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Georgios Papastergios

Georgios Papastergios
Municipality of Thessaloniki · Dpt. of Operational Planning and Development Programmes Monitoring (Urban Resilience)

Ph.D., M.Sc., B.Sc.
Managing funded projects at the Municipality of Thessaloniki. Interested in resilience, enviroment, policy making.

About

69
Publications
18,097
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603
Citations
Citations since 2016
15 Research Items
305 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Introduction
Dr Georgios K. Papastergios Environmental Geochemist - Geologist Ph.D., M.Sc., B.Sc. Post-doctorate researcher Aristotle University of Thessaloniki Faculty of Sciences, School of Geology Department of Mineralogy-Petrology-Economic Geology gpapaste@geo.auth.gr; gpapastergios@gmail.com Project manager/officer at the Dep. of Operational Planning & Monitoring of Structural Funds (Municipality of Thessaloniki). Responsible for the administrative and financial monitoring of EC and national projects.
Additional affiliations
May 2012 - February 2014
National Centre for Public Administration and Local Government
Position
  • Teaching
Description
  • Teaching subjects had to do with the application of computer software (i.e., MS Word, Excel, Power Point etc.) in office activities
January 2009 - present
Aristotle University of Thessaloniki
Position
  • PostDoc Position
Description
  • Environmental Geochemistry, GIS, Mineralogy, Hydrogeochemistry, Biogeochemistry, Particulate Matter (PM)
October 2004 - September 2005
Alexander Technological Educational Institute of Thessaloniki
Position
  • Teaching
Description
  • Teaching laboratory practices at the laboratory of sedimentology.
Education
October 2003 - July 2008
Aristotle University of Thessaloniki
Field of study
  • Environmental Geochemistry, GIS
October 2001 - July 2003
Aristotle University of Thessaloniki
Field of study
  • Environmental Geochemistry
September 1993 - July 1999

Publications

Publications (69)
Article
BACKGROUND AND AIM: In the LIFE ASTI project a forecasting system for estimating the urban heat island intensity (UHI) and defining high resolution heat health watch warning systems was developed in 3 Mediterranean cities, namely Thessaloniki, Rome and Heraklion. METHODS: Mortality data and temperature data for each city were collected for the peri...
Article
Full-text available
Policy-making in local public administrations is still largely based on intuition rather than being backed up by data and evidence. The goal of this work is to introduce the methodology and software tools for contributing toward transforming the existing intuition-based paradigm of policy-making into an evidence-driven approach enabled by heterogen...
Poster
Full-text available
Urban Heat Island (UHI) affects considerably human health, local economies and the environment, particularly, with regard to human health, its effect is important in over-populated regions and regions where vulnerable and high risk groups live. The LIFE ASTI project which is part-financed by LIFE programme 2014-2020, aims at developing a set of mod...
Article
Full-text available
Air pollution has been one of the first environmental problems to be addressed by the EU and for this reason clean air is considered essential to good health. Information availability and understanding of the air quality issue is essential part of tackling it with efficiency. Having the latter in mind, the Municipality of Thessaloniki has considere...
Conference Paper
Full-text available
The aim of the present work is to present the current developments regarding indoor and outdoor air monitoring actions that the Municipality of Thessaloniki has taken in order to increase its resilience towards values described in its strategy such as Environmental Management, Health and Wellbeing and Technology Adaptation
Poster
Full-text available
The aim of the present work is to present the current developments regarding indoor and outdoor air monitoring actions that the Municipality of Thessaloniki has taken in order to increase its resilience towards values described in its strategy such as Environmental Management, Health and Wellbeing and Technology Adaptation.
Article
Full-text available
Apple leaves from central Greece, were investigated for their content in 25 elements. Comparison with literature data has shown that Fe, Co, Sb, Na, Sc, Ni, Cr, and Cd have larger values from 3 up to 28 times. Additionally, when the obtained results are compared to analyses regarding soils and apples from the same study area, indicate that, for alm...
Article
Full-text available
Zeolitic rock samples from South Xerovouni contain on average, 57 wt.% HEU type zeolite, 6 wt.% clay minerals, 3 wt.% mica (total of 66 wt.% microporous minerals), 19 wt.% feldspars, 10 wt.% cristobalite and 5 wt.% quartz (total of 34 wt.% non-microporous minerals). Chemically the zeolitic rock consists mainly of 69.9 wt.% SiO2, 13.2 wt.% Al2O3, 1....
Article
Full-text available
The treatment of wastewater (initial pH 7.7) from Sindos industrial area of Thessaloniki (Greece) with different proportions (0.1, 0.2, 0.4, 0.8, 1.6, 3.2, and 6.4 g) of Hellenic natural zeolite (HENAZE), resulted in overflowed clear water of pH 7.4–7.3, free of odours and improved by 69–76% for the chemical oxygen demand, 54–70% for nitrate ((Form...
