Sub-23 nm particles dominate non-volatile particle number emissions of road traffic

H Lintusaari, H Kuuluvainen, J Vanhanen… - Environmental …, 2023 - ACS Publications
Ultrafine particles (< 100 nm) in urban air are a serious health hazard not yet fully
understood. Therefore, particle number concentration monitoring was recently included in …

Five-year roadside measurements of ultrafine particles in a major Canadian city

K Sabaliauskas, CH Jeong, X Yao, YS Jun… - Atmospheric …, 2012 - Elsevier
This study reports the diurnal, seasonal and annual variation of ultrafine particles (UFP) in a
large city. Particle number (PN) concentrations were measured in Toronto, Canada on a …

[HTML][HTML] Rapid physical and chemical transformation of traffic-related atmospheric particles near a highway

CH Jeong, GJ Evans, RM Healy, P Jadidian… - Atmospheric Pollution …, 2015 - Elsevier
The health of a substantial portion of urban populations is potentially being impacted by
exposure to traffic–related atmospheric pollutants. To better understand the rapid physical …

Roadside measurements of fine and ultrafine particles at a major road north of Gothenburg

P Molnár, S Janhäll, M Hallquist - Atmospheric Environment, 2002 - Elsevier
Particle measurements were conducted at a road site 15km north of the city of Gothenburg
for 3 weeks in June 2000. The size distribution between 10 and 368nm was measured …

Size distribution of vehicle emitted primary particles measured in a traffic tunnel

X Li, TR Dallmann, AA May, CO Stanier… - Atmospheric …, 2018 - Elsevier
Total and size-resolved concentrations and emission factors are used to compare fleet-
averaged vehicle emissions in Pittsburgh, PA in 2002 and 2014. Winter-time traffic tunnel …

Measurement report: The influence of traffic and new particle formation on the size distribution of 1–800 nm particles in Helsinki: a street canyon and an urban …

M Okuljar, H Kuuluvainen, J Kontkanen… - Atmospheric …, 2021 - acp.copernicus.org
Most of the anthropogenic air pollution sources are located in urban environments. The
contribution of these sources to the population of atmospheric particles in the urban …

Significant reduction of ultrafine particle emission fluxes to the urban atmosphere during the COVID-19 lockdown

A Straaten, F Meier, D Scherer, S Weber - Science of the Total Environment, 2022 - Elsevier
The worldwide restrictions of social contacts that were implemented in spring 2020 to slow
down infection rates of the SARS-CoV-2 virus resulted in significant modifications in mobility …

Concentration levels and source apportionment of ultrafine particles in road microenvironments

G Argyropoulos, C Samara, D Voutsa, A Kouras… - Atmospheric …, 2016 - Elsevier
A mobile laboratory unit (MOBILAB) with on-board instrumentation (Scanning Mobility
Particle Sizer, SMPS; Ambient NOx analyzer) was used to measure size-resolved particle …

Simultaneous roadside and urban background measurements of submicron aerosol number concentration and size distribution (in the Range 20–800 Nm), along with …

M Chatain, R Alvarez, A Ustache, E Rivière, O Favez… - Atmosphere, 2021 - mdpi.com
The adverse health impact of particles and ultrafine particles (UFP) is proven, highlighting
the need of measuring the particle number concentration (PNC) dominated by UFP. So far …

On the time-averaging of ultrafine particle number size spectra in vehicular plumes

XH Yao, NT Lau, M Fang… - Atmospheric Chemistry and …, 2006 - acp.copernicus.org
Ultrafine vehicular particle (< 100 nm) number size distributions presented in the literature
are mostly averages of long scan-time (~ 30 s or more) spectra mainly due to the non …