TY - JOUR AU - Salma, Imre AU - Farkas, Árpád AU - Weidinger, Tamás AU - Balogh, Miklós TI - Firework smoke: Impacts on urban air quality and deposition in the human respiratory system JF - ENVIRONMENTAL POLLUTION J2 - ENVIRON POLLUT VL - 328 PY - 2023 PG - 9 SN - 0269-7491 DO - 10.1016/j.envpol.2023.121612 UR - https://m2.mtmt.hu/api/publication/34189383 ID - 34189383 AB - Particle number concentrations and size distributions resulting from the firework displays held in Budapest, Hungary every year on St. Stephen's Day were studied over a period of seven years. In the year most impacted, the total particle number concentration reached its peak measured level of 369 x 103 cm-3 5 min after the end of the display, and returned to the pre-event state within 45 min. The fireworks increased hourly mean concentrations by a factor of 5-6, whereas the concentrations in the diameter range of 100-1000 nm, in which the magnitude of the increase was the greatest, were elevated by a factor of 20-25. An extra particle size mode at 203 nm was manifested in the size distributions as result of the fireworks. The PM10 mass concentrations at peak firework influence and as 1-h mean increased 123 and 58 times, respectively, relative to the concentration before the display. The smoke was characterised by a relatively short overall atmospheric residence time of 25 min. Spatiotemporal dispersion simulations revealed that there were substantial vertical and horizontal concentration gradients in the firework plume. The affected area made up a large part of the city. Not only the spectators of the display at the venue and nearby areas, but the population located further away downwind of the displays and more distant, large and populous urban quarters were affected by the plume and its fallout. The fireworks increased the deposition rate in the respiratory system of females by a factor of 4, as a conservative estimate. The largest surface density deposition rates were seen in the segmental and sub-segmental bronchi, which represents an excessive risk to health. Compared to adults, children were more susceptible to exposure, with the maximum surface density deposition rates in their case being three times those of adults in the trachea. LA - English DB - MTMT ER - TY - JOUR AU - Salma, Imre AU - Farkas, Árpád AU - Weidinger, Tamás AU - Balogh, Miklós TI - A tűzijáték árnyai és fényei JF - MAGYAR KÉMIKUSOK LAPJA J2 - MAGY KEM LAP VL - 78 PY - 2023 IS - 7-8 SP - 214 EP - 217 PG - 4 SN - 0025-0163 UR - https://m2.mtmt.hu/api/publication/34084196 ID - 34084196 N1 - "A kutatást a Nemzeti Kutatási, Fejlesztési és Innovációs Hivatal támogatta a K132254 és a K124439 szerződések alapján." LA - Hungarian DB - MTMT ER - TY - JOUR AU - Fekete, János AU - Torma, Péter AU - Szabó, Anna AU - Balogh, Miklós AU - Horváth, Csaba AU - Weidinger, Tamás AU - Szabó, Gábor AU - Bozóki, Zoltán TI - Open photoacoustic cell for concentration measurements in rapidly flowing gas JF - PHOTOACOUSTICS J2 - PHOTOACOUSTICS VL - 30 PY - 2023 PG - 6 SN - 2213-5979 DO - 10.1016/j.pacs.2023.100469 UR - https://m2.mtmt.hu/api/publication/33681855 ID - 33681855 N1 - Department of Optics and Quantum Electronics, University of Szeged, Szeged, H-6720, Hungary ELKH-SZTE Research Group for Photoacoustic Monitoring of Environmental Processes, Szeged, H-6720, Hungary National Laboratory for Water Science and Water Security, Budapest University of Technology and Economics, Faculty of Civil Engineering, Department of Hydraulic and Water Resources Engineering, Budapest, H-1111, Hungary Department of Fluid Mechanics, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, H-1111, Hungary Department of Meteorology, Eötvös Loránd University, Budapest, H-1117, Hungary Export Date: 23 March 2023 Correspondence Address: Bozóki, Z.; Department of Optics and Quantum Electronics, Dom ter 9, Hungary; email: zbozoki@physx.u-szeged.hu AB - High temporal resolution concentration measurements in rapid gas flows pose a serious