Amount of Air Ions Depending on Indoor Plant Activity (original) (raw)
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Changes in air ions concentration depending on indoor plants activity
Agronomy research, 2016
Lack of negative ions in the air can cause deterioration of the health which is described in many scientific articles. At the same time, an air saturated with negative ions can improve the state of health and provide a comfortable indoor environment. In addition, there are considerable evidences that drowsiness, apathy, headache etc. get even worse indoors, and these health problems may be effectively eliminated with a help of moderate concentrations of negative ions. Literature sources and earlier researches state that plants may be able to produce a variety of air ions, including negative light ions. The most plants emit different types of volatile organic compounds, and the indoor plants can improve the air quality: they effectively remove organic pollution and reduce the number of microorganisms in the air by releasing phytoncides. In this article, the regularity of influence of plants on the number of ions in the room is being proved, basing on a series of experiments performed...
Impact of Microclimate and Indoor Plants on Air Ion Concentration
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference, 2015
Saturation of air ions is essentially important for all living beings, especially for human health. Existing sanitary norms provide that concentration of small ions has to be in range of 400-50000 ions cm-3 and unipolarity coefficient 0.4 ≤ K ≤ 1.0. Many species of indoor plants emit organic volatile compounds and air ions, therefore they could be used for improving the quality of indoor air. The results show that ionization level of indoor air is significantly insufficient and selected species of indoor plants are not able to improve it. They serve rather as supplementary surfaces for ion absorption. Possible interaction between microclimate, ion concentration and indoor plants in different times of the day is analyzed.
Air ionizer and indoor plants interaction impact on ion concentration
The plants emit different types of volatile organic compounds (Bio VOC's) and can improve air quality: they effectively remove organic pollutions and reduce the number of microorganisms in the air by releasing phytoncides. The lack of negative ions in the air can cause deterioration of the health of humans breathing it. At the same time, an air saturated with negative ions can improve the state of health and provide a comfortable environment. In this article, the influence of the plants (Cupressus macrocarpa) on the number of ions is proved, based on a series of experiments performed with applying high-voltage pulses (air ionizer). This work is devoted to the elaboration of the mathematical relationship between the air ions concentration and the factors influencing it. For this purpose an experimental stand was made, consisting of two equal compartments: one contained the plants while another one was used as a control without plants. It was concluded that the plants, in general, are able to stabilize the ion concentration and to reduce its fluctuations. The plants help to increase the concentration of negative ions and to decrease the concentration of positive ones.
Review of the effects of plants on indoor environments
Indoor and Built Environment, 2020
Although well-established technologies can remove certain toxins from indoor environments, methods capable of eliminating all of them do not yet exist. Biological methods, however, which are based on plants and their associated microorganisms, could hold significant promise. To achieve high toxic remediation, utilization of the soil microorganisms in the root zone of the plant is vital. Moreover, evidence suggests that in addition to cleaning the air, plants in indoor environments offer psychological, physiological and cognitive benefits. This paper provides an overview of the effects of plants on indoor air quality on the broader benefits of incorporating vegetation into indoor environments.
Indoor Ecosystem Services: Impacts of Plants on Air Quality
Contemporary Agriculture, 2019
Summary Ecosystem services have been the focus of recent research on ecology, biodiversity and human health. As most of this research has placed emphasis on natural ecosystems, there is a lack of data on the effect of indoor and urban ecosystems on both human health and the quality of human life. One of the most common health issues associated with urban and indoor spaces is the quality of air. Considering that humans spend most of their time indoors, accompanied by a lack of fresh air due to industry growth and environmental degradation, there is an obvious need for a non-invasive and non-obtrusive air purification system. This paper presents the results of the indoor air quality monitoring under non-controlled conditions, i.e. the changes in air quality induced by the common indoor ornamental plant Sansevieria trifasciata ‘Laurentii’. The following air quality parameters were observed: the relative humidity and temperature of air, as well as the concentrations of carbon-dioxide, m...
