A Study on Reduction of Volatile Organic Compounds in Summer by Various Plants

摘要

The objective of this study is to examine the impact of phytofiltration system on the improvement of indoor air quality.This study conducted the experiment to compare the concentration reduction effects of indoor air pollutants to by Korean native plants and foreign plants. The experiment of reduction effect of indoor air pollutants was conducted to Korean native plants such as Fatsia japonica Decne. et Planch. and Ardisia pusilla DC, and foreign plants such as Aglaonema and Benzamine rubber tree. The experiment was conducted in summer, and the four kinds of plants were placed in doors in the same conditions. Field measurements were performed in models where the plants were placed or not. The dimensions of the two models were equal. The concentrations of benzene, toluene, ethylbezene, xylene and formaldehyde were monitored, since they were known as the most toxic materials. Moreover, the concentration of volatile organic compounds (VOCs) was monitored three hours and three days after the plants were placed. This study grasped, compared and assessed the VOCs reduction effect of two kinds of foreign plants and two kinds of Korean native plants. The findings are as follows: ( 1 ) in all experiments, the room with plants is greater in VOCs reduction effect than that without plants, and for most VOCs materials, the reduction effect of foreign plants is more excellent than Korean native ones; (2) in the planting and growing volume experiment, the best effect occurs when Benzamine rubber tree covers 10% of the experiment room space, especially, formaldehyde is reduced the most when benzamine rubber tree is placed; ( 3 ) in the experiment of plating and growing placement, the best effect occurs when Aglaonema is placed at sunny spot, especially, toluene reduction capability is the best.