Počet záznamů: 1  

Comparison of Atmospheric New Particle Formation Events Events in Three Central European Cities.

  1. 1. 0487756 - UCHP-M 2019 RIV GB eng J - Článek v odborném periodiku
    Németh, Z. - Rosati, B. - Zíková, Naděžda - Salma, I. - Bozó, L. - Dameto de España, C. - Schwarz, Jaroslav - Ždímal, Vladimír - Wonaschütz, A.
    Comparison of Atmospheric New Particle Formation Events Events in Three Central European Cities.
    Atmospheric Environment. Roč. 178, APR 2018 (2018), s. 191-197 ISSN 1352-2310
    Grant CEP: GA MŠk(CZ) LM2015037
    GRANT EU: European Commission(XE) 654109 - ACTRIS-2
    Grant ostatní:HSRFK(HU) K116788; HSRFK(HU) PD124283; NRDIO(HU) GINOP-2.3.2-15-2016-00055
    Institucionální podpora: RVO:67985858
    Klíčová slova: urban environment * ultrafine particles * new particle formation
    Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
    Obor OECD: Meteorology and atmospheric sciences
    Impakt faktor: 3.708, rok: 2017

    Simultaneous particle number size distribution measurements were performed in the urban environment of Budapest, Vienna, and Prague, three Central European cities located within 450 km of each other. The measurement days from the continuous, 2-year long campaign were classified for new particle formation (NPF) events using an adapted classification scheme for urban sites. The total numbers of NPF event days were 152 for Budapest, 69 for Vienna, and 143 for Prague. There were 12 days when new particle formation took place at all three sites; 11 out of these 12 days were in spring and in summer. There were only 2 (Budapest-Vienna), 19 (Budapest-Prague), and 19 (Vienna-Prague) nucleation days, when NPF did not occur on the third site. The main difference was related to source and sink terms of gas-phase sulphuric acid. Air mass origin and back-trajectories did not show any substantial influence on the atmospheric nucleation phenomena. The relative contribution of particles from NPF with respect to regional aerosol to the particles originating from all sources was expressed as nucleation strength factor. The overall mean nucleation strength factors were 1.58, 1.54, and 2.01 for Budapest, Vienna, and Prague, respectively, and showed diurnal and seasonal variations. The monthly mean NSF varied from 1.2 to 3.2 in Budapest, from 0.7 to 1.9 in Vienna, and from 1.0 to 2.3 in Prague. This implies that the new particle formation in cities is a significant source of ultrafine (UF) particles, and the amount of them is comparable to the directly emitted UF particles.
    Trvalý link: http://hdl.handle.net/11104/0282388
    Název souboruStaženoVelikostKomentářVerzePřístup
    0487756.pdf04.3 MBVydavatelský postprintvyžádat