Panagiotis Papazotos

Panagiotis Papazotos
National Technical University of Athens | NTUA · Department of Mining Engineering

PhD

About

36
Publications
12,626
Reads
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256
Citations
Introduction
Panagiotis Papazotos is a postdoc researcher at the School of Mining and Metallurgical Engineering, National Technical University of Athens, Greece. He obtained his Ph.D. in 2020, and his thesis focused on the geochemical footprint of ultramafic rocks in groundwater quality. He uses various mineralogical and geochemical analytical techniques. His main research interests are related to environmental geochemistry, hydrochemical modeling, mineralogy, water resources management, and soil science.
Additional affiliations
September 2015 - March 2020
National Technical University of Athens
Position
  • Researcher
June 2015 - present
National Technical University of Athens
Position
  • Fellow
Description
  • Teaching fellow for the undergraduate courses of Mineralogy (1st semester), Petrology (2nd semester),Economic geology (4th semester) and Environmental geochemistry (8th semester).
Education
June 2015 - June 2020
September 2014 - November 2018
National and Kapodistrian University of Athens
Field of study
  • Mineral resources management and environmental management
September 2013 - January 2015
National Technical University of Athens
Field of study
  • Hydrology and water recources management

Publications

Publications (36)
Article
Full-text available
In the present study, we approach the geochemical processes affecting the hydrochemistry and resulting in elevated concentrations of hexavalent chromium (Cr⁶⁺) in groundwater of the Psachna basin, central Euboea, Greece. Sixty-five groundwater samples and 16 topsoil (5–20 cm) samples were studied in order to examine groundwater and soil quality in...
Article
This study aimed to investigate the role of seawater intrusion, nitrogen (N)-cycle, and anthropogenic activities on the elevated groundwater concentrations of oxyanion-forming trace elements in an ultramafic environment and to study the factors controlling the hydrogeochemical characteristics of groundwater in a broader, ultramafic-dominated area o...
Article
Full-text available
A scientometric analysis based on the Scopus database was conducted to provide insight into research activities on the occurrence of potentially toxic elements (PTEs) (As, Cd, Co, Cr, Cu, Hg, Ni, Pb, Sb, and Zn) in groundwater during 1970–2019. The selection of these PTEs was based on their significance concerning their reference frequency in envir...
Article
Full-text available
The occurrence, mobilization, and origin of Potentially Toxic Eelements (PTEs) in the environment is always a difficult research question that has not been fully addressed to date; solving this problem would be a major achievement for environmental science and pollution research, a significant scientific breakthrough, and an important contribution...
Article
Full-text available
The occurrence of Potentially Toxic Elements (PTEs) and other chemical elements in urban and peri-urban soils impacts human health and quality of life, posing a challenge for geoscientists. This study investigated the soil geochemistry of Lamia City, focusing on identifying the geogenic and anthropogenic origins of elements. A total of 168 topsoil...
Conference Paper
Full-text available
Extended Abstract The village of Loutraki in the region of Pella in Central Macedonia, Greece, is known for its association with the 'Pozar' thermal baths. These thermal baths utilise geothermal hot water, which is a key attraction for tourists. Moreover, this geothermal resource plays an essential role in both the tourist attraction and the genera...
Article
Full-text available
The chemical properties of soils in the Sarigkiol Basin, Western Macedonia, Greece, were studied to investigate the potential for new land uses in post-mining areas. An extensive dataset of chemical parameters was analyzed in a total of 34 representative soil samples from the Sarigkiol Basin. The data were processed using statistical methods (Spear...
Conference Paper
Full-text available
The DRASTIC method is widely used in order to evaluate the vulnerability of the aquifers in an area mainly from nitrates and other types of pollutants. This work seeks to assess the groundwater vulnerability in the Elassona Basin, Thessaly, through the DRASTIC method. The DRASTIC Index for the Elassona Basin was computed using hydrogeological facto...
