György Deak

György Deak
Institutul Naţional de Cercetare-Dezvoltare pentru Protecţia Mediului / Universitatea Politehnica din Bucuresti

Eng. PhD Habil
Sturgeon monitoring on the Danube https://web.facebook.com/incdpmB/posts/1338985309854426

About

394
Publications
90,336
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
763
Citations
Citations since 2016
331 Research Items
685 Citations
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
Introduction
Additional affiliations
June 2018 - present
Polytechnic University of Bucharest
Position
  • Habil
Description
  • Associate PhD coordinator in the field of Environmental Engineering within the Doctoral School of Biotechnical Systems Engineering from Politehnica University of Bucharest. (M.O. no. 4209/31.07.2018 from the Ministry of Education) Habilitated for doctoral studies in the field of Environmental Engineering within the Technical University of Cluj-Napoca (M.O. no. 3387/22.03.2018 from the Ministry of Education)
July 2010 - present
INCDPM -National Research and Development Institut Enviromental Protection
Position
  • Manager
Description
  • Senior Researcher

Publications

Publications (394)
Article
Full-text available
Citation: Baidrulhisham, S.E.; Noor, N.M.; Hassan, Z.; Sandu, A.V.; Vizureanu, P.; Ul-Saufie, A.Z.; Zainol, M.R.R.M.A.; Kadir, A.A.; Deák, G.
Article
Full-text available
Former mining sites cause serious environmental problems worldwide as they are contaminated with hazardous levels of metals. Mined lands are characterized by a deserted landscape due to the lack of organic matter in soil. Research analyses confirmed that the structure of soil in abandoned surface mines has affected the occurrence of ecological proc...
Article
Full-text available
This research is a necessity given the importance of conserving and protecting aquatic ecosystems, as well as declining species, especially sturgeon species. Given that these species are considered vulnerable and critically endangered according to IUCN Red List rules and because there is currently insufficient data to prove their possible breeding...
Article
Full-text available
Feature selection is considered as one of the essential steps in data pre-processing. However, all of the previous studies on predicting PM10 concentration in Malaysia have been limited to statistical method feature selection, and none of these studies used machine-learning approaches. Therefore, the objective of this research is to investigate the...
Article
Full-text available
Particulate matter (PM10) is the main air pollutant during high particulate event (HPE) or also known as haze in Southeast Asia specifically in Malaysia. PM10 emanation is believed to cause the strongest harm to public health and environment during this time. Therefore, it is very important to develop good PM10 prediction model during these event t...
Article
Full-text available
Ground-level ozone (O3) is one of the most significant forms of air pollution around the world due to its ability to cause adverse effects on human health and environment. Understanding the variation and association of O3 level with its precursors and weather parameters is important for developing precise forecasting models that are needed for miti...
Article
Full-text available
Ground-level ozone (O3) is one of the most significant forms of air pollution around the world due to its ability to cause adverse effects on human health and environment. Understanding the variation and association of O3 level with its precursors and weather parameters is important for developing precise forecasting models that are needed for miti...
Article
Full-text available
The aim of this research was to evaluate the results obtained by ultrasonic tagging of sturgeon species and to collect field data for the period 2019-2021. Thus, an analysis was made of the information collected from the beginning of the period and also will be presented the migration capacity of sturgeons in the area of hydrotechnical arrangements...
Article
Full-text available
Ecosystem-based approaches to climate change mitigation involves the use of ecosystems carbon storage and sequestration services. For this purpose, comprehensive CO2 efflux (Reco) measurements of the wetland and terrestrial ecosystems were performed in the adjacent area of Bucharest, by applying two complementary methods using close chambers: dynam...
Article
Full-text available
Many invasive plant species use interactions with their anthropic environment as a propagation factor and benefit from climate changes, which have become accentuated in the last decade. The way such species interact with climate changes, as well as their high specific ecological plasticity, gives them a consistent advantage over native plant specie...
Article
Full-text available
One of the worldwide approaches for climate change mitigation is to act on reducing the anthropogenic contribution to the concentration of greenhouse gases (GHGs) in the atmosphere. The terrestrial and aquatic ecosystems are characterized by their natural exchange of GHGs with the atmosphere and also as a result of anthropogenic activities (managem...