challenge for most analytical instruments. The interaction of such flows with solid surfaces can generate excessive aero-acoustic noise making the application of the photoacoustic detection method seemingly impossible. Yet, the fully open photoacoustic cell (OC) has proven to be operable even when the measured gas flows through it at a velocity of several m/s. The OC is a slightly modified version of a previously introduced OC based on the excitation of a combined acoustic mode of a cylindrical resonator. The noise characteristics and analytical performance of the OC are tested in an anechoic room and under field conditions. Here we present the first successful application of a sampling-free OC for water vapor flux measurements. LA - English DB - MTMT ER - TY - CHAP AU - Koren, Márton AU - Balogh, Miklós AU - Kristóf, Gergely ED - Jurčáková, Klára ED - Kellnerová, Radka TI - Transient Wind Forcing: a method for modelling wind shear in building-scale Large Eddy Simulations T2 - PHYSMOD 2022 - International Workshop on Physical Modeling of Flow and Dispersion Phenomena PB - Ústav termomechaniky AV ČR CY - Prága SN - 9788087012819 PY - 2022 SP - 111 EP - 111 PG - 1 UR - https://m2.mtmt.hu/api/publication/33120024 ID - 33120024 LA - English DB - MTMT ER - TY - CONF AU - Balogh, Miklós AU - Farkas, Árpád AU - Weidinger, Tamás AU - Salma, Imre TI - Dispersion simulation of firework-related aerosols T2 - CMFF’22 Workshop on " Coupling techniques in multiscale atmospheric models: Microphysics, local scale simulations, PBL structureels" PY - 2022 PG - 1 UR - https://m2.mtmt.hu/api/publication/33119050 ID - 33119050 LA - English DB - MTMT ER - TY - CHAP AU - Balogh, Miklós AU - Koscsó, Gábor AU - Kocsis, Bálint AU - Horváth, Csaba AU - Bozóki, Zoltán ED - Vad, János TI - AEROACOUSTIC NOISE REDUCTION OF OPEN PHOTOACOUSTIC CELLS SUPPORTED BY EXPERIMENTS AND SIMULATIONS T2 - Proceedings of Conference on Modelling Fluid Flow (CMFF'22) PB - Budapest University of Technology and Economics, Department of Fluid Mechanics CY - Budapest SN - 9789634218814 PY - 2022 SP - 452 EP - 459 PG - 8 UR - https://m2.mtmt.hu/api/publication/33119045 ID - 33119045 LA - English DB - MTMT ER - TY - CHAP AU - Balogh, Miklós AU - Zádeczki, Zalán TI - Légszárító patronok porózus közegében kialakuló áramlások szimulációja és modellezése nyílt forráskódú szoftverkörnyezetben T2 - VI. Gépészeti Szakmakultúra Konferencia PB - Gépipari Tudományos Egyesület (GTE) CY - Budapest SN - 9789639058446 PY - 2021 PG - 6 UR - https://m2.mtmt.hu/api/publication/32540235 ID - 32540235 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Papp, Bálint AU - Kristóf, Gergely AU - Istók, Balázs AU - Koren, Márton AU - Balczó, Márton AU - Balogh, Miklós TI - Measurement-driven Large Eddy Simulation of dispersion in street canyons of variable building height JF - JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS J2 - J WIND ENG IND AEROD VL - 211 PY - 2021 PG - 16 SN - 0167-6105 DO - 10.1016/j.jweia.2020.104495 UR - https://m2.mtmt.hu/api/publication/31806292 ID - 31806292 LA - English DB - MTMT ER - TY - JOUR AU - Koren, Márton AU - Balogh, Miklós TI - Kis léptékű nem-hidrosztatikus légköri áramlások numerikus modellezése mérnöki célokra JF - LÉGKÖR: AZ ORSZÁGOS METEOROLÓGIAI INTÉZET SZAKMAI TÁJÉKOZTATÓJA J2 - LÉGKÖR VL - 65 PY - 2020 IS - 3 SP - 130 EP - 135 PG - 6 SN - 0133-3666 UR - https://m2.mtmt.hu/api/publication/31720604 ID - 31720604 LA - Hungarian DB - MTMT ER - TY - GEN AU - Vránics, Dávid Ferenc AU - Balogh, Miklós AU - GYÖNGYÖSI, András Zénó AU - Istenes, Zoltán AU - WEIDINGER, Tamás AU - MAKKAY, Imre AU - Bottyán, Zsolt AU - Palik, Mátyás TI - Meteorological sensor placement considerations for a fixed-wing Unmanned Aircraft System. Előadás prezentáció TS - Előadás prezentáció PY - 2019 SP - 1 EP - 29 PG - 29 UR - https://m2.mtmt.hu/api/publication/31318279 ID - 31318279 N1 - http://www.isarra.org/wp-content/uploads/2019/08/ISARRA_2019_Tue_Vranics.pdf LA - English DB - MTMT ER -