Conference Paper
Full-text available
In this work, the chemical properties of the soils in the Sarigkiol Basin, Western Macedonia, Greece, are studied. The Sarigkiol Basin is of great importance for energy production in Greece. The main activities are lignite mining, power plant operation, agriculture, and livestock farming. Emphasis was placed on the presence of Potentially Toxic Ele...
Article
Full-text available
In this study, the quality of groundwater has been evaluated for irrigation in Khana and Gokana areas of Rivers State, Nigeria. Standard sampling and analytical methods were used. Chemical features were investigated via chemometric determinations, including major ions and potentially toxic elements (PTEs) and saturation index (SI) of selected miner...
Conference Paper
Full-text available
Η περιβαλλοντική γεωχημεία είναι ένα ιδιαιτέρως σημαντικό και εξαιρετικά ενδιαφέρον επιστημονικό πεδίο, καθώς διερευνά το αποτύπωμα των δυνητικά τοξικών στοιχείων (όπως, As, Cd, Cr, Cu, Ni, Pb, Zn, κ.λπ.) στο περιβάλλον και της τοξικότητάς τους στους ζώντες οργανισμούς (ανθρώπους, ζώα και φυτά), ακόμα και όταν οι συγκεντρώσεις τους είναι πολύ χαμηλ...
Conference Paper
Full-text available
It is widely accepted that the occurrence, mobilization, transport, and fate of Potentially Toxic Elements (PTEs) in natural waters depend mainly on the prevailing geological, environmental, and geochemical conditions (Guo et al., 2014; Papazotos et al., 2020; Tziritis et al., 2012). Generally, the source of PTEs in the environment, including water...
Article
Full-text available
The hydrogeochemical processes and natural background levels (NBLs) of chromium in the ultramafic environment of Vermio Mountain, Western Macedonia, Greece, were studied. Seventy groundwater samples were collected from 15 natural springs between 2014-2020, and an extensive set of physical and chemical parameters were determined. The ultramafic-domi...
Conference Paper
Full-text available
As) και άλλων οξυανιόντων όπως βόριο (Β), σελήνιο (Se) και βανάδιο (V) στα υπόγεια νερά του παράκτιου αλλουβιακού υδροφόρου ορίζοντα του Σχίνου Κορινθίας. Ένα μεγάλο σύνολο χημικών αναλύσεων κύριων ιόντων, δυνητικά τοξικών στοιχείων και λοιπών ιχνοστοιχείων από 33 αντιπροσωπευτικά δείγματα υπογείου νερού, πέντε δείγματα πετρώματος και τρία εδαφικά...
Conference Paper
Full-text available
Οι κύριες επιπτώσεις των αγροτικών δραστηριοτήτων στο περιβάλλον, λόγω της εντατικής και αλόγιστης χρήσης αγροχημικών προϊόντων είναι οι εξής: α) επιβάρυνση ποιότητας εδαφών (αύξηση As, Cd, Cu κλπ), β) υποβάθμιση ποιότητας των υπογείων νερών (αύξηση NO3-, PO43-, Cr κλπ). Στην παρούσα εργασία, προσδιορίζονται οι επιπτώσεις και ο ρόλος των εκτεταμένω...
Conference Paper
Full-text available
The West Macedonia Lignite Center (WMLC) is located in Ptolemais basin and constitutes the largest coal-mining district in Greece. The power plants (PPs) in Kardia and Ag. Dimitrios are in operation today, whereas the Ptolemais PP has ceased operations since 2014. This paper examines the influence of the lignite combustion products (fly-ash) on gro...
Article
Full-text available
This study aims to determine the major factors controlling the qualitative characteristics of groundwater and examine the drinking and irrigation suitability in the Marathon basin, NE Attica, Greece. In this frame, a total of 25 groundwater samples were collected from irrigation wells during October 2014. The dominant ions are Cl⁻ for anions and Ca...
Article
Full-text available
The aim of this paper is to provide a methodology including statistical tools and spatial techniques, in order to identify the various potential sources of chromium (Crtot) in the Sarigkiol basin, Western Macedonia, Greece, where elevated concentrations of Crtot in groundwater have been recorded since 1996. Integrated hydrochemical approach and sta...
Conference Paper
Full-text available
Chromium (Cr) includes two main species in natural aquatic systems, the trivalent (Cr 3+) and the hexavalent (Cr 6+) one (Richard and Bourg, 1991). The speciation of Manganese (Mn) in aquatic environment is controlled by the prevailing physical and chemical conditions, which includes mainly two oxidation states, the soluble divalent (Mn 2+) and the...
Conference Paper
Full-text available
Interpolation methods categorized either as deterministic or as geostatistical, are based on known values in order to estimate unknown values for any data. They are mostly used for generating spatial distribution maps. Deterministic interpolation methods are based on mathematical equations. The most common deterministic methods are inverse distance...
