Evaluation of impacts of trees on PM2.5 dispersion in urban streets
作者： Sijia Jin , Jiankang Guo , Stephen Wheeler , Liyan Kan , Shengquan Che
DOI: 10.1016/J.ATMOSENV.2014.10.002
关键词: Pruning 、 Particulates 、 Air pollution 、 Meteorology 、 Canyon 、 Leaf area index 、 Canopy 、 Atmospheric sciences 、 Wind speed 、 Environmental science 、 Population
摘要: Reducing airborne particulate matter (PM), especially PM 2.5 (PM with aerodynamic diameters of 2.5 μm or less), in urban street canyons is critical to the health of central city population. Tree-planting in urban street canyons is a double-edged sword, providing landscape benefits while inevitably resulting in PM 2.5 concentrating at street level, thus showing negative environmental effects. Thereby, it is necessary to quantify the impact of trees on PM 2.5 dispersion and obtain the optimum structure of street trees for minimizing …
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