, respectively, of the total PM10). Nevertheless, infiltration of outdoor particles within the classroom was found to affect indoor sources of metals. Finally, source apportionment using a positive matrix factorization (PMF) receptor model demonstrated six main factors of emissions, the most important of which were vehicles and biomass burning (30.30% contribution), along with resuspension of PM10 within the classroom from human activities (29.89% contribution). Seasonal variations seem to play a key role in the results.
Nikolaos Barmparesos; Dikaia Saraga; Sotirios Karavoltsos; Thomas Maggos; Vasiliki D. Assimakopoulos; Aikaterini Sakellari; Kyriaki Bairachtari; Margarita Niki Assimakopoulos. Chemical Composition and Source Apportionment of PM10 in a Green-Roof Primary School Building. Applied Sciences 2020, 10, 8464 .
AMA StyleNikolaos Barmparesos, Dikaia Saraga, Sotirios Karavoltsos, Thomas Maggos, Vasiliki D. Assimakopoulos, Aikaterini Sakellari, Kyriaki Bairachtari, Margarita Niki Assimakopoulos. Chemical Composition and Source Apportionment of PM10 in a Green-Roof Primary School Building. Applied Sciences. 2020; 10 (23):8464.
Chicago/Turabian StyleNikolaos Barmparesos; Dikaia Saraga; Sotirios Karavoltsos; Thomas Maggos; Vasiliki D. Assimakopoulos; Aikaterini Sakellari; Kyriaki Bairachtari; Margarita Niki Assimakopoulos. 2020. "Chemical Composition and Source Apportionment of PM10 in a Green-Roof Primary School Building." Applied Sciences 10, no. 23: 8464.
This work introduces a methodology for assessing near-future fire weather pattern changes based on the Canadian Fire Weather Index system components (Fire Weather Index (FWI), Initial Spread Index (ISI), Fire Severity Rating (FSR)), applied in touristic areas in Greece. Four series of daily raster-based datasets for the fire seasons (May–October), concerning a historic (2006 to 2015) and a future climatology period (2036–2045), were created for the areas under consideration, based on high-resolution climate modelling with the Representative Concentration Pathway (RCP), PCR 4.5 and RCP 8.5 scenarios. The climate model data were obtained from the European Coordinated Downscaling Experiment (EURO-CORDEX) climate database and consisted of atmospheric variables as required by the FWI system, at 12.5 km spatial resolution. The final datasets of the abovementioned variables used for the study were processed at 5 km spatial resolution for the domain of interest after applying regridding based on the nearest neighbour interpolating process. Geographic Information Systems (GIS) spatial operations, including spatial statistics and zonal analyses, were applied on the series of the derived daily raster maps in order to provide a number of output thematic layers. Moreover, historic FWI percentile values, which were estimated for Greece in the frame of a past research study of the Environmental Research Laboratory (EREL), were used as reference data for further evaluation of future fire weather changes. The straightforward methodology for the assessment of the evolution of spatial and temporal distribution of Fire weather Danger due to climate change presented herewith is an essential tool for enhancing the knowledge for the decision support process for forest fire prevention, planning and management policies in areas where the fire risk both in terms of fire hazard likelihood and expected impact is quite important due to human presence and cultural prestige, such as archaeological and tourist protected areas.
Vassiliki Varela; Diamando Vlachogiannis; Athanasios Sfetsos; Nadia Politi; Stelios Karozis. Methodology for the Study of Near-Future Changes of Fire Weather Patterns with Emphasis on Archaeological and Protected Touristic Areas in Greece. Forests 2020, 11, 1168 .
AMA StyleVassiliki Varela, Diamando Vlachogiannis, Athanasios Sfetsos, Nadia Politi, Stelios Karozis. Methodology for the Study of Near-Future Changes of Fire Weather Patterns with Emphasis on Archaeological and Protected Touristic Areas in Greece. Forests. 2020; 11 (11):1168.
