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Particle lung deposited surface area (LDSASUPal/SUP) size distributions in different urban environments and geographical regions: Towards understanding of the PMsub2.5/sub dose-response
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SYSNO ASEP 0581417 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Particle lung deposited surface area (LDSASUPal/SUP) size distributions in different urban environments and geographical regions: Towards understanding of the PMsub2.5/sub dose-response Author(s) Lepistö, T. (FI)
Lintusaari, H. (FI)
Oudin, A. (SE)
Barreira, L.M.F. (FI)
Niemi, J. (FI)
Karjalainen, P. (FI)
Salo, L. (FI)
Silvonen, V. (FI)
Markkula, L. (FI)
Hoivala, J. (FI)
Marjanen, P. (FI)
Martikainen, J. (FI)
Aurela, M. (FI)
Reyes, F.R. (CL)
Oyola, P. (CL)
Kuuluvainen, H. (FI)
Manninen, H.E. (FI)
Schins, R.P.F. (DE)
Vojtíšek-Lom, M. (CZ)
Ondráček, Jakub (UCHP-M) RID, ORCID, SAI
Topinka, Jan (UEM-P) RID, ORCID
Timonen, H. (FI)
Jalava, P. (FI)
Saarikoski, S. (FI)
Rönkkö, T. (FI)Article number 108224 Source Title Environment International. - : Elsevier - ISSN 0160-4120
Roč. 180, OCT 2023 (2023)Number of pages 16 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords air-pollution ; ultrafine particles ; black carbon ; chemical-composition OECD category Environmental sciences (social aspects to be 5.7) Method of publishing Open access Institutional support UCHP-M - RVO:67985858 ; UEM-P - RVO:68378041 UT WOS 001099869400001 EID SCOPUS 85172305525 DOI 10.1016/j.envint.2023.108224 Annotation Recent studies indicate that monitoring only fine particulate matter (PM2.5) may not be enough to understand and tackle the health risk caused by particulate pollution. Health effects per unit PM2.5 seem to increase in countries with low PM2.5, but also near local pollution sources (e.g., traffic) within cities. The aim of this study is to understand the differences in the characteristics of lung-depositing particles in different geographical regions and urban environments. Particle lung deposited surface area (LDSA(al)) concentrations and size distributions, along with PM2.5, were compared with ambient measurement data from Finland, Germany, Czechia, Chile, and India, covering traffic sites, residential areas, airports, shipping, and industrial sites. In Finland (low PM2.5), LDSAal size distributions depended significantly on the urban environment and were mainly attributable to ultrafine particles (<100 nm). In Central Europe (moderate PM2.5), LDSA(al )was also dependent on the urban environment, but furthermore heavily influenced by the regional aerosol. In Chile and India (high PM2.5), LDSA(al ) was mostly contributed by the regional aerosol despite that the measurements were done at busy traffic sites. The results indicate that the characteristics of lung-depositing particles vary significantly both within cities and between geographical regions. In addition, ratio between LDSA(al )and PM2.5 depended notably on the environment and the country, suggesting that LDSA(al ) exposure per unit PM2.5 may be multiple times higher in areas having low PM2.5 compared to areas with continuously high PM2.5. These findings may partly explain why PM(2.5)seems more toxic near local pollution sources and in areas with low PM(2.5)5. Furthermore, performance of a typical sensor based LDSA(al ) measurement is discussed and a new LDSA(2.5)(al ) notation indicating deposition region and particle size range is introduced. Overall, the study emphasizes the need for country-specific emission mitigation strategies, and the potential of LDSA(al ) concentration as a health-relevant pollution metric. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S016041202300497X?via%3Dihub
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