Article
Full-text available
Abstract The stability of air masses in the atmosphere influences not only the dispersion but even the accumulation of pollutants in certain areas. The most common methods for determining the stability in the atmosphere are the Richardson number, the Monin-Obukhov length and the Pasquill-Gifford method. For this study, the Monin-Obukhov length met...
Chapter
Full-text available
The recovery potential of bricks wastes in obtaining environmental friendly materials is sustained by their pozzolanic properties, which can be exploited within a Portland cement—brick powder waste (BPW) system, thus reducing the amount of waste as well as the consumption of raw materials and CO2 emissions from cement factories. These properties we...
Chapter
Full-text available
Morpho-hydrodynamic changes are one of the major problems affecting the abiotic sphere and the ecological status of water bodies. In order to assess the impact of the works carried out in the Bystroe Channel on the hydrodynamic and hydromorphological conditions of the Chilia and Old Stambul Danube branches, solid scientific based tools are required...
Chapter
Full-text available
Shipping is one of the major pressures that have a negative impact on conservation efforts in protected wetlands in Romania. Based mainly on the use of fossil fuels, shipping activities contribute significantly to water and air pollution. Reducing the carbon footprint by implementing ammonia and hydrogen on board has gained increasing interest in r...
Chapter
Full-text available
Monitoring and inspection of apartment building facades with the help of thermography aims to identify and evaluate construction defects and their effects on thermal efficiency. The analysis of facade cracks is of great importance in the investigation of construction issues, especially in the rehabilitation processes of buildings. In this paper we...
Chapter
Full-text available
Carbon sequestration proved to be one of the best strategies in climate mitigation processes and forest have the capacity to sequester and store important amounts of carbon. In this study the carbon sequestration capacity of a hardwood forest in Eastern Romania is analyzed by using the European Information Scenario Model through a business-as-usual...
Chapter
Full-text available
Green spaces located on buildings are an important part of urban environment, improving the quality of life through their aesthetic and functional advantages. However, they consume large amounts of resources from cities’ water supply systems. Moreover, rapid urbanization and population growth amplifies the issue on clean water supply, increasing th...
Chapter
Full-text available
Zeolite is an abundant mineral in Indonesia, but is not maximally utilized. Natural zeolite possesses several properties, such as dehydration, adsorption, ion exchange, catalysis, and separation. In general, natural zeolite contains both organic and inorganic impurities that cover their pores. Thus, natural zeolite should be initially activated to...
Chapter
Full-text available
One of the most effective and simplest methods to minimize waste as well as reduce the environmental problems associated with waste disposal is by utilizing waste materials as a cement replacement in hot mix asphalt (HMA) mixtures which can provide the same or better stability as the conventional method. Fillers play an important role in the stabil...
Chapter
Full-text available
Fisheries research has focused mainly on the dynamics of populations under exploitation in order to be able to inform what measures are needed for the sustainable harvesting of biological resources. A necessary tool for the successful achievement of this objective is to determine the age of the fish. Thus, this article will detail a method for iden...
Chapter
Full-text available
Water pollution by emerging contaminants such as antibiotics is a major and current problem in the field of environmental protection. The presence of these micropollutants in surface waters, even in low concentrations, disturbs the ecological balance and leads to the selection and increase of the antibiotic resistant bacteria incidence, so that the...
Chapter
This paper analyses the effect of glucose supplementation in the treatment of anaerobically digested vinasse (AnVE) through reduction performance and biomass growth by using aerobic SBR system. The result revealed that the COD and ammonium reduction with the addition of glucose supplementation (65.3 ± 6.0 and 30.0 ± 5.5%) was greater than the react...
Chapter
Full-text available
Particulate matter (PM10) is the key indicator of air quality index in Malaysia and Southeast Asia's main haze-related pollutant. PM10 emanation is believed to cause the strongest harm to public health and the environment. Therefore, it is very important to study the temporal and spatial characteristics of PM10 and the weather parameters, hence the...
Article
Full-text available
There are several species of macrophyte which have the ability to absorb heavy metals from water and, therefore, are used to retain and remove them. In the present paper, the concentrations of heavy metals (Zn, Cu, Ni, Cd, Pb and Cr) were investigated in sediment samples from the Argeș River and their potential transfer from sediments to Phragmites...
Chapter
Full-text available
The stability of air masses in the atmosphere influences not only the dispersion but even the accumulation of pollutants in certain areas. The most common methods for determining the stability in the atmosphere are the Richardson number, the Monin-Obukhov length and the Pasquill-Gifford method. For this study, the Monin-Obukhov length method was us...