Chicago/Turabian StyleVassiliki Varela; Diamando Vlachogiannis; Athanasios Sfetsos; Nadia Politi; Stelios Karozis. 2020. "Methodology for the Study of Near-Future Changes of Fire Weather Patterns with Emphasis on Archaeological and Protected Touristic Areas in Greece." Forests 11, no. 11: 1168.
Despite the various reduction policies that have been implemented across Europe in the past few years, Particulate Matter (PM) exceedances continue to be recorded. Therefore, with the principal aim to clarify the complex association between emissions and fine particles levels, this work evaluates the impact of the anthropogenic contribution to the fine PM chemical profile. The fieldwork was conducted during March in 2008 and 2013 and covers the periods before and during the economic recession. The experimental data were analyzed in parallel with the emissions from the Flexible Emission Inventory for Greece and the Greater Athens Area (FEI-GREGAA). The differentiation of the mass closure results’ and the aerosols’ character is also discussed in combination with the calculated PM2.5-Air Quality Indexes. The peak in the PM load and the Particulate Organic Matter (POM) component was recorded in 2013, corresponding to the enhancement of the anthropogenic input. Although the monitoring location is traffic-impacted, the sector of heating, from both wood burning and fossil fuel, proved to be the driving force for the configuration of the obtained PM picture. Especially in 2013, its contribution was two times that of traffic. Finally, the low wind speed values led to the deterioration of the air quality, especially for the sensitive groups.
Styliani Pateraki; Kyriaki-Maria Fameli; Vasiliki Assimakopoulos; Kyriaki Bairachtari; Alexandros Zagkos; Theodora Stavraka; Aikaterini Bougiatioti; Thomas Maggos; Nikolaos Mihalopoulos. Differentiation of the Athens Fine PM Profile during Economic Recession (March of 2008 versus March of 2013): Impact of Changes in Anthropogenic Emissions and the Associated Health Effect. Atmosphere 2020, 11, 1121 .
AMA StyleStyliani Pateraki, Kyriaki-Maria Fameli, Vasiliki Assimakopoulos, Kyriaki Bairachtari, Alexandros Zagkos, Theodora Stavraka, Aikaterini Bougiatioti, Thomas Maggos, Nikolaos Mihalopoulos. Differentiation of the Athens Fine PM Profile during Economic Recession (March of 2008 versus March of 2013): Impact of Changes in Anthropogenic Emissions and the Associated Health Effect. Atmosphere. 2020; 11 (10):1121.
Chicago/Turabian StyleStyliani Pateraki; Kyriaki-Maria Fameli; Vasiliki Assimakopoulos; Kyriaki Bairachtari; Alexandros Zagkos; Theodora Stavraka; Aikaterini Bougiatioti; Thomas Maggos; Nikolaos Mihalopoulos. 2020. "Differentiation of the Athens Fine PM Profile during Economic Recession (March of 2008 versus March of 2013): Impact of Changes in Anthropogenic Emissions and the Associated Health Effect." Atmosphere 11, no. 10: 1121.
In the context of climate change and growing energy demand, solar technologies are considered promising solutions to mitigate Greenhouse Gas (GHG) emissions and support sustainable adaptation. In Greece, solar power is the second major renewable energy, constituting an increasingly important component of the future low-carbon energy portfolio. In this work, we propose the use of a high-resolution regional climate model (Weather Research and Forecasting model, WRF) to generate a solar climate atlas for the near-term climatological future under the Representative Concentration Pathway (RCPs) 4.5 and 8.5 scenarios. The model is set up with a 5 × 5 km2 spatial resolution, forced by the ERA-INTERIM for the historic (1980–2004) period and by the EC-EARTH General Circulation Models (GCM) for the future (2020–2044). Results reaffirm the high quality of solar energy potential in Greece and highlight the ability of the WRF model to produce a highly reliable future climate solar atlas. Projected changes between the annual historic and future RCPs scenarios indicate changes of the annual Global Horizontal Irradiance (GHI) in the range of ±5.0%. Seasonal analysis of the GHI values indicates percentage changes in the range of ±12% for both scenarios, with winter exhibiting the highest seasonal increases in the order of 10%, and autumn the largest decreases. Clear-sky fraction fclear projects increases in the range of ±4.0% in eastern and north continental Greece in the future, while most of the Greek marine areas might expect above 220 clear-sky days per year.
