. AbstractPurpose: There have been speculations as to whether environmental friendly buildings are always healthy. Using Life Cycle Assessment (LCA) methodology, this study investigates lifecycle relationship between building sustainability and its environmental health impacts Methodology: In order to achieve this, a block of classroom was modelled with the aid of Revit software, and its lifecycle Global Warming Potential (GWP) and human health impacts were analysed using Green Building Studio and Athena Impact Estimator tools. Sensitivity analyses of the block of classrooms were then carried out by varying the building materials and energy use pattern of the original typology. The lifecycle assessment was performed for seven alternative typologies that were achieved through variation in the building materials and energy use patterns.Findings: For all the eight building typologies, the study shows a direct relationship between global warming potentials and human health impacts. This confirms that the more sustainable a building, the less its tendency for having negative health effects on building operatives, occupants and the wider environment. Again, the more green a building in terms of its materials and energy use pattern, the healthier the building becomes. Limitations:The human health impacts was evaluated by measuring amount of particulate matter (PM2.5) produced by the buildings while environmental impact was evaluated by measuring global warming (KgCO2) potentials of the buildings throughout its lifecycle. The study has been based on the impacts of building materials and energy use patterns over the entire lifecycle of the buildings and materials used for construction.Originality/Value: The study established a positive relationship between global warming potential of building and its human health impacts. Thus, all arguments relating to the relationship between building sustainability and health are laid to rest by the paper.

It has been hypothesized that objective assessment for building acoustic conditions only may not always be representative of the users' perception in occupied indoor spaces. This study objectively and subjectively examined indoor acoustic condition in rooms within students' hostels in Obafemi Awolowo University, Nigeria. The objective assessment considered the physical measurement of sound pressure level in the rooms in relation to the rooms' physical characteristics like window to external wall area and window to floor area ratios. The subjective assessment considered the occupants' perception of the acoustic condition in the rooms in relation to their personal characteristics like age, gender, body mass index, metabolic rate, and body skin area. The sound pressure level was measured in each of the randomly selected 44 rooms at 15 minute intervals between 7 hours and 19 hours daily through a period of eight weeks. The measurement was done with High Accuracy Digital Sound Noise Level Data Loggers placed at work plane at the centre of the rooms. The geometry of the rooms was documented through physical measurements. All the occupants of the selected rooms as well as the two adjoining rooms, amounting to 696 respondents, were purposively selected to fill a questionnaire regarding activities carried out in the rooms, the frequency of fenestration opening, the personal characteristics of the occupants and the rooms' occupancy ratio. This study established a strong correlation between the objective and subjective assessments of the acoustic condition in the spaces. Moreover, out of all the occupants' personal characteristics considered, it was the age that has a relationship with the occupants' perception of the acoustic condition that is closest to significant level.The relationship between their perception and measured sound pressure level was slightly more pronounced among the male gender than the female with correlation coefficients of 0.115 and 0.096 respectively. This study concluded that none of

Social studies is a discipline that deals with social change and ensures that meaningfully interaction of the recipients with their physical and social environments is attained. It engenders sound education of the citizens, as well as inculcates a sense of social consciousness and social responsibility. Social studies a study that can help an individual to understand his environment, find out the problems of his environment as well as solving existing social problems. It is a study that inculcates the value of honesty, cooperation, and the needs of the nation, as well as the desirable skills to solve environmental problem. It is against this background that mass failure of students on the subject has resulted to several reactions by members of the public. Could child abuse be the remote cause to low academic achievement of students in social studies?

No abstract