Article
Full-text available
The uptake of Cs, Pb, Cu, Zn, Cd, and Mn ions, from aqueous solutions by a HEU-type (clinoptilolite- heulandite) zeolitic tuff was studied in batch and column experiments. The effect of solutions concentration, time contact and flow rate on the uptake was also studied. The uptake sequence was found to be Cs>Pb>Cu>Zn>Cd>Mn. The uptake values were af...
Article
Full-text available
The environmental geochemistry of lignite, intermediate sterile, fly ash and bottom ash samples from Ptolemais area, has been investigated. The chemical analyses of major elements, combined with SEM-EDS, showed that Si, Ca and Fe, are the most abundant elements and associated with various micro-particles. On average, the most abundant trace element...
Article
Full-text available
Forty two soil, apple and leaf samples from Agia area, central Greece, were collected and analyzed for their content in 7 major elements (Ca, Fe, K, Mg, Na, P and S). The average concentration of the determined elements follows the order: concentration in soils > concentration in leaves > concentration in apples. Elements, such as Fe that is found...
Article
Full-text available
The environmental geochemistry of lignite, intermediate sterile, fly ash and bottom ash samples from Ptolemais area, has been investigated. The chemical analyses of major elements, combined with SEM-EDS, showed that Si, Ca and Fe, are the most abundant elements and associated with various micro-particles. On average, the most abundant trace element...
Article
Full-text available
The Kozani–Ptolemais–Amyntaio basin constitutes the principal coal field of Greece. Approximately 50% of the total power of Greece is generated by five power stations operating in the area. Pulverized lignite, a bottom ash, and a fly ash sample from the power plant of Amyntaio were subjected to a leaching procedure. The relative mass leached (RML)...
Article
Full-text available
Treatment of dyeing industry wastewater of pH 7.5 with very high quality zeolitic tuff and coagulants, resulted in clear water of pH 7.2, free of odours and improved quality characteristics (colour, suspended particles, COD: Chemical Oxygen Demand, P2O5, NO3 -, Cr) by 74 to 98%. The very high quality zeolitic tuff is 3 to 0% more effective than the...
Article
Full-text available
Treatment of municipal wastewater of pH 8.7 with very high quality zeolitic tuff and coagulants, resulted to clear water of pH 7.1 and improved quality characteristics by 79% to 950%. The zeolitic tuff is 2% to 317% more effective than the coagulants, concerning COD, Mn, Ni, Fe, Cr, NO 3-and dissolved oxygen. The municipal-zeo-sludge produced eithe...
Article
Full-text available
The Kozani-Ptolemais-Amyntaio basin constitutes the principal coal field of Greece. Approximately 50 % of the total power production of Greece is generated by five power stations operating in the area. Lignite samples, together with the corresponding fly ash and bottom ash were collected, over a period of 3 months, from the power plant of Amyntaio...
Article
Full-text available
Forty-two soil and apple samples from central Greece were collected and analyzed with regards to the content in major (Ca, Fe, K, Mg, Na, P, and S) and trace elements (As, B, Ba, Cd, Co, Cr, Cu, Hg, Mn, Mo, Ni, Pb, Sb, Sc, Se, Sr, Ti, and Zn). Soil samples were analyzed by inductively coupled plasma atomic emission spectrometry, while for the apple...
Article
Full-text available
Sixty-four samples from the groundwater resources of Trikala municipality, central Greece, were collected during two periods (2006 and 2007) and analyzed for physico-chemical parameters (temperature, pH, specific electrical conductivity, and total dissolved solids), major ions (Ca(2+), Cl(-), HCO (3) (-) , K(+), Mg(2+), Na(+), NO (3) (-) , SO (4) (...
Article
Full-text available
Over the last decades, removal of potentially toxic and hazardous materials has received a great deal of attention in the field of environmental pollution. Problems associated with the disposal of the wastes of different kinds of industries led to studies of the sorption–uptake properties of clay minerals and zeolites. In the present research, the...
Conference Paper
Full-text available
The natural zeolite supplied by the GEO-VET N. Alexandridis & Co O.E., contains 87 wt.% HEU-type zeolite (clinoptilolite-heulandite), 2 wt.% mica, 2 wt.% smectite, 2 wt.% alkali-feldspar, 3 wt.% plagioclase, 2 wt.% quartz and 2 wt.% cristobalite. The total microporous minerals content (HEU-type zeolite + mica + smectite) is 91 wt.%. The commixture...
