@Article{cmes.2022.020427,
AUTHOR = {Xiaoxuan Zhu, Xueyan Wang, Li Lei, Yuting Zhao},
TITLE = {Pollution Dispersion in Urban Street Canyons with Green Belts},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {132},
YEAR = {2022},
NUMBER = {2},
PAGES = {661--679},
URL = {http://www.techscience.com/CMES/v132n2/48312},
ISSN = {1526-1506},
ABSTRACT = {In this study, numerical simulations were used to explore the effects of roadside green belt, urban street spatial
layout, and wind speed on vehicle exhaust emission diffusion in street canyon. The diffusion of different sized
particles in the street canyon and the influence of wind speed were investigated. The individual daily average
pollutant intake was used to evaluate the exposure level in a street canyon microenvironment. The central and
leeward green belts of the road were the most conducive to the diffusion of pollutants, while the positioning of the
green belts both sides of a road was least conducive to the diffusion of pollutants. Pollutant levels increased with
increasing canopy height, canopy width, and decreasing tree spacing, with optimal values of 12 m, 7 m, and 0.4 H,
respectively. This provides protection from pollution for low-rise residents and pedestrians. The results presented
here can be used to improve the air quality of the street microenvironment and provide a basis for the renovation
of old street buildings.},
DOI = {10.32604/cmes.2022.020427}
}