Conference Paper
Full-text available
Synthetic nesquehonite (MgCO3·3H2O), a promising building material (Glasser et al., 2016), as recently gained interest as mineralization product of carbon capture and storage (CCS). The main advantage of nesquehonite in being a potential permanent storage solution for CO2 emissions is that at least 30% of its structure consist of CO3 2-(Ferrini et...
Conference Paper
Full-text available
Κατά τη διάρκεια της επανέκθεσης των συλλογών του Ορυκτολογικού Μουσείου της Σχολής Μηχανικών Μεταλλείων και Μεταλλουργών του Μετσόβιου Πολυτεχνείου εντοπίστηκε ένα δείγμα με την ένδειξη Lapis Lazuli με προέλευση το Λάτσιο της Ιταλίας. Η αναφερόμενη θέση επιβεβαιώθηκε ακριβέστερα ως λόφος Αλμπάνι δώδεκα χιλιόμετρα νοτίως της Ρώμης. Πράγματι κατά το...
Conference Paper
Full-text available
In Elassona region, in the Potamia area, there are two lignite deposits –Amourio and Domenikos with total volume of 187.5x106tn. The aim of this paper is to apply the analytical hierarchy process (ARP) using ArcGIS software to compile a simplified model of optimal lignite exploitation with hydrogeological criteria. Multi-criteria decision analysis...
Article
Full-text available
Urban geochemistry is a scientific discipline which is growing in the recent years mainly because of the environmental impact caused by urbanization. The present study aims to determine the concentrations of potentially harmful elements (PHEs) on surface soils (0-10cm) in Athens parks. Soil sampling was carried out in public park areas within the A...
Article
Full-text available
The overexploitation of groundwater and groundwater salinization cause quantitative and qualitative degradation of the water resources. The objectives of this research are to identify and investigate the extent of seawater intrusion and nitrate pollution into the coastal plain of Marathon in Eastern Attica, Greece. In the frame of this, 25 groundwa...
Conference Paper
Full-text available
Determining the hydrogeochemical processes has always been a challenge for scientists. The aim of this work is the study of the principal hydrogeochemical processes controlling groundwater quality in the Marathon coastal plain, Greece, with emphasis on the origin of the solutes. Various physicochemical parameters and major ions of twenty-five groun...
Conference Paper
Full-text available
The Sapes area, Northeastern Greece, represent a deeply eroded Oligocene volcanic edifice built up of post-collisional intermediate-to-acidic intrusives and their volcanic equivalents. The area hosts a telescoped porphyry-epithermal system and associated high-sulfidation epithermal Au-Ag-Cu-BiTe mineralization within advanced argillic alteration li...
Conference Paper
Full-text available
The overexploitation of groundwater and groundwater salinization cause quantitative and qualitative degradation of the water resources. The objectives of this research are to identify and investigate the extent of seawater intrusion and nitrate pollution into the coastal plain of Marathon in Eastern Attica, Greece. In the frame of this, 25 groundwa...
Conference Paper
Full-text available
Urban geochemistry is a scientific discipline which is growing in the recent years mainly because of the environmental impact caused by urbanization. The present study aims to determine the concentrations of potentially harmful elements (PHEs) on surface soils (0-10 cm) in Athens parks. Soil sampling was carried out in public park areas within the...
Conference Paper
Full-text available
The Sapes area is a telescoped porphyry-epithermal system, hosted within Oligocene postcollisional calc-alkaline to high-K calc-alkaline granodiorite, microdiorite, and quartz-feldspar porphyries and their volcanic equivalents. Sapes is characterized by widespread development of silicic-advanced argillic alteration lithocaps and associated high-sul...

Questions

Questions (3)
Question
i mean the use of PHREEQC model without the coupling of other hydrological (maybe?) models.
Question
Are there papers which writes about differences in phreeqc, wateq4f and minteq (or minteqv4) thermodynamics databases and which of these is preferable?
Question
I would like to ask if there is any paper explaining how the surface hydrology affects the geochemical modeling (PHREEQC)?

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