Article
Full-text available
In order to investigate the factors influencing the distribution of 32 potentially toxic elements in the Ptolemais–Kozani basin, northwestern Greece, 38 soil samples were collected and analyzed. Concentrations of Al, Ca, Fe, K, Mg, Mn, Na, P, Ti, Ba, Co, Cr, Cu, La, Li, Ni, Pb, Sc, Sr, V, Y, and Zn were determined by ICP-AES and concentrations of A...
Article
Full-text available
The possibility of using the species Silene compacta Fischer (Caryophyllaceae) as a plant indicator for Zn, Fe and Cu is discussed in this paper. Rock and plant samples were collected from an area near Essimi, northeastern Greece, which is known for its Cu–Pb–Zn mineralization and analyzed for their content in 14 elements (Fe, Mn, Ag, As, Cd, Co, C...
Conference Paper
Full-text available
The treatment of wastewater from Thessaloniki industrial area with the Hellenic Natural Zeolite (HENAZE), resulted to clear, odour free water, improved by 5% in pH, 93% in colour, 74% in chemical oxygen demand (COD), >97% in P2O5, 57% in NO3 and 83% in Cr contents. The sorption and fixation of the different species from the wastewater by the micro-...
Conference Paper
Full-text available
The treatment of wastewater from Sindos industrial area of Thessaloniki, Greece (initial pH 7.8) with the Hellenic Natural Zeolite (HENAZE), resulted to clear water of pH 7.3, free of odours and improved by 93% in the colour, 69% in the chemical oxygen demand (COD), >97% in the P2O5 removal, 54% in the NO3 removal and 77% in the Cr removal. The sor...
Conference Paper
Full-text available
The treatment of wastewater from Sindos industrial area of Thessaloniki, Greece (initial pH 7.8) with the Hellenic Natural Zeolite (HENAZE), resulted to clear water of pH 7.3, free of odours and improved by 93% in the colour, 69% in the chemical oxygen demand (COD), >97% in the P2O5 removal, 54% in the NO3 removal and 77% in the Cr removal. The sor...
Article
Full-text available
Zeolitic tuffs from the Xerovouni location of the Avdella area (Evros Prefecture, Greece) contain on average 54 wt.% HEU-type zeolite, 6 wt.% smectite, 4 wt.% mica (64 wt.% microporous minerals), 8 wt.% alkali feldspar, 9 wt.% plagioclase, 11 wt.% cristobalite and 8 wt.% quartz (36 wt.% non-microporous minerals). The chemical formula of the HEU-typ...
Article
Full-text available
The procedure proposed in this study is based on the extraction of elements in soils by analytical grade HNO3, the distribution of the elemental data displayed on probability graphs (Q–Q plots) and the visualization of the results spatially by GIS software. The applicability of the procedure is demonstrated in an urban area and its surroundings (Ka...
Conference Paper
Full-text available
Twelve water samples from the area of Asvestohori – Hortiatis, prefecture of Thessaloniki, Greece, were analyzed for their concentrations in basic chemical parameters that determine water quality according to national and international directives. The first sampling scheme was performed during July 2007, while the second during October 2009. Severa...
Conference Paper
Full-text available
The zeolitic tuffs from Gourounorema location (Avdella-Metaxades, Evros) contain on average 52 wt.% HEU-type zeolite, 7 wt.% clay minerals, 4 wt.% mica, 15 wt.% feldspars, 14 wt.% cristobalite and 8 wt.% quartz. The chemical composition of the zeolitic tuffs is on average: 72.4 wt.% SiO2, 11.7 wt.% Al2O3, 1.1 wt.% Fe2O3, 1.1 wt.% MgO, 2.8 wt.% CaO,...
Article
Full-text available
The aim of the present study was to estimate the geochemical background and anomaly threshold values of the surface soils in Kavala, northern Greece. In order to reach this goal, a simple and practical procedure was applied. This procedure included the extraction of 42 major and trace elements by analytical grade HNO3 from 65 surface soil samples,...
Article
Full-text available
The possibility of using the species Silene compacta Fischer (Caryophyllaceae) as a plant indicator for Zn, Fe and Cu is discussed in this paper. Rock and plant samples were collected from an area near Essimi, north-eastern Greece, which is known for its Cu–Pb–Zn mineralization and analyzed for their content in 14 elements (Fe, Mn, Ag, As, Cd, Co,...
Conference Paper
Full-text available
A total of 65 surface soils samples from the area surrounding the city of Kavala, northern Greece, was collected and analyzed for their contents in 32 trace elements (Ag, As, B, Ba, Cd, Ce, Co, Cr, Cs, Cu, Ga, Ge, Hg, La, Li, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sn, Sr, Th, Ti, U, V, W, Y, Zn and Zr), by ICP-MS. The elements were extracted from the < 200 μm...