Article
Full-text available
The work relates to a composition of an additive mortar with a volumetric weight below 250kg/mc, the thermal conductivity coefficient below 0,08kcal/m×h×°C, mechanical strengths more than 7daN/cm² with self-cleaning effect after commissioning. In order to obtain a self-cleaning effect over time by eliminating chromatic deviations, the composition o...
Article
Full-text available
Conservation and restoration of heritage structures represents a highlighted issue, the main challenge being to bring the cultural objective to its original state, or as close as possible to it by using eco-friendly materials with lover impact on the environment and human health. Within this study, the calcium zincate nanoparticles have been synthe...
Conference Paper
Full-text available
Monitoring and inspection of apartment building facades with the help of thermography aims to identify and evaluate construction defects and their effects on thermal efficiency. The analysis of facade cracks is of great importance in the investigation of construction issues, especially in the rehabilitation processes of buildings. In this paper we...
Conference Paper
Full-text available
Carbon sequestration proved to be one of the best strategies in climate mitigation processes and forest have the capacity to sequester and store important amounts of carbon. In this study the carbon sequestration capacity of a hardwood forest in Eastern Romania is analyzed by using the European Information Scenario Model through a business-as-usual...
Patent
Invenția se referă la un procedeu de epurare avansată (terțiară) a apelor uzate prin care poluanții de natură chimică și microbiologică conținuți în apele provenite de la fermele zootehnice sunt îndepărtați sau reduși sub anumite limite prin metode chimice, astfel încât acestea să poată fi valorificate la irigarea culturilor agricole. Procedeul con...
Patent
Full-text available
Invenția se referă la un procedeu de epurare avansată (terțiară) a apelor uzate prin care poluanții de natură chimică și microbiologică conținuți în apele provenite de la fermele zootehnice sunt îndepărtați sau reduși sub anumite limite prin metode chimice, astfel încât acestea să poată fi valorificate la irigarea culturilor agricole. Procedeul con...
Article
Full-text available
In the present work is presented a reusable support material based on waste, photo catalytically functionalized with zinc oxide film. The obtained immobilized catalyst was structurally characterized using SEM equipment and successfully used in the photocatalytic degradation of an organic compound present in aqueous solutions with yields of over 97%...
Article
Full-text available
In the context of the sustainable development, the problem of the widespread use of renewable energy resources, which are clean and inexhaustible, is becoming more acute. In this regard, it is necessary to develop some capture installations that use renewable energy sources as efficiently as possible and with low impact on the environment. This pap...
Article
Full-text available
The Lower Danube River is an important river both as a navigation pathway that connects Western and Eastern Europe and as a natural environment providing the carrying capacity for a variety of important fish species. In the Lower Danube, the most complex studies on fish fauna inventory date back to Grigore Antipa and Petru Bănărescu. This current s...
Article
Full-text available
The main goal of the current study is to analyze the fish species of the Lower Danube River course in the context of river engineering projects that have modified the river bed and river shores and added structures which were necessary for flood protection, converting terrain to agriculture and maintaining the navigation lanes. In order to gain kno...
Article
Full-text available
The use of wastes in the architecture of new binders for construction domain is the key for the success of the progress regarding environmental, technical and economical issues. For instance, bricks wastes have huge recycling value but are often discarded for worthless junk. The wastes glasses which are difficult to be recovered are regularly dispo...
Conference Paper
Full-text available
Recovery and recycling of cathode ray tube (CRT) waste glasses has been the focus of research in the last decade, due to their environmental and economic issues (such as leaching of lead ions, high disposal costs). A sustainable method of valorizing this hazardous waste is to embed it in cement, as a substitute for the natural aggregate. Therefore,...
Article
Full-text available
Evaluating the state of ichthyofauna at both the Lower Danube level and at the national level contains knowledge gaps regarding species dynamics, with the most complex studies regarding species composition being undertaken more than 50 years ago. Over time, the Danube River-an important navigation route that connects Western Europe with Asia-has su...
Article
Full-text available
Over the years, to maintain navigation along the Danube, the implementation of a series of hydrotechnical works was imposed in order to ensure the continuity of economic activities. Between 2011 and 2014, one such project was built in the vicinity of the county of Braila, on a secondary branch of the Danube-The Caleia branch. The main goal was to r...
