Phenomenology of ultrafine particle concentrations and size distribution across urban Europe

0571689 - ÚCHP 2024 RIV GB eng J - Článek v odborném periodiku
Trechera, P. - Garcia-Marles, M. - Liu, X. - Reche, C. - Perez, N. - Savadkoohi, M. - Beddows, D. - Salma, I. - Vorosmarty, M. - Casans, A. - Casquero-Vera, J.A. - Hueglin, C. - Marchand, N. - Chazeau, B. - Gille, G. - Kalkavouras, P. - Mihalopoulos, N. - Ondráček, Jakub - Zíková, Naděžda - Niemi, J.V. - Manninen, H.E. - Green, D.C. - Tremper, A.H. - Norman, M. - Vratolis, S. - Eleftheriadis, K. - Gomez-Moreno, F.J. - Alonso-Blanco, E. - Gerwig, H. - Wiedensohler, A.
Phenomenology of ultrafine particle concentrations and size distribution across urban Europe.
Environment International. Roč. 172, FEB 2023 (2023), č. článku 107744. ISSN 0160-4120. E-ISSN 1873-6750
GRANT EU: European Commission(XE) 101036245 - RI-URBANS
Grant ostatní: SMSI(ES) PID2019- 108990RB-I00; GC(ES) AGAUR 2021 SGR00447
Institucionální podpora: RVO:67985858
Klíčová slova: air quality * aerosols * particle number concentrations * nanoparticles
Obor OECD: Environmental sciences (social aspects to be 5.7)
Impakt faktor: 11.8, rok: 2022
Způsob publikování: Open access
https://www.sciencedirect.com/science/article/pii/S016041202300017X?via%3Dihub

The 2017-2019 hourly particle number size distributions (PNSD) from 26 sites in Europe and 1 in the US were evaluated focusing on 16 urban background (UB) and 6 traffic (TR) sites in the framework of Research In-frastructures services reinforcing air quality monitoring capacities in European URBAN & industrial areaS (RI-URBANS) project. The main objective was to describe the phenomenology of urban ultrafine particles (UFP) in Europe with a significant air quality focus.The varying lower size detection limits made it difficult to compare PN concentrations (PNC), particularly PN10-25, from different cities. PNCs follow a TR > UB > Suburban (SUB) order. PNC and Black Carbon (BC) progressively increase from Northern Europe to Southern Europe and from Western to Eastern Europe. At the UB sites, typical traffic rush hour PNC peaks are evident, many also showing midday-morning PNC peaks anticorrelated with BC. These peaks result from increased PN10-25, suggesting significant PNC contributions from nucleation, fumigation and shipping.Site types to be identified by daily and seasonal PNC and BC patterns are: (i) PNC mainly driven by traffic emissions, with marked correlations with BC on different time scales, (ii) marked midday/morning PNC peaks and a seasonal anti-correlation with PNC/BC, (iii) both traffic peaks and midday peaks without marked seasonal patterns. Groups (ii) and (iii) included cities with high insolation.PNC, especially PN25-800, was positively correlated with BC, NO2, CO and PM for several sites. The variable correlation of PNSD with different urban pollutants demonstrates that these do not reflect the variability of UFP in urban environments. Specific monitoring of PNSD is needed if nanoparticles and their associated health im-pacts are to be assessed. Implementation of the CEN-ACTRIS recommendations for PNSD measurements would provide comparable measurements, and measurements of <10 nm PNC are needed for full evaluation of the health effects of this size fraction.
Trvalý link: https://hdl.handle.net/11104/0342733