scholarly journals Effects of Indoor Plants on the Physical Environment with Respect to Distance and Green Coverage Ratio

2019 ◽  
Vol 11 (13) ◽  
pp. 3679 ◽  
Author(s):  
Ke-Tsung Han
Keyword(s):  
Air Quality ◽  
Indoor Air ◽  
Physical Environment ◽  
Daily Living ◽  
Coverage Ratio ◽  
Indoor Plants ◽  
Co2 Level ◽  
Randomized Control ◽  
Psychological Perceptions ◽  
Level 2

Few studies have conducted experiments in daily living environments to examine the effects of indoor plants on objective aspects of the physical environment. This study examined the effects of plant distance and green coverage ratio on the objective physical environment and subjective psychological perceptions, along with the correlation between the objective physical environment and subjective psychological perceptions regarding indoor plants. A randomized control trial of plant distance and green coverage ratio was conducted in a room located in the basement of a university building in Taiwan. Aspects of the objective physical environment were measured using air quality detectors. Subjective psychological perceptions were evaluated based on the questionnaire responses of 60 undergraduates. The results revealed that (1) regardless of number of plants, the closer the plant, the higher the CO2 level; (2) more indoor plants resulted in higher CO2 and humidity and lower PM2.5, PM10, and temperature; and (3) the lower the levels of fine and suspended particles in the air were, the stronger were the feelings of preference, naturalness of the environment, and pleasure in participants. Indoor plants that can regulate indoor air quality and microclimates without consuming energy warrant greater attention and wider application.

scholarly journals The effect of the physical learning environment on students’ health, enjoyment and learning

2017 ◽  
Vol 7 (1) ◽  
pp. 47-55
Author(s):  
Che Nidzam Che Ahmad ◽  
Nurul Jannah Amirul
Keyword(s):  
Air Quality ◽  
Learning Environment ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Classroom Environment ◽  
Physical Environment ◽  
Classroom Learning Environment ◽  
Science Students ◽  
Physical Learning Environment ◽  
High Level

This study was conducted to analyze the suitability of the physical classroom learning environment and its effect on students’ health, enjoyment and learning. The participants of this study were 400 form four science students from six secondary schools in Johor, Malaysia. Students’ perception on physical aspects and its effect were measured using Physical Aspects Classroom Environment Inventory (PACE). The PACE consists of nine constructs. Six constructs which were furniture, facilities, space, lighting, indoor air quality and colour were used to measure the suitability of the physical classroom environment. While three constructs which were health, enjoyment, and learning were used to measure the effects of physical environment on students. The findings revealed that students perceived the suitability of physical environment is at high level for furniture, facilities, and lighting aspects, while moderate level for indoor air quality, space, and colour aspects. Results also showed that students perceived the physical environment have moderate effect on student’s health, enjoyment, and learning. Further analysis indicated that the physical environment have significant impact on students’ health, enjoyment and learning. These results provide valuable feedback to institutions and to educators in setting their learning environment.

scholarly journals ARCHITECTURAL MEASURES FOR FACILITATION OF INDOOR AIR QUALITY IN BUILDINGS

2018 ◽  
Vol 13 (1) ◽  
Author(s):  
Sasa Cvoro
Keyword(s):  
Energy Consumption ◽  
Air Quality ◽  
Indoor Air ◽  
Physical Environment ◽  
Architectural Design ◽  
Total Energy Consumption ◽  
Indoor Space ◽  
Adequate Quality ◽  
Measurable Factors

This Paper focuses on the importance measures for facilitation of air comfort in construction and the possibility of its application in architectural design. Facilitation of adequate comfort in physical environment directly affects health and working abilities of people and significantly increases energy consumption. Between 30% and 40% of the total energy consumption is spent in the process of using the construction fund in order to ensure adequate quality of air, i.e. air comfort of the indoor space. In this Paper special attention is devoted to the analysis of measurable factors of impact on air comfort through objective parameters of air quality and humidity.

Effects of visible greenness, quantity and distance of indoor plants on human perceptions and physical parameters

2020 ◽  
pp. 1420326X2093959
Author(s):  
Ke-Tsung Han
Keyword(s):  
Physical Environment ◽  
Controlled Trial ◽  
Physical Parameters ◽  
Coverage Ratio ◽  
Indoor Plants ◽  
Randomized Controlled ◽  
Volatile Organic ◽  
Human Perceptions ◽  
Experimental Treatments ◽  
Central Taiwan

