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

387
Publications
84,670
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693
Citations
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 (387)
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
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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
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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
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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
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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...
Article
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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...
Chapter
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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
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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
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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
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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
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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...
Article
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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...
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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...
Article
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The limited availability and quality of water resources are key issues of water management, and the protection and preservation of water resources are a requirement in the context of accelerated economic growth and principles of sustainable development. The experimental research presented in this paper is based on the need to identify alternative w...
Article
Full-text available
The limited availability and quality of water resources are key issues of water management, and the protection and preservation of water resources are a requirement in the context of accelerated economic growth and principles of sustainable development. The experimental research presented in this paper is based on the need to identify alternative w...
Article
Full-text available
Exploitation of the main renewable energy sources (hydraulic, wind and solar radiation) in different installations involves the use of considerable surfaces, whether they are located on land or on water, having a negative impact on the environment. With the aim to dispose this deficiency, an installation that captures and integrates the three renew...
Article
Full-text available
Vegetables are a significant component of food strategies and an important source of vitamins through their content in mineral salts and their carbohydrate intake. In this paper are analyzed various factors that can affect the ability of certain vegetable crops from Romania to adapt to different conditions, including the climatic ones. Therefore, s...
Article
Full-text available
Vegetables are a significant component of food strategies and an important source of vitamins through their content in mineral salts and their carbohydrate intake. In this paper are analyzed various factors that can affect the ability of certain vegetable crops from Romania to adapt to different conditions, including the climatic ones. Therefore, s...
Conference Paper
Full-text available
The sturgeon species are a flagship species of the Danube River Basin that acts like an indicator of ecological health. They are protected by several international conventions (CITES, Habitats Directive, the Bern Convention and the Bonn Convention) and are assessed as endangered by the IUCN. Starting from 2011 the National Institute for Research an...
Article
Full-text available
Nowadays, there are various nanomaterials embedded in construction materials to improve their mechanical performances, durability, heating resistance as well as some specific properties such as self-cleaning and healing abilities. In this context, investigations regarding the effect of SiO2 nano-particles embedded in a cement matrix on mechanical p...
Conference Paper
Full-text available
Due to the lead content, the cathode ray tubes (CRTs) glass waste are considered a great environmental risk, as the lead ions from broken CRT glass can leach into soils when in contact with waters from landfills. Currently, the recycling techniques used for CRT glass are limited due to the different compositions of the panel, funnel and neck of the...
Article
Full-text available
Currently, the use of nanotechnology is being explored to create materials with specific properties that perform explicit functions. Thus, the investigation of different synthesis routes of various types of silica-based materials has been pursued. Mesoporous silica can be widely used in the field of environmental protection due to its specific and...