| Abstract [eng] |
Modelling of pollutants dispersion into the environment is an important tool used for monitoring of air quality, assessing the impact of air pollution on human health and environment, and providing accurate recommendations to legislators and the private sector. According to the data provided by the EU in 2021 in the EU-27 countries PM2,5, NO2, O3 air pollutants, exceeding their pollution limits recommended by WHO, resulted in a total of about 682 thousand cases of premature deaths. Due to these and other reasons, the European Commission in the proposal to review Air Quality Directives proposes to set stricter air quality standards for various air pollutants. The aim of the master’s thesis was to perform analysis of stationary pollution point sources and to model air pollution dispersion of chosen companies located in Kaunas FEZ territory, and to compare obtained results with the new proposed EU air quality standards. The objects of the master’s thesis research were 4 companies located in Kaunas FEZ territory – UAB “Axioma Metering“, UAB FREDA II, UAB „Finfoam“ ir Žemės ūkio kooperatyvas “Pienas LT“. During literature analysis of the master’s thesis the following topics were reviewed – the impact of air pollution on human health and environment, air pollutant dispersion, factors that determine and influence pollutant dispersion, the situation of air pollution and air quality in EU and European cities, overview of EU air quality legislation and proposed changes. The methodology part of the research provides information on research objects, describes free economic zones, Kaunas FEZ, gives information on pollution sources, and used software – AERMOD. Master’s study shows which of the research object exceed the existing and new EU proposed air pollution limit values and which pollutants – CO, NO2, PM2,5, PM10 – exceed the existing and the new EU proposed air pollution limit value – the maximum 8 and 24-hour concentrations of CO of all the research objects did not exceed the new proposed EU air pollutant limit values, the maximum NO2, PM2,5, PM10 pollutant concentrations of some of the research objects, evaluated with and without background pollution, exceeded the new proposed EU air pollutant limits values. |
