témavezető: Tóth-Nagy Georgina
helyszín (magyar oldal): Pannon Egyetem, Környezetmérnöki Intézet helyszín rövidítés: PE
A kutatási téma leírása:
The lower part of the atmosphere is currently known as air and it is formulated mainly from nitrogen, oxygen, trace gases, particles and other gases. The term air pollutant or air pollution is characterized based on the subject of space, time and effect for a specific set of situations. Definition of air pollution is defined as the presence of unwanted material in the air, in amounts which are big enough to create detrimental effects. Urban air pollution causes a considerable danger to human health, the environment and also the life of many people who are living in some of the world’s biggest cities. Urbanisation and connected increase in traffic industrialisation have consequence in the rise of air pollution in overcrowded areas, result in degradation in air quality. In the majority of developing country cities, urban air contamination from the mobile sources is a main concern. With the increasing income, the utilization of motorized transport is also predicted to rising and which can possibly deteriorate the quality of air. It is predicted that by 2050 global population will increase to above 9 billion and it is also predicted that living in cities will increase from 50 to 70 per cent up to 6.3 billion people. This swift increase in urban population is estimated to happen mainly in middle income and developing countries and urban air pollution will become the topmost reason for the mortality all over the world. The urban extension has generated numerous environmental issues, specifically urban sprawl which causes to the decrease of open green areas and a rise in traffic and energy utilization. Thus, air pollution is considered is one of the major environmental issues connected with urbanization. In recent studies, the effect of the changing 21st-century climate on air quality was estimated by using perturbation analysis in chemical transport models (CTMs), and CTM simulations driven by general circulation model (GCM) simulations. The strong correlation between air quality and metrological variables suggest that air quality is highly dependent on the changing weather conditions and therefore especially susceptible to any climate. To define how air pollutants, disperse in ambient air, mathematical simulation is used which is the dispersion modelling of air contamination. With aim of measuring the pollution level in the areas, the model is used to demonstrate physical and chemical processes. For this reason, the main focus of the PhD project will be urban air quality with special attention to climate change. Baku and Budapest will be chosen as sample areas, their main sources of pollution will be identified. GIS maps will be used in order to represent emission sources in the chosen areas. After obtaining the required data for parameters of major air pollutants in the chosen areas trough monitoring systems, the model calculation will be started. Empirical/Statistical methods will be use to find the connection between Baku’s and Budapest’s CO2 emission and the EKC hypothesis will be tested. Modelling climate change impacts: chemical transport modelling (CTM), past, current and future situation and create an own forecast modell. Mitigation targets 2030, 2050: emission reduction according to the mitigation targets. Policy instrument for climate change mitigation: administration instruments, regulation instruments (carbon tax, carbon emission trading), economic instruments.
A kutatási téma előzményei:
− Városi légszennyezettség vizsgálata térinformatikai és matematikai statisztikai módszerek alakalmazásával, doktori értekezés (VMADI, 2016)
− Trájer Attila, Nagy Georgina, Domokos Endre:Exploration of the heterogeneous effect of climate change on ozone concentration in an urban environment. International Journal of Environmental Health Research 2018 pp. 1-14., 14 p. (2018)
− Nagy Georgina, Silvia Vilcekova, Domokos Endre: Modelling the prediction of the NOx concentration in the outdoor air applying dimensional analysis. Fresenius Environmental Bulletin 24 : 11 pp. 3963-3972. , 10 p. (2015)
− Ghada Sahbeni, Georgina Nagy, Tekle Gurgenidze (2019) Examination of Air Quality Indexes (AQIs) Role in Urban Air Quality Assessment. Asian Journal of Applied Science and Technology (AJAST) Volume 3, Issue 1, Pages 130-142, Jan-March 2019
felvehető hallgatók száma: 1
Jelentkezési határidő: 2019-08-31
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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