0603288 - ÚVGZ 2025 RIV NL eng J - Článek v odborném periodiku
Suchánková, Lenka - Crummeyrolle, S. - Bourrianne, E. - Prokeš, Roman - Holoubek, Ivan - Ždímal, V. - Chiapello, I.
An insight into recent PM1 aerosol light scattering properties and particle number concentration variabilities at the suburban site ATOLL in Northern France.
Science of the Total Environment. Roč. 959, JAN (2025), č. článku 178190. ISSN 0048-9697. E-ISSN 1879-1026
Grant CEP: GA MŠMT(CZ) EH22_008/0004635; GA MŠMT LM2023048; GA MŠMT(CZ) LM2023030
Institucionální podpora: RVO:86652079
Klíčová slova: Optical properties * Ultrafine particles * Urban environment * Temporal variability * Air quality
Obor OECD: Meteorology and atmospheric sciences
Impakt faktor: 8.2, rok: 2023 ; AIS: 1.493, rok: 2023
Způsob publikování: Open access
Web výsledku:
https://www.sciencedirect.com/science/article/pii/S0048969724083487?via%3DihubDOI: https://doi.org/10.1016/j.scitotenv.2024.178190

Aerosol particles in the PM1 fraction considerably influence the climate-related effects of aerosols and impact human health despite representing very variable fractions of the total aerosol mass concentration. Aerosol optical measurement techniques (aerosol light scattering) may not be sufficiently effective for detecting all particles in the PM1 fraction, particularly regarding number concentration. The present study investigates temporal variations of aerosol light scattering properties and particle number concentration (PNC) at different size modes in the PM1 fraction at the atmospheric site ATOLL (The Atmospheric Observations in Lille), Northern France from January 2018 to February 2023. The total scattering coefficient σsp decreased annually by 6 % and 8 % at 525 and 635 nm, respectively. Maximum annual changes occur in winter and summer seasons with a decrease above 10 % per year. Although the backscattering coefficient (σbsp) at 525 nm significantly decreased in winter, this did not result in a significant overall decline over time. Despite a decrease in aerosol light scattering, PNC exhibited a notable annual increase in concentration of N20-30 nm and N30-60 nm, which led to an increase in the total N20-800nm size range. N20-30nm increased by 10 % annually, with the highest increase by 37 % in spring. Both traffic and photooxidative processes influenced PNCs, underscoring the need for a more comprehensive investigation of the detailed particle number size distribution to assess air quality and the health effects of increased ultrafine PNC at urban/suburban sites in Europe.
Trvalý link: https://hdl.handle.net/11104/0360497


 
Vědecká data v ASEP:
Dataset of aerosol light scattering properties, particle number size distribution and meteorological parameters measured at ATOLL atmospheric station in Villeneuve d´Ascq, France, from 2018 to 2023.