The effect of plant use on the reduction of volatile organic compounds for environmentalimprovement

This study aims at examining the reduction of indoor air contaminants by plants placed in an indoor space.Field measurements were performed using Aglaonema brevispathum, which were verified as air-purifying plants by NASA.Two conditions for the amount of plant was used in two separate rooms whose dimensions are identical. The concentration of Volatile Organic Compounds(VOCs) was monitored three hours after the plants were placed and three days after the plants were placed.The variations of concentration of Benzene, Toluene, Etylbenzene, Xylene, Stylene, TVOC and Formaldehyde, as well as Formaldehyde, which are all known as the major elements of Volatile Organic Compounds were monitored. The amount of reduction in concentration of Toluene and Formaldehyde was monitored 3 hours and 3 days after the plants were placed in the space. The more plants were used, the more a reduction of indoor air contaminants occurred. The effect of reducing the concentration of air contaminants increased when the amount of plants increased. The concentration of Toluenewas reduced by 45.6?g/m3 when 10 percent of the modelspace was occupied by Aglaonema brevispathum.