Theodoros Katopodis; Iason Markantonis; Nadia Politi; Diamando Vlachogiannis; Athanasios Sfetsos. High-Resolution Solar Climate Atlas for Greece under Climate Change Using the Weather Research and Forecasting (WRF) Model. Atmosphere 2020, 11, 761 .
AMA StyleTheodoros Katopodis, Iason Markantonis, Nadia Politi, Diamando Vlachogiannis, Athanasios Sfetsos. High-Resolution Solar Climate Atlas for Greece under Climate Change Using the Weather Research and Forecasting (WRF) Model. Atmosphere. 2020; 11 (7):761.
Chicago/Turabian StyleTheodoros Katopodis; Iason Markantonis; Nadia Politi; Diamando Vlachogiannis; Athanasios Sfetsos. 2020. "High-Resolution Solar Climate Atlas for Greece under Climate Change Using the Weather Research and Forecasting (WRF) Model." Atmosphere 11, no. 7: 761.
Potential chemical and biological (CB) attacks in indoor spaces pose specific challenges for prevention and preparedness. This paper summarises the conclusions obtained from the work conducted in the framework of the ERNCIP1. A thorough review of the existing and emerging technologies for CB detection, coupled with simulations of CB airborne dispersion in (critical) infrastructures to investigate the implementation of such sensors is presented. The conclusions include: (a) limitations of current sensor technology, (b) the effect of spatial variability of contamination within a building envelop on the effectiveness of such technology (c) the importance of early identification of both CB compounds for post-event mitigation.
Spyros Karakitsios; Ruud Busker; Torbjorn Tjärnhage; Patrick Armand; Marius Dybwad; Merete Folmer Nielsen; Jan Burman; James Burke; Josef Brinek; John Bartzis; Thomas Maggos; Marianthi Theocharidou; Peter Gattinesi; Georgios Giannopoulos; Dimosthenis Sarigiannis. Challenges on detection, identification and monitoring of indoor airborne chemical-biological agents. Safety Science 2020, 129, 104789 .
AMA StyleSpyros Karakitsios, Ruud Busker, Torbjorn Tjärnhage, Patrick Armand, Marius Dybwad, Merete Folmer Nielsen, Jan Burman, James Burke, Josef Brinek, John Bartzis, Thomas Maggos, Marianthi Theocharidou, Peter Gattinesi, Georgios Giannopoulos, Dimosthenis Sarigiannis. Challenges on detection, identification and monitoring of indoor airborne chemical-biological agents. Safety Science. 2020; 129 ():104789.
Chicago/Turabian StyleSpyros Karakitsios; Ruud Busker; Torbjorn Tjärnhage; Patrick Armand; Marius Dybwad; Merete Folmer Nielsen; Jan Burman; James Burke; Josef Brinek; John Bartzis; Thomas Maggos; Marianthi Theocharidou; Peter Gattinesi; Georgios Giannopoulos; Dimosthenis Sarigiannis. 2020. "Challenges on detection, identification and monitoring of indoor airborne chemical-biological agents." Safety Science 129, no. : 104789.
Climate change is set to result in an increase of extreme weather events such as extreme precipitation, heatwaves, floods, droughts etc. The study of the possibility of the increase of such events is of high importance, but equally important is to study the combination of these events, meaning the study of Compound Events. In our case we focus on the combination of extreme precipitation with extreme wind speed for the region of Greece.
