Removal Potential of Particulate Matter of 12 Woody Plant Species for Landscape Planting

Abstract

Background and objective: Particulate matter (PM) is one of the serious environmental problems and threatens human health. Plants can clean the air by removing PM from the atmosphere. This study was carried out to investigate the PM removal efficiency of 12 species of woody plants. Methods: Actinidia arguta, Dendropanax morbiferus, Fraxinus rhynchophylla, Parthenocissus tricuspidata, Pittosporum tobira, Rhaphiolepis indica, Rhapis, Salix integra, Salix koreensis, Schisandra chinensis, Viburnum odoratissimum var. awabuki, and Vitis coignetiae were used as plant material. Six 15 cm (D) pots were placed in an acrylic chamber of 800 (D) × 800 (W) × 1000 (H) mm. The LED panel was used as a light source. The reduction of PM10, PM2.5, and PM1 for 300 minutes after the injection of PM was automatically measured. Results: The leaf area and the amount of PM in the chamber showed a negative correlation. 12 species of plants were compared by dividing the plants into 3 groups according to their characteristics: vines, trees, and shrubs and small trees. In the vine plant group, the averages of PM10, PM2.5, and PM1 were 7.917%, 8.796%, and 30.275%, respectively. In the shrubs and small trees group, the average of PM10, PM2.5, and PM1 were 10.142%, 11.133%, and 36.448%, respectively. In the trees group, the average of PM10, PM2.5, and PM1 were 11.475%, 12.892%, and 40.421%, respectively. When the initial concentration was 100%, PM10, PM2.5, and PM1 of Viburnum odoratissimum var. awabuki with the largest leaf area were 5.6%, 6.3%, and 21.0% after 5 hours, respectively, the best results among 12 species of plants. Conclusion:The vine plant group was more effective in removing PM than the other two groups. In the tree groups, the fact that the leaf development was relatively inactive at a plant height of 30 cm was considered to have an effect on the removal of particulate matter.

Growth and Physiological Responses of Four Plant Species to Different Sources of Particulate Matter

“…For plant materials, we selected I. sanguinea, P. multifida, V. coignetiaer, and V. odoratissimum var. awabuki that were proven to have excellent PM reduction capacity in the studies by Kwon et al (2020; in a plastic pot with a diameter of 15 cm using horticultural substrate (Wonjo Mix, Nongkyung, Korea) and grew in a greenhouse, and acclimated in a laboratory environment for 2 weeks.…”

Evaluating the Particulate Matter and Carbon Dioxide Reduction of Four Broad-leaved Evergreen Plants

“…Numerous studies have demonstrated their ability to accumulate particulate matter (PM) on their leaves and wax surfaces (Liu et al, 2022;Panda et al, 2018). However, the extent of PM accumulation is influenced by various factors, including plant species, PM types, and environmental conditions (Bui et al, 2022b;Kwon et al, 2020;Räsänen et al, 2013). Plants with high leaf surface area-roughness achieve greater PM reduction than those with lower values (Popek et al, 2022).…”

The importance of plant growth-promoting rhizobacteria to increase air pollution tolerance index (APTI) in the plants of green belt to control dust hazards

“…A few plants show tolerance to a particular air pollutant, while others have high mortality rates and are therefore sensitive (Nadgoŕska-Socha et al, 2017). Tolerant species are suitable for planting, while sensitive species can be used as both bioindicators and biomonitors to provide quantitative and qualitative information, respectively, about the surrounding environment (Priyanka and Dibyendu, 2009;Trivedy and Goel, 2010;Kwon et al, 2020).…”