Theoretical Analysis of Trees to Aerosol Particles Purification

Trees play a important role in capture aerosol particle. But in the environmental assessment (EIA), currently we have not yet to see how to quantify the positive role of plants to remove particles from air. In present paper, the basic principles of aerosol mechanics are used to study semi-quantitatively the influence of cultivation of different species on capture particle. The results show that simply from the perspective of purifying aerosol particles, more branches and more leaves and small- diameter trees should be planted closely, such as shrubs.