TY - JOUR AU - Ajtai, Tibor AU - Kiss-Albert, Gergely AU - Utry, Noémi AU - Tóth, Ádám AU - Hoffer, András AU - Szabó, Gábor AU - Bozóki, Zoltán TI - Diurnal variation of aethalometer correction factors and optical absorption assessment of nucleation events using multi-wavelength photoacoustic spectroscopy JF - JOURNAL OF ENVIRONMENTAL SCIENCES J2 - J ENVIRON SCI (CHINA) VL - 83 PY - 2019 SP - 96 EP - 109 PG - 14 SN - 1001-0742 DO - 10.1016/j.jes.2019.01.022 UR - https://m2.mtmt.hu/api/publication/30663317 ID - 30663317 N1 - Department of Optics and Quantum Electronics, University of Szeged, Szeged, H-6720, Hungary Hilase Development, Production, Service and Trading Limited, Székesfehérvár, H-8000, Hungary MTA-SZTE Research Group on Photoacoustic Spectroscopy, Szeged, H-6720, Hungary ELI-HU Non-Profit Ltd, Szeged, H-6720, Hungary Department of Earth and Environmental Sciences, University of Pannonia, P.O. Box 158, Veszprém, H-8201, Hungary MTA-PE Air Chemistry Research Group, P.O. Box 158, Veszprém, H-8201, Hungary Cited By :6 Export Date: 12 April 2022 Correspondence Address: Ajtai, T.; Department of Optics and Quantum Electronics, Hungary; email: ajtai@titan.physx.u-szeged.hu AB - A field measurement campaign was carried out during the late winter and early spring of 2015 in Budapest, the capital of Hungary. The size distribution (SD) and optical absorption of carbonaceous particulate matter (CPM) was measured online using a Scanning Mobility Particle Sizer (SMPS), a 7λ-aethalometer and an inhouse developed 4λ-Photoacoustic Spectrometer. Based on the SD data, the measurement period could be classified into days with and without new particle formation events (normal days and nucleation days), although particular nucleation-like events were observed on normal days as well. Three characteristic size modes were observed with CMDs of circa 15, 25 and 110 nm that corresponded to the nucleation, traffic and heating modes. Based on the temporal behavior of these modes both types of days were divided into distinctive daily periods (heating hours, traffic hours and nucleation hours). The optical absorption spectra (OAC and AAE) also displayed the same part of day behavior to that of SD. That way this paper is among the first to assess the optical response of urban nucleation events. Due to the simultaneous measurement of OAC by the 7λ-aethalometer and a 4λ-Photoacoustic Spectrometer, OAC was measured overall at 11 wavelengths. That way aethalometer correction factors (f and C) were determined at all aethalometer wavelengths using in situ reference photoacoustic measurements. Correction factors were found to have both wavelength and time of the day variation. In the case of f, no clear trend could be observed, however, Cref values increased both as a function of wavelength. LA - English DB - MTMT ER - TY - CHAP AU - Ajtai, Tibor AU - Kun-Szabó, Fruzsina AU - Fekete, János AU - Utry, Noémi AU - Kiss-Albert, Gergely AU - Szabó, Gábor AU - Bozóki, Zoltán ED - Ádám, Péter ED - Almási, Gábor ED - Mechler, Mátyás Illés TI - Légköri nukleáció spektrális válaszának vizsgálata fotoakusztikus módszerrel T2 - Kvantumelektronika 2018 PB - Pécsi Tudományegyetem Természettudományi Kar (PTE TTK) CY - Pécs SN - 9789634292500 PY - 2018 PG - 2 UR - https://m2.mtmt.hu/api/publication/30663582 ID - 30663582 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Pintér, Máté AU - Ajtai, Tibor AU - Kiss-Albert, Gergely AU - Diána, Kiss AU - Utry, Noémi AU - Janovszky, Patrick Martin AU - Palásti, Dávid Jenő AU - Smausz Kolumbán, Tamás AU - Kohut, Attila AU - Hopp, Béla AU - Galbács, Gábor AU - Kukovecz, Ákos AU - Kónya, Zoltán AU - Szabó, Gábor AU - Bozóki, Zoltán TI - Thermo-optical properties of residential coals and combustion aerosols JF - ATMOSPHERIC ENVIRONMENT J2 - ATMOS ENVIRON VL - 178 PY - 2018 SP - 118 EP - 128 PG - 11 SN - 1352-2310 DO - 10.1016/j.atmosenv.2018.01.036 UR - https://m2.mtmt.hu/api/publication/3328898 ID - 3328898 N1 - Megjegyzés-27227744 N1 Funding details: NCED, National Centre of Excellence in