Abstract:
In one daytime of September, October and November 2019, determinations were made on PM2.5 concentration in road greenbelts withdifferent plant distribution on Wusu Street of Lin’an, Zhejiang province. Simulation was implemented by ENVI-met with open space as control. Theresults revealed that the daily PM2.5 concentrations (8:00-16:00) were higher in the morning and in the afternoon than those at noon. There was asignificant positive correlation between the measured PM2.5 concentration on the pavement and the simulation value (P < 0.01, R2 = 0.944), indicatingENVI-met could simulate PM2.5 concentration. The simulation indicated that the highest PM2.5 concentration located in the drive way of CK. Theexperiment demonstrated that the best plant distribution for drive way division was tree with shrub, and for pavement was tree and grass.