Potential to reduce the concentrations of short-lived climate pollutants in traffic environments: A case study in a medium-sized city in Brazil

•Short-lived climate pollutants were measured at several sites in a Brazilian city.•Black carbon, NOx and particle number correlated with traffic rate in the street canyon.•PM2.5 and O3 were tied to regional contributions and showed little spatial variability.•Large potential to decrease traffic-rel...

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Bibliographic Details
Published in:Transportation research. Part D, Transport and environment Transport and environment, 2019-04, Vol.69, p.51-65
Main Authors: Krecl, Patricia, Targino, Admir Créso, Ketzel, Matthias, Cipoli, Yago Alonso, Charres, Isabella
Format: Article
Language:English
Subjects:
Black carbon
Heavy-duty diesel vehicles
Nitrogen oxides
Particle number concentration
Short-lived climate forcers
Street canyons
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Summary:•Short-lived climate pollutants were measured at several sites in a Brazilian city.•Black carbon, NOx and particle number correlated with traffic rate in the street canyon.•PM2.5 and O3 were tied to regional contributions and showed little spatial variability.•Large potential to decrease traffic-related pollutants in the urban core.•Reduction of PM2.5 and O3 might require state, national or transboundary agreements. Understanding the spatio-temporal variation of short lived climate pollutants (SLCP) over cities is critical to protect public health and mitigate climate change. There is a lack of knowledge about the distribution of SLCP in South America, mainly in medium-sized cities (
ISSN:1361-9209
1879-2340
DOI:10.1016/j.trd.2019.01.032