Forums | HES 健康与环境科学

16 March 2026, 17:30

Speaker: Dr. Bailiang Li

Title: Modelling dry deposition of submicron particulate matter to plants

Date: 2026-03-19

Time: 13:00-14:00 

Room: ES354

Abstract: 

Particulate matter (PM), especially submicron PM, remains a critical threat to public health. While vegetation mitigates this risk by capturing particles and modulating wind speeds to promote deposition, the specific influence of crown-scale factors—such as frontal and lateral porosity and surface area—remains poorly understood. This study utilizes wind tunnel experiments on artificial plants to develop an empirical model quantifying the relationship between these structural parameters, capture efficiency, and dry deposition velocity. The applicability of this model was further validated using a common urban species, littleleaf boxwood (Buxus microphylla). By establishing a framework to evaluate how plant architecture and aerodynamic conditions drive PM removal, these findings offer actionable insights for urban greenery design, enabling planners to optimize vegetation for maximum air filtration and improved urban air quality.

Biography:

Dr Bailiang Li obtained a PhD in Geography at Texas A&M University, USA. His primary research field is aeolian processes. He also has other research interests in air pollution and GIS and remote sensing applications.Peronsal homepage: https://connect.xjtlu.edu.cn/user/bailiangli

Look forward to seeing you!

Liwen Wu