Article
Full-text available
In big cities, certain meteorological phenomena can affect air quality even in cases where the main sources of pollution such as traffic have low intensity. The air pollution varies greatly, depending on the emission source and the type of pollutant. In addition, the dispersion of air pollutants is influenced by weather conditions, as well as other...
Article
Full-text available
In the current article, we will highlight on the role of algae in the treatment of wastewater. Algae cultures are an interesting solution to tertiary and quandary treatments because of their capacity to use inorganic nitrogen and phosphorus for their growth and to remove heavy metals, as well as some toxic organic compounds, thus, avoiding a second...
Conference Paper
Full-text available
Following the growing trend of packaging waste quantities, it has become more and more actual the issue of the impact of this waste flow over environment and human health, as a consequence of inappropriate disposal methods and technologies. For this purpose, waste hierarchy must be applied, focusing on waste prevention, prepare for reuse, recycling...
Article
Full-text available
Pharmaceuticals are a major group of emerging pollutants frequently identified in surface waters. The occurrence of pharmaceuticals as environmental pollutants is a problem involving multiple aspects and continue to cause new and serious challenges to ecosystems and human health. For example, antibiotics exert a selective pressure on bacterial comm...
Article
Full-text available
In the Lower Danube, sturgeon populations have declined dramatically in recent decades. Although efforts have been made at the legislative level since 2006, by forbidden commercial fishing, an assessment of stocks and conservation status of sturgeon species has not yet been made. In this context, it is necessary to estimate the age and growth rate...
Article
Full-text available
Considering that the production of energy from fossil sources causes environmental pollution, increasing health hazards or climate change, the research for new alternative energy sources and the development of high-performance renewable energy conversion systems are a basic concern nowadays. Thus, the development and the use of renewable energy sou...
Article
Full-text available
The Black Sea sturgeons are anadromous fish species, which migrate upstream on the Danube River for breeding. The distance traveled in the migration process varies depending on each species, from tens to hundreds of kilometers . After breeding, the anadromous sturgeons return to the Black Sea and go back to the Danube after a time that varies depen...
Article
Full-text available
Atmospheric CO2 is rising rapidly. As forests cover some 43% of the Earth's surface, they are considered to be the largest terrestrial carbon sink on Planet Earth. Within this study, calculations of the most abundant tree species were conducted in the study area, which is situated in the Eastern region of Romania. Thus, the forest carbon balance fo...
Article
Full-text available
Carbon dioxide is one of the greenhouse gases responsible for the effects of climate change. The soil respiration process is an important component of the carbon circuit in nature, through which carbon dioxide returns to the atmosphere. The concentration of CO2 in the atmosphere is directly influenced by any change of carbon flow produced in soil,...
Article
Full-text available
The effects of climate change are becoming more intense in the last decades. Moreover, according to many official reports, climate changes are directly affecting ecosystems and their services. To assess the impact of climate change on ecosystems, various methods are being used in order to identify changes and interactions with other pressures such...
Article
Full-text available
This paper aims to identify the impact of anthropogenic changes caused by the construction of the Bastroe Canal on the hydrology, hydrochemistry and biodiversity of the Danube Delta Biosphere Reserve (DDBR). The paper wants to provide a knowledge tool that can be a working basis for government and local decision-makers due to the special importance...
Article
Full-text available
Located in the Danube Delta Biosphere Reserve, the Chilia branch serves as country boundary between Romania and Ukraine. The former state started in 2004 a project intended to increase the navigability capacity of Bystroe Channel, the environmental impact of the works carried out being discordantly considered by the Romanian and Ukrainian authoriti...
Article
Full-text available
The most recent studies in the field of heterogenous catalysis are directed towards the diffrent anchoring supports for immobilising commonly employed photocatalysts for the degradation of emergent organic compounds from wastewater. The technique of immobilisation of the catalytic semiconductors helps to avoid one of the main technical issue which...
Article
Full-text available
The article presents the development of the Eco-label concept, from the current meaning of market to the sustainable meaning of green marketing. After analyzing the structure of economic goods which obtained the EU Ecolabel in 2019, the authors capture the transfer of knowledge in production of economic goods so environmentally friendly technologie...
Article
Full-text available
As a result of the urban development in the cities, the underground transport has become a priority transit route used by the population, due to the fact that it is a faster route and also due to the need to reduce the road traffic from the surface in order to improve the quality of the air (especially degraded from traffic emissions). Given the la...