High-Resolution Monitoring of Urban Particle Number Concentrations in Southern Warsaw at Rooftop Level: Focus on Nanoparticles over 200 Days in 2025

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dc.contributor.authorKamocki, Szymon
dc.contributor.authorJankowski, Tomasz
dc.contributor.authorSobiech, Piotr
dc.contributor.organizationCentral Institute for Labour Protection - National Research Institute
dc.date.accessioned2026-08-11T13:21:21Z
dc.date.available2026-08-11T13:21:21Z
dc.date.issued2026-04-28
dc.date.submitted2026-08-10T14:50:28Zen
dc.description.abstractNanoparticles (interchangeably called ultrafine particles) constitute one of the growing risks encountered in everyday life. Both short- and long-term exposure to them, as well as to particulate matter in general, may pose serious health risks. In this study, we focus on monitoring of particle concentration in urban air for 200 days, with special attention to nanoparticles. The overall data coverage exceeded 80%, reaching over 97% in three selected months. Measurements were carried out at 25.5 m height in southern Warsaw, in close vicinity to residential blocks with apartments also at the same level. Data were collected from January to first half of August 2025 using a Grimm MINI-WRAS portable wide-range aerosol spectrometer and a thermo-hygro-barometer. Over the 8-month period, significant variations between months and days in both nanoparticle and all particulate matter concentrations were observed. Winter months were almost four times more polluted with particles (both nanoparticles and those above 100 nm) than spring and summer periods. Although nanoparticle concentration in colder months was higher, the percentage of nanoparticles was lower. An important aspect of these investigations was comparing the obtained results with publicly available air pollution data from urban air quality monitoring stations, which represent ground-level measurements. At rooftop altitude, PM2.5/PM10 ratios were significantly higher than those measured at ground level.en
dc.description.sponsorshipThis task was completed on the basis of results of research carried out within the scope of the 6th stage of the National Programme “Governmental Programme for Improvement of Safety and Working Conditions”, funded by state services of the Ministry of Family, Labour and Social Policy. Task no.: 3.ZS.06, entitled: Analysis of the content of nano fractions in aerosols of the work environment and the external environment. The Central Institute for Labour Protection—National Research Institute is the Programme’s main co-ordinator. The authors declare that no funds, grants or other support were received during preparation of this manuscript.
dc.identifier.citationKamocki, S., Jankowski, T., & Sobiech, P. (2026). High-Resolution Monitoring of Urban Particle Number Concentrations in Southern Warsaw at Rooftop Level: Focus on Nanoparticles over 200 Days in 2025. Atmosphere, 17(5), 448. https://doi.org/10.3390/atmos17050448
dc.identifier.doi10.3390/atmos17050448
dc.identifier.issn2073-4433
dc.identifier.urihttps://open.icm.edu.pl/handle/123456789/27018
dc.language.isoen
dc.publisherMDPI AG
dc.relation.ispartofAtmosphere
dc.relation.ispartofseries17; 5
dc.rightsUznanie autorstwa 4.0 Międzynarodoween
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceAtmosphere
dc.subjectaerosolen
dc.subjectairborne particulate matteren
dc.subjectambient airen
dc.subjecturban nanoparticlesen
dc.subjecthigh resolution monitoringen
dc.subjectvertical particle distributionen
dc.titleHigh-Resolution Monitoring of Urban Particle Number Concentrations in Southern Warsaw at Rooftop Level: Focus on Nanoparticles over 200 Days in 2025en
dc.typeArticle
dc.type.versionVersion of Record
person.identifier.orcidKamocki, Szymon [0009-0004-8782-5052]
person.identifier.orcidJankowski, Tomasz [0000-0003-3620-9407]
person.identifier.orcidSobiech, Piotr [0000-0002-6929-1374]
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