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Variability of Particle Number, Black Carbon, and PM10, PM2.5, and PM1Levels and Speciation: Influence of Road Traffic Emissions on Urban Air Quality
Open accessAbstract
Measurements of particle number concentration (N), black carbon (BC), and PM 10 , PM 2.5 , and PM 1 levels and speciation were carried out at an urban background monitoring site in Barcelona. Daily variability of all aerosol monitoring parameters was highly influenced by road traffic emissions and meteorology. The levels of N, BC, PM X , CO, NO, and NO 2 increased during traffic rush hours, reflecting exhaust, and non-exhaust traffic emissions and then decreased by the effect of breezes and the reduction of traffic intensity. PM 2.5–10 levels did not decrease during the day as a result of dust resuspension by traffic and wind. N showed a second peak, registered in the afternoon and parallel to O 3 levels and solar radiation intensity, that may be attributed to photochemical nucleation of precursor gases. An increasing trend was observed for PM 1 levels from 1999 to 2006, related to the increase in the traffic flow and the diesel fleet in Barcelona. PM composition was highly influenced by road traffic emissions, with exhaust emissions being an important source of PM 1 and dust resuspension processes of PM 2.5–10 , respectively.
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“Other authors also tried to analyse these two fractions (PM1 and PM10) of particulate matter in the urban environment75–78. However, the number of analytical methods used was smaller.”
From Source attribution of carbonaceous fraction of particulate matter in the urban atmosphere based on chemical and carbon isotope composition (2024) · cites this paper as [76]
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Metadata
- Authors
- Pérez, N., Pey, J., Cusack, M., Reche, C., Querol, X., Alastuey, A., & Viana, M.
- Affiliations
- Consejo Superior de Investigaciones Científicas (ES)
- Venue
- Aerosol Science and Technology
- Publisher
- Informa UK Limited
- Published
- 2010-06-04
- Volume
- 44
- Issue
- 7
- Pages
- 487-499
- ISSN
- 0278-6826 (ISSN-L)
- 1521-7388
- OpenAlex
- W1982732147
- Cited by
- 245
- References
- 30
- Citations by year
- 2026: 5 · 2025: 8 · 2024: 12 · 2023: 11 · 2022: 18 · 2021: 18 · 2020: 24 · 2019: 23 · 2018: 21 · 2017: 21 · 2016: 14 · 2015: 14 · 2014: 17 · 2013: 14 · 2012: 13
- FWCI
- 8.28
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Aerosol Science and Technology (publishedVersion)
- Funders
- National Aeronautics and Space Administration
- Ministerio de Ciencia e Innovación (CSD 2007-00067, GRACCIE-CSD2007-00067, CGL2007-62505/CLI)
- National and Kapodistrian University of Athens
- National Oceanic and Atmospheric Administration
- Goddard Space Flight Center
- Topics
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Atmospheric chemistry and aerosols
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
- Physical Sciences › Engineering › Automotive Engineering › Vehicle emissions and performance
- Keywords
- particle number concentration, black carbon, PM10, PM2.5, PM1, aerosol chemical speciation, road traffic emissions, urban air quality, daily variability, meteorological factors, dust resuspension, diesel vehicles, vehicle emissions, non-exhaust emissions, Barcelona
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