Greece located in the region of the Eastern Mediterranean Sea is prone to Climate Change as the whole region of the Mediterranean Basin. So, it is crucial to understand how the country is affected by Compound Events of extreme precipitation and extreme wind speed. As a first step, we study the historic period 1980-2009 using the model output data. The data for the historic period analysis have been produced from Weather Research Forecast (WRF) 5km downscaled model output with temporal resolution of 6 hours, using as input ERAINTERIM data. The downscaling study that has produced the atmospheric model dataset is described in Politi, et al. (2018). The methodology for studying Compound Events in the area is presented together with the preliminary results.
Athanasios Sfetsos; Jason Markantonis; Stylianos Karozis; Nadia Politi; Diamando Vlachogiannis. Preliminary study of Compound Events in Greece using high-resolution downscaled climate data. 2020, 1 .
AMA StyleAthanasios Sfetsos, Jason Markantonis, Stylianos Karozis, Nadia Politi, Diamando Vlachogiannis. Preliminary study of Compound Events in Greece using high-resolution downscaled climate data. . 2020; ():1.
Chicago/Turabian StyleAthanasios Sfetsos; Jason Markantonis; Stylianos Karozis; Nadia Politi; Diamando Vlachogiannis. 2020. "Preliminary study of Compound Events in Greece using high-resolution downscaled climate data." , no. : 1.
In the present study, the ability of the Advanced Weather Research and Forecasting numerical model (WRF-ARW) to perform climate regionalization studies in the topographically complex region of Greece, was examined in order to explore the possibility of a more reliable selection of physical schemes for the simulation of historical and future high resolution (5 km) climate model experiments to investigate the impact of climate change. This work is directly linked to a previous study investigating the performance of seven different model setups for one year, from which the need was derived for further examination of four different simulations to investigate the model sensitivity on the representation of surface variables statistics during a 5-year period. The results have been compared with observational data for maximum and minimum air temperature and daily precipitation through statistical analysis. Clear similarities were found in precipitation patterns among simulations and observations, yielding smoothly its inter-annual variability, especially during the wettest months and summer periods, with the lowest positive percentage BIAS calculated at about 19% for the selected combination of physics parameterizations (PP3). Regarding the maximum and minimum temperature, statistical analysis showed a high correlation above 0.9, and negative bias around 1−1.5 °C, and positive bias near 2 °C, respectively.
Nadia Politi; Athanasios Sfetsos; Diamando Vlachogiannis; Panagiotis T. Nastos; Stylianos Karozis. A Sensitivity Study of High-Resolution Climate Simulations for Greece. Climate 2020, 8, 44 .
AMA StyleNadia Politi, Athanasios Sfetsos, Diamando Vlachogiannis, Panagiotis T. Nastos, Stylianos Karozis. A Sensitivity Study of High-Resolution Climate Simulations for Greece. Climate. 2020; 8 (3):44.
Chicago/Turabian StyleNadia Politi; Athanasios Sfetsos; Diamando Vlachogiannis; Panagiotis T. Nastos; Stylianos Karozis. 2020. "A Sensitivity Study of High-Resolution Climate Simulations for Greece." Climate 8, no. 3: 44.
Contaminants of biological origin, such as fungi and bacteria, are ubiquitous inside the residences and especially in bedroom microenvironments. Epidemiological studies have shown that fungal exposure is associated with respiratory and allergic symptoms. Infants and young children comprise a susceptible population to study, since they spend most of their day inside their rooms. A study was undertaken to investigate environmental factors (temperature and relative humidity), indoor pollutants (PM2.5, CO2), building characteristics and occupant activities in relation to the spectrum and levels of settled fungi in 25 Greek young's children bedrooms, and to evaluate the fungal qualitative and quantitative composition of houses with and without asthmatic/allergic children. In this context, on-site house inspections to study the Indoor Air Quality (IAQ) in bedrooms of young children below three years of age were conducted in Athens, Greece. Sampling campaigns were conducted over one-week period using Electrostatic Dust Collectors (EDCs) to quantify fungal and bacterial exposure in settled dust and real-time monitoring techniques for environmental parameters (T, RH, CO2, PM2.5). The present investigation revealed that the predominant dustborne genus was Cladosporium followed by Alternaria and Aspergillus, and that living in a suburban area, the presence of an attached garage and the presence of a carpet in the bedroom were significant predictors of fungal concentrations. Furthermore, although the difference was not statistically significant, higher fungal concentrations were recorded in the houses with asthmatic or atopic children.
