Abstract
The environmental quality (IEQ) in a building is an important element to perceive the good health and comfort level for the building occupants. However, each building contributes different environmental quality results towards the indoor spaces and the occupants. Learning environment is one of the spaces that need attention as it is related to student’s well being as well as their learning performance. Existing knowledge on IEQ is still limited concerning the desirable levels of air quality, maintenance, and other factors affecting IEQ in Malaysian educational establishment. Therefore, the study of indoor environment quality in buildings has been carried out in educational building as it acts as important place in learning process. The methodologies used to conduct this research are divided into two methods, which are classroom measurement normal condition and classroom intervention setting. This is done in order to compare and monitor the improvement of environment in the classroom. This research focuses on the comparison of IEQ in different classroom environment setting and the student satisfaction level in their normal classroom environment. Measurement of temperature (°C), relative humidity, carbon dioxide (CO 2 ), Volatile Organic Compound (VOC), dust particles (PM10), lighting (lux), and noise (decibel) in the classroom were collected and questionnaires were distributed among the students. This research found that most of the elements in the classroom was incompliance with the standard threshold limit value. The level of VOC in the classroom was noted to be significantly high (11.7ppm) compared to the standard threshold limit. An intervention on the normal condition classroom was set up with selected plant placed in the classroom. Results show a tremendous reduction in the percentage of relative humidity, level of TVOC, as well as CO 2 .
Highlights
There are many researchers found that Indoor environmental quality (IEQ) may affects peoples performance
According to National Institute of Occupational Safety & Health, Indoor environmental quality (IEQ) is defined as the buildings environment quality which related to health and wellbeing of those who occupy space in it (NIOSH, 2013)
This is because each building will have different environmental quality that will be perceived by the occupants that would relate to the types of activities carried out in indoor spaces of the building i.e., classroom, laboratories and others
Summary
There are many researchers found that IEQ may affects peoples performance. This is proven by the study of (Fisk, 2000; Mendell et al, 2002) which explained that poor indoor environments could affect the student learning process in school. According to National Institute of Occupational Safety & Health, Indoor environmental quality (IEQ) is defined as the buildings environment quality which related to health and wellbeing of those who occupy space in it (NIOSH, 2013). There are many factors of IEQ that may affect to the student This is because each building will have different environmental quality that will be perceived by the occupants that would relate to the types of activities carried out in indoor spaces of the building i.e., classroom, laboratories and others. Since Malaysia’s climate is classified as 3 equatorial, being hot and humid throughout the year, this might result in dissatisfaction of the building occupants regarding to IEQ issues of building, with particular emphasis on thermal comfort
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