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The introduction of mobile telecommunication services in Nigeria led to the development of base transceiver stations (BTS) across the country. Inadequate power supply from the national grid has led to massive use of diesel-fueled back-up generators (BUGs). The purpose of this paper is to attempt to quantify and inform relevant stakeholders about air quality implications of BTS BUGs.

Seven major telecommunication network operators were identified. Emission factor approach was used to estimate the quantity of important air pollutants such as NO_x, CO, SO₂, PM₁₀, PM_2.5, PAH and TVOC that are emitted from the use of the BUGs based on fuel consumption rate and generators’ capacity. Fuel-based emission inventory and emission factor from the United States Environmental Protection Agency AP-42 and National Pollution Inventory were used to estimate pollutants emission from diesel-powered generators used in the BTS sites and amount of diesel consumed. Land distribution and per capita dose of the estimated pollutants load were calculated.

The study showed that the deployment of BUGs will lead to increase emissions of these air pollutants. The states that are most affected are Lagos, Kano and Oyo, Katsina and Akwa Ibom states with respective total air pollutants contribution of 9,539.61, 9,445.34, 8,276.46, 7,805.14 and 7,220.70 tonnes/yr.

This study has estimated pollutant emissions from the use of diesel-fueled BUGs in mobile telecommunications BTS sites in Nigeria. The data obtained could assist in policy making.

This paper is based on users’ satisfaction with housing infrastructure as a derivative of their participation in evolving the facilities from inception. The paper aims to examine optimal performance of infrastructural facilities with a view to determine the satisfaction of users in the study area.

This study reports on a cross-sectional doctoral research study on 304 household heads in the transitional and peripheral zones of Akure, Nigeria. The infrastructure studied were water supply, electricity supply, roads, drainage, waste management and security. A structured questionnaire, focus group discussions and physical observations were used. The data were analyzed using descriptive statistics, mean satisfaction scoring and categorical regression analysis.

Respondents found the infrastructural facilities in their communities to be unsatisfactory; they also indicated low levels of participation in the provision of infrastructure. Residents were most satisfied with waste management and least satisfied with water supply. The results showed a significant relationship between users’ participation and satisfaction with housing infrastructure.

The findings imply that giving adequate attention to users’ involvement in the provision process of infrastructural projects can enhance their satisfaction with infrastructure.

The study highlights the benefits of involving users in the process of providing housing infrastructure, establishing a positive relation with their satisfaction.

This study was conducted to investigate the impact of indoor environmental quality (IEQ) and internal design on the performance of students in university dormitories in Tehran and North Cyprus.

Using a survey questionnaire, 298 students living in student dormitories in Tehran and North Cyprus were surveyed for data collection.

Research has shown that the academic performance and well-being of students are heavily impacted by factors related to IEQ and internal design. The study conducted in Tehran and North Cyprus has identified the most effective components of IEQ and internal design for student dormitories. The study suggests that proper ventilation, furniture design, temperature control and lighting design are key factors that significantly affect IEQ and internal design. Control and lighting design are key factors that significantly affect IEQ and internal design.

Originality: The study utilizes a comparative study designed to analyze the differences and similarities between the two locations.