Desalination N1 Funding details: Emberi Eroforrások Minisztériuma N1 Funding details: EFOP-3.6.1-16-2016-00014, ESF, European Social Fund N1 Funding details: EGU, European Geosciences Union N1 Funding text: This work was also supported by the project GINOP-2.3.2-15-2016-00036 . Supported by the ÚNKP-16-4 New National Excellence Program of the Ministry of Human Capacities . The project has been supported by the European Union , co-financed by the European Social Fund under project number EFOP-3.6.1-16-2016-00014 . Megjegyzés-27230443 N1 Funding details: NCED, National Centre of Excellence in Desalination N1 Funding details: Emberi Eroforrások Minisztériuma N1 Funding details: EFOP-3.6.1-16-2016-00014, ESF, European Social Fund N1 Funding details: EGU, European Geosciences Union N1 Funding text: This work was also supported by the project GINOP-2.3.2-15-2016-00036 . Supported by the ÚNKP-16-4 New National Excellence Program of the Ministry of Human Capacities . The project has been supported by the European Union , co-financed by the European Social Fund under project number EFOP-3.6.1-16-2016-00014 . Megjegyzés-27233557 N1 Funding details: NCED, National Centre of Excellence in Desalination N1 Funding details: Emberi Eroforrások Minisztériuma N1 Funding details: EFOP-3.6.1-16-2016-00014, ESF, European Social Fund N1 Funding details: EGU, European Geosciences Union N1 Funding text: This work was also supported by the project GINOP-2.3.2-15-2016-00036 . Supported by the ÚNKP-16-4 New National Excellence Program of the Ministry of Human Capacities . The project has been supported by the European Union , co-financed by the European Social Fund under project number EFOP-3.6.1-16-2016-00014 . Megjegyzés-27244227 N1 Funding details: NCED, National Centre of Excellence in Desalination N1 Funding details: Emberi Eroforrások Minisztériuma N1 Funding details: EFOP-3.6.1-16-2016-00014, ESF, European Social Fund N1 Funding details: EGU, European Geosciences Union N1 Funding text: This work was also supported by the project GINOP-2.3.2-15-2016-00036 . Supported by the ÚNKP-16-4 New National Excellence Program of the Ministry of Human Capacities . The project has been supported by the European Union , co-financed by the European Social Fund under project number EFOP-3.6.1-16-2016-00014 . Department of Optics and Quantum Electronics, University of Szeged, Szeged, H-6720, Hungary MTA-SZTE Research Group on Photoacoustic Spectroscopy, Szeged, H-6720, Hungary ELI-HU Non-Profit Ltd., Szeged, H-6720, Hungary Hilase Development, Production, Service and Trading Limited, Székesfehérvár, H-8000, Hungary Department of Inorganic and Analytical Chemistry, University of Szeged, Dom Square 7, Szeged, 6720, Hungary Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, Szeged, 6720, Hungary MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1, Szeged, 6720, Hungary Cited By :6 Export Date: 24 September 2019 CODEN: AENVE Correspondence Address: Ajtai, T.; Department of Optics and Quantum Electronics, University of SzegedHungary; email: ajtai@titan.physx.u-szeged.hu Chemicals/CAS: carbon, 7440-44-0; graphite, 7782-42-5 Funding details: European Social Fund, ESF, EFOP-3.6.1-16-2016-00014 Funding details: European Commission Funding text 1: This work was also supported by the project GINOP-2.3.2-15-2016-00036 . Supported by the ÚNKP-16-4 New National Excellence Program of the Ministry of Human Capacities . The project has been supported by the European Union , co-financed by the European Social Fund under project number EFOP-3.6.1-16-2016-00014 . Last access, 2017 https://ushik.ahrq.gov/ViewItemDetails?system=mdr&itemKey=71987000 Last access: 2017.11.16. NIST Chemistry WebBook, 2017 NIST Chemistry WebBook. NIST Standard Reference Database Number 69. ( http://webbook.nist.gov/chemistry/ ) Last access: 2017, November 16. LA - English DB - MTMT ER - TY - GEN AU - Ajtai, Tibor AU - Utry, Noémi AU - Pintér, Máté AU - Kiss-Albert, Gergely AU - Szabó, Gábor AU - Bozóki, Zoltán TI - Emisszió kontrollált üzemanyagfejlesztés támogatása