A. Stamatelopoulou; I. Pyrri; D.N. Asimakopoulos; Thomas Maggos. Indoor air quality and dustborne biocontaminants in bedrooms of toddlers in Athens, Greece. Building and Environment 2020, 173, 106756 .
AMA StyleA. Stamatelopoulou, I. Pyrri, D.N. Asimakopoulos, Thomas Maggos. Indoor air quality and dustborne biocontaminants in bedrooms of toddlers in Athens, Greece. Building and Environment. 2020; 173 ():106756.
Chicago/Turabian StyleA. Stamatelopoulou; I. Pyrri; D.N. Asimakopoulos; Thomas Maggos. 2020. "Indoor air quality and dustborne biocontaminants in bedrooms of toddlers in Athens, Greece." Building and Environment 173, no. : 106756.
Climate change already has far-reaching impacts on the oil industry, putting the operation, reliability, and growth of the sector at risk. Oil infrastructure has multi-decadal lifetime projections; thus, climate change and extreme weather events such as extreme temperatures, hurricanes, high winds, lightning strikes, storm surges, flooding, etc., pose an extra challenge to the oil supply chain, from upstream to downstream. In this paper, we review the climate change risk assessment frameworks, the impacts of climate change on oil infrastructure, and we identify gaps in the current knowledge, also suggesting future search directions on adapting the oil sector to climate change. The work overviews linkages between climate and oil industry design, operational, and service thresholds in a comprehensive hazard threshold matrix. Existing risk assessment methodologies that account for existing regulatory frameworks and interdependencies with other infrastructures are studied, leading to mitigation, adaptation, and sector resilience recommendations.
Theodoros Katopodis; Athanasios Sfetsos. A Review of Climate Change Impacts to Oil Sector Critical Services and Suggested Recommendations for Industry Uptake. Infrastructures 2019, 4, 74 .
AMA StyleTheodoros Katopodis, Athanasios Sfetsos. A Review of Climate Change Impacts to Oil Sector Critical Services and Suggested Recommendations for Industry Uptake. Infrastructures. 2019; 4 (4):74.
Chicago/Turabian StyleTheodoros Katopodis; Athanasios Sfetsos. 2019. "A Review of Climate Change Impacts to Oil Sector Critical Services and Suggested Recommendations for Industry Uptake." Infrastructures 4, no. 4: 74.
Indoor Air quality (IAQ) in private or public environments is progressively recognized as a critical issue for human health. For that purpose the poor IAQ needs to be mitigated and immediate drastic measures must be taken. In environmental science and especially in advanced oxidation processes and technologies (AOPs-AOTs), photocatalysis has gained considerable interest among scientists as a tool for IAQ improvement. In the current study an innovative paint material was developed which exhibits intense photocatalytic activity under direct and diffused visible light for the degradation of air pollutants, suitable for indoor use. A laboratory and a real scale study were performed using the above innovative photo-paint. The lab test was performed in a special design photo-reactor while the real scale in a military’s medical building. Nitrogen Oxide (NO) and Toluene concentration was monitored between “reference” rooms (without photo paint) and “green” rooms (with photo-paint) in order to estimate the photocatalytic efficiency of the photo-paint to degrade the above pollutants. Results of the study showed a decrease up to 60% and 16% for NO and toluene respectively under lab scale tests while an improvement of air quality up to 19% and 5% under real world conditions was achieved.
