Szczegóły publikacji
Opis bibliograficzny
Assessing urban air quality in the context of strict traffic restrictions: particulate matter concentrations, chemical composition and sources / V. Martins, G. Batalha, F. Garcia, C. Gonçalves, F. Lucarelli, C. A. Alves, L. SAMEK, S. M. Almeida // Environmental Pollution ; ISSN 0269-7491 . — 2026 — vol. 400 art. no. 128199, s. 1–13. — Bibliogr. s. 11–13, Abstr. — Publikacja dostępna online od: 2026-04-29
Autorzy (8)
- Martins Vânia
- Batalha G.
- Garcia F.
- Gonçalves C.
- Lucarelli F.
- Alves C. A.
- AGHSamek Lucyna
- Almeida Susana Marta
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 167507 |
|---|---|
| Data dodania do BaDAP | 2026-05-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.envpol.2026.128199 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Environmental Pollution |
Abstract
Vehicle emissions are recognised as one of the primary contributors to urban air pollution. This study investigates the effects of strict traffic restrictions and reduced industrial activity on air quality in Lisbon (Portugal) during 2020-2021. Variations in particulate matter (PM10) mass concentrations, chemical composition, and source contributions were analysed under pre- and restriction periods. Daily mean PM10 concentrations decreased by 32% during the restriction period. Chemical analysis included equivalent black carbon from fossil fuel combustion and biomass burning, water-soluble ions, and major and trace elements. Although anthropogenic emissions strongly influenced PM10 mass concentrations and their chemical composition, meteorological and seasonal factors also played a significant role. Positive Matrix Factorisation analysis identified six PM10 sources: industry, biomass burning, traffic, secondary inorganic compounds, soil, and sea salt. Traffic was the dominant source during the non-restriction period (37%), whereas sea salt became the main contributor during the restriction period (27%). This study provides novel insights into the combined effects of traffic restrictions and meteorological variability on PM10 sources in a coastal urban environment, highlighting the importance of reducing traffic-related emissions to improve urban air quality.
