Thesis supervisor: Róbert Szép
Location of studies (in Hungarian): Csíkszereda Abbreviation of location of studies: Csík
Description of the research topic:
The research on topic of air pollution targets the construction of various forecasting models, the accidental or continuous emission tests, studying global, regional, and local pollution problems. In this case, we conduct a local investigation based on the air pollution of the Ciuc basin, in a period between 2007-2015. Global pollution problems can be solved by local solutions, hence exploring air pollution problems in the Ciuc basin will also receive a substantial role in shaping the global models.
The required study of airborne dust (PM10) and tropospheric ozone (O3), are complex air pollution components of urban and non-urban environments, having various chemical and physical characteristics. The PM10 appears as a by-product of biomass combustion, industrial emissions, mining activity, dried up peat soils and causes pulmonary problems. The O3, a secondary air polluting gas, which has a detrimental effect due to the high oxidizing effect of the gas molecules, in case of human or animal lungs, oxidizes fatty acids, causing various illnesses, while in the case of the vegetation during the process of photosynthesis, has a detoxification effect, accelerating the aging process of the plant.
Being an enclosed basin with frequent inversion periods, the air pollutants effect multiplies by accumulation. The stable and unstable periods influence the concentrations of the particulate matters and ozone, which according to our hypothesis, can be observed on a daily and seasonal basis also, whilst changes can be observed in the indicators of human health.
Determination of the air natural threshold limits and oxidative effect shows the effects of air pollution on the oxide-reduction processes of the biotic and non-biotic environments. It is essential to study the given pollutants health effects, which show high positive correlation between the number of diseases (coronary heart disease, respiratory diseases and cancer) and pollutants concentration.
Then, the aim is to describe the relationships between the Ciuc and the surrounding basins (Trei-Scaune, Brasov), regarding the variations on air pollution, the spread of background contamination and the research of different climatological and meteorological changes.
Using AERMOD software and mathematical models, movement spread (point sources, area sources) and pollutants scavenging (wet and dry) from the atmosphere will be shown.
We plan to build similar models to study the relationship between meteorological indicators and pollutants, such as dew point-particulate matter; vertical and horizontal atmospheric stability relationship with ozone concentrations; airborne dust and radiation balance; relationship between chemical composition of rainwater and particulate matter.
Number of students who can be accepted: 1
Deadline for application: 2017-12-02
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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