Thomas Maggos; Vassiliοs Binas; Vasileios Siaperas; Antypas Terzopoulos; Panagiotis Panagopoulos; George Kiriakidis. A Promising Technological Approach to Improve Indoor Air Quality. Applied Sciences 2019, 9, 4837 .
AMA StyleThomas Maggos, Vassiliοs Binas, Vasileios Siaperas, Antypas Terzopoulos, Panagiotis Panagopoulos, George Kiriakidis. A Promising Technological Approach to Improve Indoor Air Quality. Applied Sciences. 2019; 9 (22):4837.
Chicago/Turabian StyleThomas Maggos; Vassiliοs Binas; Vasileios Siaperas; Antypas Terzopoulos; Panagiotis Panagopoulos; George Kiriakidis. 2019. "A Promising Technological Approach to Improve Indoor Air Quality." Applied Sciences 9, no. 22: 4837.
Wind technology is projected to play a key role in mitigating climate change effects and contributing to the reduction of CO2 emissions, but its sustainability critically depends on current and future climate conditions. In this study, the climate change impacts on wind resources and wind energy potential in Greece are assessed, yielding a wealth of information that could be used by stakeholders. A detailed evaluation of future wind characteristics over Greece is carried out using EURO-CORDEX RCA4 model data with a horizontal resolution of ∼12 km, taking into consideration future RCP scenarios for the short term decadal climatology of 2040, which is the expected end-life of installed wind turbines. The RCA4 model demonstrated accurate performance when compared to actual observational data from the HNMS network, thus allowing higher confidence in assessments of future periods. Future projections revealed changes in the mean wind speed of the order of ±5% that did not vary significantly for the different RCP scenarios, although on a monthly basis that variability could reach ±20%. Decadal changes in the mean wind potential were of the order of ±15% for the two RCPs (2.6 and 8.5). Wind gusts exceeding 52 m/s, linked to the wind turbine structural integrity and robust performance, appeared more frequently in RCP 8.5 by about 2–4 times per decade, affecting mostly the South Ionian Sea. The findings also indicate a tendency for calming of the “Etesians” winds over the Aegean Sea in future summers.
Theodoros Katopodis; Diamando Vlachogiannis; Nadia Politi; Nikolaos Gounaris; Stelios Karozis; Athanasios Sfetsos. Assessment of climate change impacts on wind resource characteristics and wind energy potential in Greece. Journal of Renewable and Sustainable Energy 2019, 11, 066502 .
AMA StyleTheodoros Katopodis, Diamando Vlachogiannis, Nadia Politi, Nikolaos Gounaris, Stelios Karozis, Athanasios Sfetsos. Assessment of climate change impacts on wind resource characteristics and wind energy potential in Greece. Journal of Renewable and Sustainable Energy. 2019; 11 (6):066502.
Chicago/Turabian StyleTheodoros Katopodis; Diamando Vlachogiannis; Nadia Politi; Nikolaos Gounaris; Stelios Karozis; Athanasios Sfetsos. 2019. "Assessment of climate change impacts on wind resource characteristics and wind energy potential in Greece." Journal of Renewable and Sustainable Energy 11, no. 6: 066502.
