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An insight into recent PM1 aerosol light scattering properties and particle number concentration variabilities at the suburban site ATOLL in Northern France
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SYSNO ASEP 0603288 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title An insight into recent PM1 aerosol light scattering properties and particle number concentration variabilities at the suburban site ATOLL in Northern France Author(s) Suchánková, Lenka (UEK-B) RID, SAI, ORCID
Crummeyrolle, S. (FR)
Bourrianne, E. (FR)
Prokeš, Roman (UEK-B) RID, SAI, ORCID
Holoubek, Ivan (UEK-B) SAI, ORCID, RID
Ždímal, V. (CZ)
Chiapello, I. (FR)Article number 178190 Source Title Science of the Total Environment. - : Elsevier - ISSN 0048-9697
Roč. 959, JAN (2025)Number of pages 15 s. Language eng - English Country NL - Netherlands Keywords Optical properties ; Ultrafine particles ; Urban environment ; Temporal variability ; Air quality Subject RIV DG - Athmosphere Sciences, Meteorology OECD category Meteorology and atmospheric sciences R&D Projects EH22_008/0004635 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2023048 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2023030 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEK-B - RVO:86652079 EID SCOPUS 85213255965 DOI https://doi.org/10.1016/j.scitotenv.2024.178190 Annotation 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. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2026 Electronic address https://www.sciencedirect.com/science/article/pii/S0048969724083487?via%3Dihub
Number of the records: 1