Real world vehicle fleet emission factors: Seasonal and diurnal variations in traffic related air pollutants

JM Wang, CH Jeong, N Zimmerman, RM Healy… - Atmospheric …, 2018 - Elsevier
Temporal variations of vehicle emissions are affected by various compounding factors in the
real world. The focus of this study is to determine the effects of ambient conditions and post …

Black carbon, particle number concentration and nitrogen oxide emission factors of random in-use vehicles measured with the on-road chasing method

I Ježek, T Katrašnik, D Westerdahl… - … Chemistry and Physics, 2015 - acp.copernicus.org
The chasing method was used in an on-road measurement campaign, and emission factors
(EF) of black carbon (BC), particle number (PN) and nitrogen oxides (NO x) were determined …

[HTML][HTML] Elucidating real-world vehicle emission factors from mobile measurements over a large metropolitan region: a focus on isocyanic acid, hydrogen cyanide, and …

SN Wren, J Liggio, Y Han, K Hayden… - Atmospheric …, 2018 - acp.copernicus.org
A mobile laboratory equipped with state-of-the-art gaseous and particulate instrumentation
was deployed across the Greater Toronto Area (GTA) during two seasons. A high-resolution …

Sensitivity analysis of area-wide, mobile source emission factors to high-emitter vehicles in Los Angeles

M Kelp, T Gould, E Austin, JD Marshall, M Yost… - Atmospheric …, 2020 - Elsevier
The absolute principal component scores (APCS) model was applied to on-road,
background-adjusted measurements of NO x, CO, CO 2, black carbon (BC), and particle …

Real-world emission of particles from vehicles: volatility and the effects of ambient temperature

JM Wang, CH Jeong, N Zimmerman… - Environmental …, 2017 - ACS Publications
A majority of the ultrafine particles observed in real-world conditions are systematically
excluded from many measurements that help to guide regulation of vehicle emissions. To …

Multi-pollutant mobile platform measurements of air pollutants adjacent to a major roadway

EA Riley, L Banks, J Fintzi, TR Gould, K Hartin… - Atmospheric …, 2014 - Elsevier
A mobile monitoring platform developed at the University of Washington Center for Clean Air
Research (CCAR) measured 10 pollutant metrics (10 s measurements at an average speed …

Determination of car on-road black carbon and particle number emission factors and comparison between mobile and stationary measurements

I Ježek, L Drinovec, L Ferrero… - Atmospheric …, 2015 - amt.copernicus.org
We have used two methods for measuring emission factors (EFs) in real driving conditions
on five cars in a controlled environment: the stationary method, where the investigated …

Fleet-based vehicle emission factors using low-cost sensors: Case study in parking garages

B Liu, N Zimmerman - Transportation Research Part D: Transport and …, 2021 - Elsevier
Traditionally, vehicle emissions measurements rely on reference-grade instruments whose
high cost and complexity have limited their deployment in real-world environments. New …

Correlations between short-term mobile monitoring and long-term passive sampler measurements of traffic-related air pollution

EA Riley, LN Schaal, M Sasakura, R Crampton… - Atmospheric …, 2016 - Elsevier
Mobile monitoring has provided a means for broad spatial measurements of air pollutants
that are otherwise impractical to measure with multiple fixed site sampling strategies …

Emission factors of black carbon and co-pollutants from diesel vehicles in Mexico City

M Zavala, LT Molina, TI Yacovitch… - Atmospheric …, 2017 - acp.copernicus.org
Diesel-powered vehicles are intensively used in urban areas for transporting goods and
people but can substantially contribute to high emissions of black carbon (BC), organic …