The exposome includes urban greenspace, which may affect health via a complex set of pathways, including reducing exposure to particulate matter (PM) and noise. We assessed these pathways using indoor exposure monitoring data from the HEALS study in four European urban areas (Edinburgh, UK; Utrecht, Netherlands; Athens and Thessaloniki, Greece). We quantified three metrics of residential greenspace at 50 m and 100 m buffers: Normalised Difference Vegetation Index (NDVI), annual tree cover density, and surrounding green land use. NDVI values were generated for both summer and the season during which the monitoring took place. Indoor PM2.5 and noise levels were measured by Dylos and Netatmo sensors, respectively, and subjective noise annoyance was collected by questionnaire on an 11-point scale. We used random-effects generalised least squares regression models to assess associations between greenspace and indoor PM2.5 and noise, and an ordinal logistic regression to model the relationship between greenspace and road noise annoyance. We identified a significant inverse relationship between summer NDVI and indoor PM2.5 (−1.27 μg/m3 per 0.1 unit increase [95% CI -2.38 to −0.15]) using a 100 m residential buffer. Reduced (i.e., <1.0) odds ratios (OR) of road noise annoyance were associated with increasing summer (OR = 0.55 [0.31 to 0.98]) and season-specific (OR = 0.55 [0.32 to 0.94]) NDVI levels, and tree cover density (OR = 0.54 [0.31 to 0.93] per 10 percentage point increase), also at a 100 m buffer. In contrast to these findings, we did not identify any significant associations between greenspace and indoor noise in fully adjusted models. We identified reduced indoor levels of PM2.5 and noise annoyance, but not overall noise, with increasing outdoor levels of certain greenspace indicators. To corroborate our findings, future research should examine the effect of enhanced temporal resolution of greenspace metrics during different seasons, characterise the configuration and composition of green areas, and explore mechanisms through mediation modelling.
William Mueller; Susanne Steinle; Juha Pärkkä; Eija Parmes; Hilkka Liedes; Eelco Kuijpers; Anjoeka Pronk; Dimosthenis Sarigiannis; Spyros Karakitsios; Dimitriοs Chapizanis; Thomas Maggos; Asimina Stamatelopoulou; Paul Wilkinson; James Milner; Sotiris Vardoulakis; Miranda Loh. Urban greenspace and the indoor environment: Pathways to health via indoor particulate matter, noise, and road noise annoyance. Environmental Research 2019, 180, 108850 .
AMA StyleWilliam Mueller, Susanne Steinle, Juha Pärkkä, Eija Parmes, Hilkka Liedes, Eelco Kuijpers, Anjoeka Pronk, Dimosthenis Sarigiannis, Spyros Karakitsios, Dimitriοs Chapizanis, Thomas Maggos, Asimina Stamatelopoulou, Paul Wilkinson, James Milner, Sotiris Vardoulakis, Miranda Loh. Urban greenspace and the indoor environment: Pathways to health via indoor particulate matter, noise, and road noise annoyance. Environmental Research. 2019; 180 ():108850.
Chicago/Turabian StyleWilliam Mueller; Susanne Steinle; Juha Pärkkä; Eija Parmes; Hilkka Liedes; Eelco Kuijpers; Anjoeka Pronk; Dimosthenis Sarigiannis; Spyros Karakitsios; Dimitriοs Chapizanis; Thomas Maggos; Asimina Stamatelopoulou; Paul Wilkinson; James Milner; Sotiris Vardoulakis; Miranda Loh. 2019. "Urban greenspace and the indoor environment: Pathways to health via indoor particulate matter, noise, and road noise annoyance." Environmental Research 180, no. : 108850.
Fine particulate matter (PM) has significant impacts on public health. Among its various chemical components, Polycyclic Aromatic Hydrocarbons (PAHs) are of particular importance since they contribute to a large extent or even enhance its toxic potency. Despite the verified importance of the fine PM pollution for the Greater Athens Area (GAA), information on its composition with respect to the hydrocarbons is extremely scarce. This study aims to uncover the occurrence of the PM2.5 and PM1-bound PAHs across the GAA investigating the impact of the sources and meteorology on the configuration of their profile and potential health risk. The fieldwork took place at three different locations during two different mesoscale wind regimes. Using the Diagnostic PAHs’ Ratio method, the sources were identified while for the quantification of the emissions from the traffic and central heating sectors, the FEI-GREGAA emission inventory was taken into consideration. The potential health risk was estimated calculating the toxic/mutagenic equivalency factors. The peaks for both the PM mass and the PAHs were attributed to the intensity of the emissions. On the other hand, the carcinogenic/mutagenic risk was mainly influenced by the varying characteristics of traffic and especially for the background atmosphere, from the arriving air masses from longer scale distances.
