Particulate Matter Removal Ability of Ten Evergreen Trees Planted in Korea Urban Greening

Broad-leaved evergreen trees create urban forests for mitigation of climate warming and adsorption particulate matter (PM). This study was performed to identify the species suitable greening by examining capacity in areas Korea, points elemental composition PM adsorbed tree. Leaf sampling carried out four times (period seven months from October 2017 May 2018) used after drying 28 37 days). Particulate (PM) classified measured according size PM2.5 (0.2–2.5 ?m), PM10 (2.5–10 PM100 (10–100 ?m). The total amount on leaf surface highest Pinus densiflora (24.6 ?g?cm?2), followed Quercus salicina (47.4 ?g?cm?2). P. is 4.0% PM2.5, 39.5% 56.5% PM100, while those Q. are at 25.7% 27.4% 46.9% PM100. When calculated LAI, that most densiflora, salicina, wax layer, then densiflora. As a result this study, per unit area leaves, showed simpler pattern. hardwoods had high rate PM2.5. ratio ultra-fine broad-leaved greater than coniferous trees. Therefore, evergreens such as considered very adsorbing city. has been shown be through pores leaves trees, indicating plant plays an important role alleviating atmosphere. analyzing components accumulated scanning electron microscopy (SEM)/ energy dispersive x-ray spectroscopy (EDXS) analysis, it composed O, C, Si, N, found mainly generated human activities around road. results provide basic data regarding selection can effectively remove aerial PM. It also highlights importance plants managing pollution during winter provides insights into planning additional green infrastructure improve air quality.