fotoakusztikus módszerrel PY - 2017 UR - https://m2.mtmt.hu/api/publication/3328933 ID - 3328933 N1 - A pécsi konferencia online elérhető programfüzete: https://pte.hu/sites/pte.hu/files/files/Esemenyek/2017/04/progra mfuzet_boritoval.pdf 2017. május 30-án Innovációs Napot rendeztek a Szegedi Tudományegyetemen, ennek keretében ez az előadás is elhangzott "A járműipari trendekről" c. szekció előadásai között. A Szegeden elhangzott előadás diaanyaga elérhető: http://www.inno.u-szeged.hu/sztehirek/2017-junius/innovacios- napot?objectParentFolderId=27675 LA - Hungarian DB - MTMT ER - TY - GEN AU - Kiss-Albert, Gergely AU - Pintér, Máté AU - Utry, Noémi AU - Simon, Károly András AU - Ajtai, Tibor AU - Szabó, Gábor AU - Bozóki, Zoltán TI - Két-hullámhosszú termodenuderes fotoakusztikus mérőműszer fejlesztése PY - 2017 UR - https://m2.mtmt.hu/api/publication/3328928 ID - 3328928 LA - Hungarian DB - MTMT ER - TY - GEN AU - Simon, Károly András AU - Kiss-Albert, Gergely AU - Pintér, Máté AU - Utry, Noémi AU - Ajtai, Tibor AU - Szabó, Gábor AU - Bozóki, Zoltán TI - Aeroszol-mérésre és forrásazonosításra optimalizált két-hullámhosszú fotoakusztikus rendszer PY - 2017 UR - https://m2.mtmt.hu/api/publication/3328917 ID - 3328917 N1 - Online programfüzet: https://m.pte.hu/sites/pte.hu/files/files/Esemenyek/2017/04/prog ramfuzet_boritoval.pdf LA - Hungarian DB - MTMT ER - TY - CHAP AU - Pintér, Máté AU - Kiss-Albert, Gergely AU - Utry, Noémi AU - Ajtai, Tibor AU - Szabó, Gábor AU - Bozóki, Zoltán ED - Keresztes, Gábor ED - Kohus, Zsolt ED - Szabó, Katalin ED - Tokody, Dániel TI - Légköri aeroszol komplex mikrofizikai és spektrális tulajdonságainak vizsgálata téli városi környezetben T2 - Tavaszi Szél 2017 Konferencia. Nemzetközi Multidiszciplináris Konferencia PB - Doktoranduszok Országos Szövetsége (DOSZ) CY - Budapest SN - 9786155586149 PY - 2017 SP - 198 EP - 199 PG - 2 UR - https://m2.mtmt.hu/api/publication/3328914 ID - 3328914 LA - English DB - MTMT ER - TY - CHAP AU - Kiss-Albert, Gergely AU - Pintér, Máté AU - Utry, Noémi AU - Ajtai, Tibor AU - Szabó, Gábor AU - Bozóki, Zoltán ED - Keresztes, Gábor ED - Kohus, Zsolt ED - Szabó, Katalin ED - Tokody, Dániel TI - Légköri korom aeroszolok illékonyság szerinti vizsgálata újonnan fejlesztett fotoakuzstikus mérőműszerrel T2 - Tavaszi Szél 2017 Konferencia. Nemzetközi Multidiszciplináris Konferencia PB - Doktoranduszok Országos Szövetsége (DOSZ) CY - Budapest SN - 9786155586149 PY - 2017 SP - 191 EP - 192 PG - 2 UR - https://m2.mtmt.hu/api/publication/3328903 ID - 3328903 LA - Hungarian DB - MTMT ER - TY - GEN AU - Pintér, Máté AU - Kiss-Albert, Gergely AU - Utry, Noémi AU - Ajtai, Tibor AU - Szabó, Gábor AU - Bozóki, Zoltán TI - Investigating the Source Dependence of Aethalometer Correction Factors Using an In-House Developed Multi-Wavelength PhotoAcoustic Spectrometer PY - 2017 UR - https://m2.mtmt.hu/api/publication/3328901 ID - 3328901 N1 - Poster A konferencia online programfüzete: http://aaarabstracts.com/2017/ConferenceProgram.pdf LA - English DB - MTMT ER - TY - JOUR AU - Smausz Kolumbán, Tamás AU - Kondász, Bence AU - Gera, Tamás Bence AU - Ajtai, Tibor AU - Utry, Noémi AU - Pintér, Máté AU - Kiss-Albert, Gergely AU - Budai, Judit AU - Bozóki, Zoltán AU - Szabó, Gábor AU - Hopp, Béla TI - Determination of UV-visible-NIR absorption coefficient of graphite bulk using direct and indirect methods JF - APPLIED PHYSICS A - MATERIALS SCIENCE AND PROCESSING J2 - APPL PHYS A-MATER VL - 123 PY - 2017 IS - 10 PG - 7 SN - 0947-8396 DO - 10.1007/s00339-017-1249-y UR - https://m2.mtmt.hu/api/publication/3320425 ID - 3320425 N1 - MTA-SZTE Research Group on Photoacoustic Spectroscopy, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary Department of Optics and Quantum Electronics, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary Cited By :19 Export Date: 12 April 2022 CODEN: APAMF Correspondence Address: Smausz, T.; MTA-SZTE Research Group on Photoacoustic Spectroscopy, Dóm tér 9, Hungary; email: tomi@physx.u-szeged.hu LA - English DB - MTMT ER -