Styliani Pateraki; Kyriaki-Maria Fameli; Vasiliki Assimakopoulos; Aikaterini Bougiatioti; Thomas Maggos; Nikolaos Mihalopoulos. Levels, Sources and Health Risk of PM2.5 and PM1-Bound PAHs across the Greater Athens Area: The Role of the Type of Environment and the Meteorology. Atmosphere 2019, 10, 622 .
AMA StyleStyliani Pateraki, Kyriaki-Maria Fameli, Vasiliki Assimakopoulos, Aikaterini Bougiatioti, Thomas Maggos, Nikolaos Mihalopoulos. Levels, Sources and Health Risk of PM2.5 and PM1-Bound PAHs across the Greater Athens Area: The Role of the Type of Environment and the Meteorology. Atmosphere. 2019; 10 (10):622.
Chicago/Turabian StyleStyliani Pateraki; Kyriaki-Maria Fameli; Vasiliki Assimakopoulos; Aikaterini Bougiatioti; Thomas Maggos; Nikolaos Mihalopoulos. 2019. "Levels, Sources and Health Risk of PM2.5 and PM1-Bound PAHs across the Greater Athens Area: The Role of the Type of Environment and the Meteorology." Atmosphere 10, no. 10: 622.
With the principal aim to assess the typical Mediterranean profile of the PM2.5 and PM1 pollution, three intensive monitoring campaigns took place simultaneously within different types of environment across an urban location of the basin. Focusing on the PM components with numerous anthropogenic sources and increased potential health risk, the samples were chemically analyzed for 20 p.m.-bound Polycyclic Aromatic Hydrocarbons (PAHs). Carbonaceous and ionic constituents were quantified as well. In order to uncover the spatiotemporal variation of the PM profile the key sources were identified, the seasonal effects and the role of the prevailing mesoscale atmospheric circulation were evaluated and most importantly the potential health risk was estimated. In general, the pollution status of the basin was the result of a complex interaction between the local and external input with Particulate Organic Matter (POM) and Secondary Inorganic Aerosols (SIA) being the main aerosols’ components. PM1 was a better indicator of the anthropogenic emissions while according to the results of factor analysis the co-existence of various combustion sources was determinant. Chemically, the maxima of the ΣPAHs, the differentiation of their structure in accordance with their molecular weight and the distribution of the individual compounds confirmed the significance of the emission sources. Similarly, the estimated carcinogenicity/mutagenicity was emission-dependent with the maximum contribution coming from B[a]P, IndP, B[ghi]Per, B[e]P and B[b]F. Seasonally, the highest potential health risk of the PAHs’ mixture was recorded during the cold season while meteorologically, it was mostly associated with the south flow.
St. Pateraki; D.N. Asimakopoulos; Thomas Maggos; V.D. Assimakopoulos; Aikaterini Bougiatioti; K. Bairachtari; Ch. Vasilakos; N. Mihalopoulos. Chemical characterization, sources and potential health risk of PM2.5 and PM1 pollution across the Greater Athens Area. Chemosphere 2019, 241, 125026 .
AMA StyleSt. Pateraki, D.N. Asimakopoulos, Thomas Maggos, V.D. Assimakopoulos, Aikaterini Bougiatioti, K. Bairachtari, Ch. Vasilakos, N. Mihalopoulos. Chemical characterization, sources and potential health risk of PM2.5 and PM1 pollution across the Greater Athens Area. Chemosphere. 2019; 241 ():125026.
Chicago/Turabian StyleSt. Pateraki; D.N. Asimakopoulos; Thomas Maggos; V.D. Assimakopoulos; Aikaterini Bougiatioti; K. Bairachtari; Ch. Vasilakos; N. Mihalopoulos. 2019. "Chemical characterization, sources and potential health risk of PM2.5 and PM1 pollution across the Greater Athens Area." Chemosphere 241, no. : 125026.