Native Ornamental Potted Plants for Sustainable Improvement of Indoor Air Quality
International Journal of Applied Agricultural Sciences, 2020
Ornamental potted plant are often proposed as a passive approach for improving indoor air quality (IAQ). Volatile organic compounds (VOCs) enter indoor environments through internal and external sources. Indoor air concentrations of VOCs vary greatly but are generally higher than outdoors. Plants have been promoted as indoor air purifiers for decades, but reports of their effectiveness differ. The aim of this study was to determine the selective of several potted indoor and outdoor species plants which can sustain and improve indoor air quality by using the native species plants. The experimental design was a complete randomised design experiment with four replications and it was conducted at the Horticulture Research Centre laboratory. Different native ornamental potted plants species such as Eugenia sp.; Scindapsus pictus; Schismatoglottis sp.; Tradescantia pallida; Piper porphyrophyllum; Alocasia reginula; Ledebouria socialis; Peperomia sp. and Ledebouria petiolata respectively had a different significant effects on absorption of the VOCs gases. The maximum and significant absorption of potted indoor plants species tested sequently was from Ledebouria socialis; Eugenia sp.; Piper porphyrophyllum; Peperomia sp.; Scindapsus pictus; Tradescantia pallida; Ledebouria petiolata; Alocasia reginula and Schismatoglottis sp. The leaf area, having moderate function of VOCs gas absorption did not drastically reduce the VOCs gas volume. Overall, the data from the laboratory studies illustrate the potential for indoor plants leaves to be used as air purifier and indoor air VOC samplers.
The Impact of Plants on Indoor Air Quality, Energy Use, and Psychological Status of Occupants
2017
Plants may have several impacts, which can be categorized into indoor air quality, energy use, and psychological effects. This thesis presented a comprehensive review of the impact of indoor plants in these categories. Indoor plants can emit a negligible amount of VOCs and microorganisms to the indoors but also have limited ability to remove pollutants. In addition, greenery systems are exterior to the building enclosure, resulting in a reduction of external surface temperature and heat transfer, particularly in certain climates. Interaction with indoor plants can also deliver measurable psychological benefits to people despite the confounding variables and other experimental design issues. In conclusion, indoor plants have limited effect on indoor air quality, external plants have a possible impact on saving energy, and indoor plants can influence psychological status when placed on the level of vision. Plants cannot be treated as a system, and other alternatives can provide promis...
The Impact of Plants on the Reduction of Volatile Organic Compounds in a Small Space
Journal of PHYSIOLOGICAL ANTHROPOLOGY, 2007
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, Pachira aquatica, and Ficus benjamiana, which were verified as air-purifying plants by NASA. Three conditions for the amount of plants and positions were 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, and Xylene (BTEX), 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 reduction in the concentration of Benzene, Toluene, Etylbenzene, Xylene, and Formaldehyde was significantly greater when plants were present. When plants were placed near a window, the reduction of concentration was greater. 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, and when the plants were placed in sunny area. The concentration of Toluene was reduced by 45.6 mg/m 3 when 10% of the model space was occupied by Aglaonema brevispathum.
People spend most of their time indoors, and prolonged exposure to pollution can harm their health. The degradation of indoor air quality (IAQ) has raised serious issues. Botanical biofilters are an exciting solution for lowering indoor air pollution. However, plants cultivated inside under low light intensity (10–50 µ mole PAR m− 2 s− 1) generate CO2 in the indoor atmosphere. Combining C3 and CAM plants may be able to address this problem by lowering CO2 emission levels and enhancing the efficiency of pollution removal by removing the primary indoor air pollutants from actual interior settings, including Carbon dioxide (CO2), formaldehyde (HCHO), particulate matter (PM2.5 and PM10), and total volatile organic compounds (TVOCs). As a result, a successful botanical biofilter made of several plants was researched. Indoor plants can phytoremediate a variety of indoor contaminants. However, just a few studies have demonstrated its efficacy in practical contexts. Due to the harsh winter,...