
Atmosphere, Journal Year: 2025, Volume and Issue: 16(5), P. 540 - 540
Published: May 2, 2025
Particulate matter (PM10 and PM2.5) is a key contributor to urban air pollution poses significant health risks, particularly in densely populated areas. While conventional quality monitoring focuses on particle size concentration, this study emphasizes the importance of understanding chemical composition emission sources for effective management. PM samples were collected between 2019 2022 at two locations Republic Slovenia: traffic-dominated site an industrial area. Annual average PM10 concentrations ranged from 14 34 µg/m3, those PM2.5 9 22 µg/m3. In addition decreasing annual concentrations, notable reduction exceedance days was observed 2022, indicating effectiveness recent improvement measures. Meteorological data statistical models used assess environmental influences variability. Advanced SEM-EDS analysis revealed substantial seasonal spatial differences composition, with elements such as silicon (4.3–28.4%), carbon (13.1–61.7%), trace amounts lead zinc varying across sites types. Mineral dust (Si, Al, Ca, Fe, Mg), originating soil resuspension, construction, Saharan dust, dominant. Combustion-related particles containing C, Pb, Zn, Fe oxides associated vehicle emissions, processes, biomass burning. Secondary aerosols, sulphates nitrates, showed trends, higher summer winter, respectively. The results confirm that levels are driven by complex interactions local weather conditions, dynamics. supports targeted policy measures, regarding residential heating traffic improve quality.
Language: Английский