Article
Full-text available
Nine sediment samples from Filippos B port, Kavala, northern Greece were collected, sieved under 200 μm and analyzed for their content in 14 potentially toxic trace elements (Ag, As, Ba, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, U, V and Zn). The results indicate that the majority of the elements are found with concentrations similar to other national and in...
Article
Full-text available
The continuous extra-framework cations release from Greek analcime-rich rock sample was studied, upon ammonium acetate exchange experiments (agitation time 0.25-720 hours), using atomic absorption spectrometry. The analcime-rich material was examined by X-ray powder diffraction, scan-ning electron microscopy equipped with energy dispersive micro-an...
Article
Full-text available
Nine sediment samples from Filippos B port, Kavala, northern Greece, were collected and analyzed for their content of 42 elements. The results indicate that both major and trace elements can be divided into two groups according to their anthropogenic source. The first group includes Al, Cl, Fe, K, Mg, Na, P, S, Ag, As, Cd, Ce, Hg, La, Mo, Pb, Sb, S...
Article
Full-text available
A total of 65 surface (0–20cm) soil samples were collected in an effort to estimate the arsenic background values in Kavala area, Northern Greece. Arsenic was extracted by HNO3 from the <200 µm grain size fraction, and its concentrations were determined in all samples by inductively coupled plasma–mass spectrometry. Arsenic concentrations were log-...
Article
Full-text available
A total of 65 surface soils and 8 rock samples from the area surrounding the city of Kavala, Northern Greece, was collected and analyzed for their contents in 10 major and 32 trace elements. The extraction of the elements from the < 200μm soil fraction was based on the digestion of 0.1g of each sample with 2ml HNO 3 . The analytical methods used we...
Article
Full-text available
Treatment of urban wastewaters (pHinitial 8.2), with 6 g of Hellenic Natural Zeolite (HENAZE) of an grain-size < 1.5 mm, gave overflowed clear water of pH 7.5, free of odors and improved quality parameters by 87% for the suspended particles, 88% for the color, 91% for the P2O5 content, 93% for the chemical oxygen demand (COD) and 97% for the NH4 co...
Article
Full-text available
Zeolitic rock samples from South Xerovouni contain on average, 57 wt.% HEU-type zeolite, 6 wt.% clay minerals, 3 wt.% mica (total of 66 wt.% microporous minerals), 19 wt.% feldspars, 10 wt.% cristobalite and 5 wt.% quartz (total of 34 wt.% non-microporous minerals). Chemically the zeolitic rock consists mainly of 69.9 wt.% SiO2, 13.2 wt.% Al2O3, 1....
Article
Full-text available
A total of 65 surface soils and 8 rock samples from the area surrounding the city of Kavala, Northern Greece, was collected and analyzed for their contents in 10 major and 32 trace elements. The extraction of the elements from the < 200μm soil fraction was based on the digestion of 0.1g of each sample with 2ml HNO3. The analytical methods used were...
Conference Paper
Full-text available
The Hellenic Natural Zeolite (HENAZE) contains 89 wt.% HEU-type zeolite (Ca1.5K1.4Mg0.6Na0.5Al6.2Si29.8O72.20H2O), 3 wt.% mica, 2 wt.% clays (94 wt.% microporous minerals), 4 wt.% feldspars and 2 wt.% quartz. The HENAZE shows a remarkable ammonia ion exchange capacity of 226 meq/100g, as well as an ability to neutralize the pH of basic and acidic w...
Article
Full-text available
Nine sampling sites in the eastern Kavala coast, Northern Greece, were selected to collect sediments and analyze their content in arsenic. In past and recent years, arsenic has raised a lot of attention since it is considered to be a potentially toxic element. Arsenic concentrations ranged from 2.7 to 44.8 mg kg-1, and its average was 15.3 mg kg-1....
Article
Full-text available
Thirty eight surface soil samples from the Ptolemais-Kozani basin, northwestern Greece were collected and analysed for their content in twenty three elements (Al, Ca, Fe, K, Mg, Mn, Na, Ti, As, Ba, Cd, Co, Cr, Cu, Li, Mo, Ni, Pb, Sb, Sr, V, Y and Zn) by ICP-AES and ICP-MS. The concentrations of these elements were compared with three international...
Article
Full-text available
The spatial distribution of five potentially toxic elements (Fe, Mg, Co, Cr and Ni) was studied in topsoils of Agia district, central Greece and their concentrations were measured and correlated to the underlying geological formations of the study area. The investigation was focused on mapping the areas with elevated concentrations and evaluating t...