The main purpose of this study was to examine the influence of visible greenness rate, green coverage ratio and distance from plants on human perceptions and parameters of the physical environment. A secondary purpose was to explore the correlation between parameters of physical environment and human perceptions when indoor plants were present. A randomized controlled trial was conducted. Experimental treatments were administered by placing either three or eight pots of Radermachera hainanensis Merr. in a room. Sixty students of a technology university in central Taiwan were recruited as participants, and their perceptions were collected using a questionnaire. Physical parameter data were collected using two air quality detectors. The results indicated the following: when the visible greenness rate was identical, different green coverage ratios and plant–participant distances did not exert different effects on participants' perceptions. Different green coverage ratios and distances from plants exerted differing effects on physical parameters. However, the distance from indoor plants had stronger and more consistent effects on physical parameters than the green coverage ratio. The environmental comfort of the participants increased with the CO2 level, and the lower the level of total volatile organic compound, the higher is the level of surprise.

scholarly journals Evaluation of Indoor Air Quality and Health Related Parameters in Office Buildings with or without Indoor Plants

2011 ◽  
Vol 80 (1) ◽  
pp. 96-102 ◽  
Author(s):  
Ho-Hyun Kim ◽  
Jae-Young Lee ◽  
Ji-Yeon Yang ◽  
Kwang-Jin Kim ◽  
Yong-Jin Lee ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Office Buildings ◽  
Indoor Plants ◽  
Health Related

Studies on an Integrated Energy-Saving System Combining Architectural Energy-Saving Features and Renewable Energy in Taiwan

2011 ◽  
Vol 250-253 ◽  
pp. 3271-3274 ◽  
Author(s):  
Wen Pei Sung ◽  
W. S. Ou ◽  
J. M Chang ◽  
Y.D. Kuan
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Air Quality ◽  
Energy Saving ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Proton Exchange ◽  
Hydrogen Energy ◽  
Total Energy Consumption ◽  
Indoor Plants

Saving energy along with reducing carbon emission is an unavoidable new trend in response to continual global warming. In Taiwan, the energy consumed by commercial buildings and residential houses accounts for about 18% of the total energy consumption with 31% consumed for HVAC (heating, ventilation, and air conditioning) to emit 21 millions of carbon dioxide annually. Hence, in this research, an integrated energy-saving system combining green architecture, recirculation and reuse of water resources, indoor plants to purify indoor air quality, and solar energy and hydrogen energy is proposed for providing HVAC and illumination. The research has accomplished the following: (1) roof-top plants will lower the indoor temperature during summer; (2) utilizing aquatic plants to purify the wastewater for recirculation and reuse will effectively remove BOD and COD from contaminated water; (3) indoor plants are effective in lowering loadings to air conditioners and energy consumption; (4) the solar air conditioner has excellent overall energy saving features; (5) the solar hydrogen generating system and reformed methanol system have been developed applied to develop a 100 W PEMFC (proton exchange membrane fuel cell); and (6) a portable plant cultivation system has been developed to enhance plant growth for removing indoor carbon dioxide so that the building needs not be ventilated much to maintain adequate indoor air quality.

scholarly journals Improving the IAQ for Learning Efficiency with Indoor Plants in University Classrooms in Ajman, United Arab Emirates

Buildings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 289
Author(s):  
Chuloh Jung ◽  
Jihad Awad
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Leaf Area ◽  
United Arab Emirates ◽  
Indoor Air ◽  
Plant Density ◽  
Co2 Concentration ◽  
Subjective Assessment ◽  
Floor Area ◽  
Indoor Plants

The objective of this paper is to investigate the effect of improving indoor air quality with indoor plants. As a methodology, two target classrooms with the same size (120.64 m2) and 32 students per room were selected. Then, 48 areca palm pots (average leaf area of 300 cm2/pot) were placed, and the plant density was 14.68% of the floor area. Subjective assessment for general questions, learning motivation, perceived air quality, and SBS symptoms was conducted at 5 min after the class started and 5 min before the class ended. The results showed that the CO2 concentration by respiration of the students (average of 1873 ppm) exceeded the regulatory standard (1000 ppm), but the students did not recognize the indoor CO2 concentration. The increase in CO2 concentration in the classroom was lower in the case with plant placement (624 ppm) compared with the case without plant placement (about 1205 ppm). It was statistically proven that the CO2 concentration by respiration could be reduced by 50% if the indoor plant leaf area density were maintained at about 14.68% of the floor area. In the case with plant placement, the students perceived the indoor air quality to be 40% fresher and showed a 140% higher acceptability. Moreover, the complaining of SBS symptoms was improved by 108%, and the students’ perception that it was better to focus on learning increased by about 120%. As the awareness of sustainability increases, indoor plants will be more actively placed in the United Arab Emirates. Indoor plants not only provide a visual green effect to improve human comfort but also purify indoor air pollutants.

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